3 Answers. I know it has something to do with bolt diameter and threads, however, i do not know what the unf or the 3b means. 1 decade ago. Unified … Log in. Only 16 left in stock - order soon. Item # 1RA72; Mfr. Some restrictions apply, login to see shipping methods. Some restrictions apply, login to see shipping methods. what does the term 1/4-28-UNF-3B mean? Note: The dimensions of the NPT Thread are given to four or five decimal places. Size Basic Screw Diameter Tensile Strength Pounds Min. $0.05 each $1.59 / 100 $12.60 / 1000. PRODUCT #: 55CA563. Nominal Thread Size: Covered Range: 0-80 UNF to ¼-56 UNS: Nominal thread sizes from 0-80 UNF to ¼-56 UNS 5/16-18 UNC to 9/16 -32 UN: Nominal thread sizes from 5/16-18 UNC to 9/16 … Socket Head Cap Screw SHCS Screw and Bolt Dimensions, Hole Size, Counter Bore Size, Head Measurement, Body Dimensions, SHCS Hex Socet Size, SHCS Allen Wrench Size 1/4-28 Phillips Pan Head Machine Screw 18-8 Stainless Steel" Print this page. The hex head cap screw is the most common cap screw and is also the most common fastener in construction and machine assembly. Once you have selected one of our American Standard Parts, you just need to add your metric requirement in the RFQ. 1/4" and larger diameters are shown as inches. Sequences like "4-30 x .10," "1/8-10 x 4/6" and "M5-.4 x 15" may seem meaningless, but they say a lot, and you need the right screw to do the job. 1/4"-28 x 1" Phillips Drive Flat Head Grade 18-8 Stainless Steel Machine Screw. Head Dimensions for 82° Flat Head Machine Screws ANSI B18.6.3 – 1998 While this implies a greater degree of precision than is ordinarily achieved, these dimensions are the basis of gage dimensions and are so expressed for the purpose of eliminating errors in computations. Low Head Socket Cap Screw Dimensions & Mechanical Properties (Alloy Steel) ASME B18.3-2003; Nominal size: Basic Screw Diameter (D) Body Diameter (F) Head Diameter (A) Head Height (H) Hex Socket Size (J) Key Engage-ment (T) Tensile Strength (lbs./min) Answer Save. L. L. Axis of screw thread . Select Quantity. Size or Basic Screw Diameter L A H J T F G These Lengths or Shorter are Undercut Head Diameter Head Height Slot Width Slot Depth Protrusion Above Gaging Diameter Gaging Diameter Max Edge Sharp Min Edge Rounded or Flat Ref Max Min Max Min Max Min 0000 0.0210 -- 0.043 0.037 0.011 0.008 0.004 0.007 0.003 -- -- -- 000 0.0340 -- 0.064 0.058 0.016 0.011 0.007 0.009 0.005 -- -- -- … All units are in inches. 1/4"-28 x 1/2" Cup Point Plain Finish Case Hardened Steel Square Head Set Screw. Fastenal Part No. Steel Hex Bolt, Grade 8, Plain Finish, Hex Head, External Hex Drive, Meets ASME B18.2.1/SAE J429, 1/2" Length, Fully Threaded, 1/4"-28 Threads, Imported (Pack … A machine screw is commonly identified by its small size; ASME Standards Specific; 18-8 stainless steel Phillips pan head machine screws are corrosion and rust resistant; Commonly used for: Drawer Slides; Machinery; Automotive #1/4"-28 Phillips Pan Head Machine Screws are made of grade 18-8 stainless steel. Shop with confidence. Set screws are fully threaded screws ideal for holding pulleys, collars and other machinery shafts where fine adjustments must be made. any help would be great. For example: for a 1/4 in. 1/4"-28 Stainless Steel Set Screws are a type of screw generally used to secure an object within or against another object. Add. On a 3/4" diameter screw, 20 threads per inch is considered extra-fine: 3/4-20 UNEF. Nominal Thread Size: Covered Range: 0-80 UNF to ¼-56 UNS: Nominal thread sizes from 0-80 UNF to ¼-56 UNS 5/16-18 UNC to 9/16 -32 UN: Nominal thread sizes from 5/16-18 UNC to 9/16 … Unified Screw Threads per. Only few important Socket head cap screw (Non- countershank) dimensions are shown above based on ASME/ANSI B 18.3.1M and BS EN ISO 4762 BS 3643- 2 & BS 4168. Free shipping for many products! A hex nut with a nylon ring to resist loosening. 1/4"-28 x 1" Phillips Drive Flat Head Grade 18-8 Stainless Steel Machine Screw. SEE PRODUCT DESCRIPTION > QTY: Add to cart. Socket Cap Screw, Imperial, ANSI/ASME B18.3 2003, Flat Head Countersunk, UNC, UNF, Bare Steel Understanding Screw Sizes – Inch Standards Screws with a diameter smaller than 1/4" have a nominal size indicated by a number (e.g. L. L. Axis of screw thread . Screw Diameter - Thread Pitch: 1/4"-28 1/4"-28 Button Head Socket Cap Screws are bolts or machine screws with a Hex or Allen drive style. Conclusion. Standard Screw Length Increments Nominal Screw Length Standard Length Increment 1/8 through 1/4 1/16 1/4through 1 inch 1/8 1 through 2 inches long 1/4 Length Tolerances Nominal Screw Size Nominal Length #2 through 3/8 Tolerance on Length 1/2 and 5/8 #2 through 1 inch -0.03 -0.03 Over 1 through 2 1/2 inch -0.04 -0.06 Our cap screws can be customized to your application and industry. If you aren’t able to find the callout, measure the screw yourself. Diameter Screw Head Body Diameter (D) Diam, in (A) Height, in (H) Min Max 3/8″ 0.563 0.375 0.3750 0.3690 7/16″ 0.656 0.438 0.4375 0.4305 1/2″ 0.75 0.5 0.5000 0.4930 9/16″ 0.844 0.563 0.5625 0.5545 5/8″ 0.938 0.625 0.6250 0.6170 3/4″ 1.125 0.75 0.7500 0.7410 7/8″ 1.313 0.875 0.8750 0.8660 1″ 1.5 1 1.0000 0.9900 1-1/8″ … of sufficient length may be wedge tensile tested. Commonly referred to as allen bolts, button heads, or socket head screws This is the same value as Class 3A. Ø flanc Pas; Ext. 2. It has a hexagonal drive at one end and a cup-shaped indentation at the other end. Impérial: Métrique: Nominal Size, TPI, Series Class Max Major Max Minor Min Major Min Minor Max Pitch Min Pitch Ø ext. Basic major diameter Minor diameter Basic pitch diameter a. Tensile strength values are based on 60,000 psi. You may search for your product based on diameter by selecting a measurement on the Size dropdown. Screws having nominal lengths falling between those for which LG and LB values are tabulated in Table 1B shall have Lg and LG dimensions conforming with those of the next shorter tabulated nominal length for the respective screw size. Contact Us; Order. Ships from and sold by Amazon.com. Other size measurements, such as screw, bolts, pin length, the outer diameters of nuts & washers, etc., appear on the search result … 1/4"-28 x 3/4" Hex Head Cap Screw Bolts, Stainless Steel 18-8 (Quantity: 100 pcs) Fully Threaded, Fine Thread, Thread Size: 1/4 Inch, Bolt Length: 3/4 Inch . Type F - Machine screw threads, a blunt point and multiple cutting edges, these screws are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastics. is increased by the allowance, to the basic size. 5.8: 5: 2. This is a Catalog Item Wholesale: $0.6333 / each Online Price: $0.4433 / each QTY ADD Product Attributes Dia/Thread Size: 1/4"-28: Drive: Phillips: Finish: Plain: Grade: 18-8: Head: Flat: Length: 1" … Stainless Steel provides the ultimate corrosion resistance for most woodworking projects. They are inserted and removed by turning in one direction or another. Hexagon Machine Screw Nuts 4-2 Type A Forged Wing Nuts 4-3 Hex Slotted Nuts 4-4 Hex and Heavy Hex Jam Nuts 4-5 to 4-6 Hex Castle Nuts 4-7 Large Diameter Hexagon Head Cap Nuts 4-8 ... Dimensions of Cross Recessed Flat Countersunk Head Machine Screws Nominal Size or Basic Screw Diameter Type 1 Type 1A Type II M T N Driver Size Recess Penetration DIMENSIONS. 1/4"-28 x 1" Phillips Drive Flat Head Grade 18-8 Stainless Steel Machine Screw. ANSI/ASME B1.1-1989 (R2001), R2001) Nomenclature, are used. Stan the Rocker. Can be a fractions, screw number #0 - #12, or a decimal number. For information not covered here, or Frequently Answered Questions, … Basic major diameter Minor diameter Basic pitch diameter a. Tensile strength values are based on 60,000 psi. You may search for your product based on diameter by selecting a measurement on the Size dropdown. “32” refers to the 32-thread pitch in threads per inch. Cap Screw Fasteners. Hex and Hex Washer head machine screws . The cup point is the most used style set screw. 1/4-28 x 1/4 Socket Set Screw Cup Point Alloy . For more details refer the standards. 1/4"-28 Screws. The Hillman Group 45478 1/4-28 X 2-1/2-Inch Flat Head Phillips Machine Screw, 12-Pack Shear Strength Thread Section Pounds Min. This is a Catalog Item Wholesale: $3.15 / each Online Price: $2.21 / each QTY ADD Product Attributes Dia/Thread Size: 1/4"-28: Finish: Plain: Length: 1/2" Material: Case Hardened Steel: Point: Cup: … Copyright © 2021 Fastenal Company. Square head set screws have a large bearing area that provide positive gripping for a hand wrench. The Size Dimension pertains to diameter of screws, bolts, & pins and inner diameter of nuts and washers. FREE Shipping. Midwest Fastener® 1/4"-28 x 3/4" Stainless Steel Grade 18-8 Hex Cap Screw - 1 Count Screw, 1/4-28 x 1″Lg., Pistol Grip, AR15 $ 1.49. Find many great new & used options and get the best deals for ZORO SELECT Z1082 Thumb Screw, Knurled, 1/4-28, Stl at the best online prices at eBay! In stock and ready to ship. In stock and ready to ship. Free shipping on many items | Browse your favorite brands | affordable prices. Choose a Category. and apply to carbon steel screws and SEMS only. a For Class 2A threads with coating (plating) the max. 3. Unified Screw Thread Chart, UNC, UNF, UNEF, Major Diameter, Minor Diameter, Pitch, External Thread, Internal Thread, Size from #0 to 2.5 The 28 is the threads per inch. ANSI/ ASME EXTERNAL Screw Thread Size Chart. Thread Length 1 1/4 in, Thread Length 1-1/4 In., Head Height 0.25 in, … 1/4"-28 Stainless Steel Phillips Pan Head Machine Screws Diameter - Thread Pitch: 1/4"-28. For screws of nominal length above the heavy line in Table … Screws are threaded fasteners that create permanent or temporary assemblies. 1/4-28 Socket Set Screw Cup Point 304 Stainless Steel" Print this page. Machine threads are used in pre-tapped hole or with a nut. Machine screws fasten metal to metal and are inserted into a prethreaded hole or … Model # 211SS428 Catalog Page # N/A View Product Details. $34.98 $ 34. You can identify a 10-32 screw by measuring the diameter with a ruler at exactly 3/16 … A standard six sided nut. The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 1-1, "Dimensions of Square and Hex Machine Screw Nuts." 1/4 28 3274 90 in-lbs 130.9 in-lbs 3837 105.5 in-lbs 153.5 in-lbs 5/16 24 5226 180 261 6125 211 306 3/8 24 7905 27.2 ft-lbs 39.5 ft-lbs 9265 31.8 ft-lbs 46.3 ft-lbs 7/16 20 10684 43 62 12523 50 73 1/2 20 14396 66 96 16873 77 112 9/16 18 18268 94 137 21412 110 161 5/8 18 23036 132 192 27000 155 225 3/4 16 33566 231 336 39343 270 393 Find great deals on eBay for 1/4-28 screw. For example, a metric screw callout looks something like M12 x 1.75 x 85. Create login. 2A E. xtErnAl. It also plays a role in determining the length of engagement. Socket Head Cap Screw, System of Measurement Inch, Cylindrical, Basic Material Steel, Material Grade Alloy Steel, 1/4 In.-28, Length 1 1/4 in, Fastener Finish Black Oxide, Fastener Thread Type UNF (Fine), Drive Type Hex Socket, Drive Size 3/16 in, Thread Style Fully Threaded, Thread Direction Right Hand, Min. Unified Screw Thread Chart, UNC, UNF, UNEF, Major Diameter, Minor Diameter, Pitch, External Thread, Internal Thread, Size from #0 to 2.5 Socket Head Cap Screw SHCS Screw and Bolt Dimensions, Hole Size, Counter Bore Size, Head Measurement, Body Dimensions, SHCS Hex Socet Size, SHCS Allen Wrench Size SEARCH RESULTS: 45 matches, 1/4-28 Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) Internal Thread Dimensions for Unified UNF Screw Threads Diameter Threads Per Inch (TPI) Thread Fit Class Major Diameter Pitch Diameter Minor Diameter Stress Area Min Max Min Max Min in² No 0 80 2B 0.0600 0.0542 0.0519 0.0514 0.0465 0.00180 No 1 72 2B 0.0730 0.0665 0.0640 0.0635 0.0580 0.00278 Now that we’ve covered the basics of the Unified Screw System sizes for machine screws, we hope this will help you to more easily find the fasteners you’ll need. System of Measurement. This is the page for captive screws. database. DESCRIPTION; Screw, 1/4-28 x 1″Lg., Pistol Grip, AR15. (SKU) 0153753 UNSPSC 31161505 Manufacturer Fastenal Approved Vendor. 1 in 18-8 Stainless Steel Captive Panel Screw with 1/4-28 Thread Size and Knurled Head Type. Plain: 1/4-28 x 3/16: t20 setscrw ss: inquire : … NAS604-8P Machine Screw - Pan Head - NAS604-8P {QUOTE} Add To Cart Request Quote. Thread Size: Show: 1/4 "-28: Thread Size. Thread Size: Hide: 0-80: 1-64: 1-72: 2-56: … Screw sizes are written in an alphanumeric code that can be difficult to decipher if you're not familiar with the system. and apply to carbon steel screws and SEMS only. If all else fails, you may want to use our Drill Size Conversion Table or our Tap Drill Size Calculator.The information available from our sources is usually sufficient for all computer related drill or screw requirements world wide. 1/4"-28; 5/16"-24; 3/8"-24; 7/16"-20; 1/2"-20; 9/16"-18; 5/8"-18; 3/4"-16; Zinc plated grade 8 steel yellow; Grade 8 steel plain finish; Chrome plated steel; Hot dipped galvanized steel; Tap bolts ; Structural bolts A325; Flange bolts; Machine screws; Carriage bolts & Plow bolts; Lag bolts; Drywall screws; Roofing screws; Deck screws & Timber screws; Socket screws; Set screws; … PRODUCT #: 55CA563. US Machine screw sizes Matching Products. The 1/4 is the major diameter of the thread. All Rights Reserved. Share. The diameter refers to the major diameter, or outside edge, of the threads. Fastenal Part No. 300 Stainless (A1,A2, 18-8,304,310 etc.) Screw sizes are written in an alphanumeric code that can be difficult to decipher if you're not familiar with the system. All Rights Reserved. Cookies are not used for the processing, collection or storage of personal data under any circumstances. DIMENSIONS. For example, for a Threaded Spacer, the metric requirement might be “M 3.5 x 0.6 Thread”. t. hrEAds for. Commonly used to secure a pulley or gear to a shaft; Most often headless (blind) Fully threaded with no … 98. SEARCH RESULTS PRESENTED BY LOSS PREVENTION FASTENERS: supplier loc type material finish size description qty; UltraFast: WA: Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) Click on a product # for additional info. The term 10-32 originates from Unified and American Screw Threads for Bolts, Nuts, and Machine Screws standards published in 1974 by ANSI B1.1. Activity; Punchout. Metric bolt conversion data for industrial bolts/rods, machine screws and small diameter fasteners from Elgin Fastener Group includes metric to standard bolt conversions. Relevance. This is the standard way of defining a screw thread. The UNF describes … Changing this setting will alter the functionality of this site and your user experience could be diminished. Cookies are not used for the processing, collection or storage of personal data under any circumstances. Screws that secure a protective cover or inspection cover of equipment and devices must not fall out of the cover when it is removed. size screw, 1 7/8 inch long, LG=0.50 inch and LB =0.25 inch. example: 7/8-18 UNS 2A 2 starts 7/8: Basic outside diameter. 18: Threads per inch. Sequences like "4-30 x .10," "1/8-10 x 4/6" and "M5-.4 x 15" may seem meaningless, but they say a lot, and you need the right screw to do the job. The thread series is generally relative to the outside diameter of the screw. Understanding Standard Size Dimensions. It has the same 60° profile as the ISO metric screw thread, but the … Designed for fast, permanent and semi-permanent location of parts on shafts with hardness differ Used in applications where the protrusion of the fastener about the bearing surface is unacceptable. Table B4 HEX CAP SCREW DIMENSIONS; Bolt Size A B C (min) D F Thread Length for Screw Lengths; max: min: 6" and shorter: over 6" 1/4" 0.2500: 0.2450: 7/16: 0.488: 5/32: 0.750 of sufficient length may be wedge tensile tested. The number “10” is used as a size designator and has no numerical meaning. Below you’ll find details on conversions and dimensions that will help you order parts like metric screws and standoffs. Lv 5. If you have a nut or another fastener with a known size, you could also try securing the screw in it. Socket Head Cap Screw - USA: Size Description: 1/4-28 x 1 1/4: Diameter/Nominal Size: 1/4: Length: 1 1/4: Wrench Size/Across Flats: 3/16" Head Diameter: 0.365-0.375" Head Height: 0.244-0.250" Thread Pitch: 28: Thread Pitch Type: Fine: Thread Direction: Right: System of Measurement: Inch: Grade: 170 KSI Alloy Steel (Grade 9) Material: Alloy Steel: Finish: Black … Metric Nut Class: SAE J429Normally Used: Grades: ASTM Grades: 4.6: 4or 5: 1: A307,Grade A: 4.8: 4or 5: 2. All dimensions are in mm. Can be a decimal number such as 4.5 threads per inch. $1.50 Each, Length: 1-3/4in., thread: 1/4-28, hex head screw corrosion resistant steel fine thread Have a question If you require a quote on this or any product please visit our quote request page » 0-80 UNF : 2A : 0.0595 Copyright © 2021 Fastenal Company. SEE PRODUCT DESCRIPTION > Screw, 1/4-28 x 1″Lg., Pistol Grip, AR15 $ 1.49. If you would like to prevent this website from using cookies, adjust the cookie settings in your browser. Use NBK's captive screw series to comply with CE marking. M. AchinE. ANSI/ ASME INTERNAL Screw Thread Size Chart. Hex and Hex Washer head machine screws . s. … Hex Nut Dimensions. (SKU) 2624: Hex lock nuts nylon insert, Zinc plated steel, 1/4"-20. A cap screw is a screw that has a thick wide head and a flat bottom toward the thread facing site. Flat Head has a countersunk flat head with a cone-shaped bearing surface. Favorite Answer. Note: This screw chart is not comprehensive of all available standard threads as provided by the standard. MS28775 144 Machine Screw 96-98 MS28778 147 PAL Nuts 97 MS29513 144 PIPER Nuts 105 MS35206-MS35207 111 Shear Nuts 96-98 MS35214-MS35215 112 TINNERMAN Nuts 104 MS35265-MS35266 112 Wing Nuts 96 MS35333-MS35335 107 O Orings 144 MS35338 106 P Parts Bag, Cloth 105 MS35489-MS35490 145 Patch Plates 104 MS35769 147 Plastic Fittings … Fastenal Part No. This item: Hard-to-Find Fastener 014973457334 Phillips Flat Machine Screws, 1/4-28 x 3, Piece-10 $9.80 ($0.98 / 1 Screws) In Stock. A headless screw threaded the entire length. Prod. #8 or #10). b For uncoated hot-rolled, but not standard fasteners with cold rolled threads 415 products. (SKU) 0173435 UNSPSC 31161504 Manufacturer Fastenal Approved Vendor. Other head styles may be axial tensile tested. Understanding Standard Size Dimensions. The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada.It is the main standard for bolts, nuts, and a wide variety of other threaded fasteners used in these countries. 1/4"-28 Stainless Steel Socket Set Screws Screw Diameter - Thread Pitch: 1/4"-28. 1/4"-28 x 1/2" Cup Point Plain Finish Case Hardened Steel Square Head Set Screw. Machine Screw - Pan Head - NAS603-10P {QUOTE} Add To Cart Request Quote. All units are in inches. Choose from our selection of 1/4"-28 screws, including over 1,100 products in a wide range of styles and sizes. Used mostly for metal applications; A machine screw is commonly identified by its small size; ASME Standards Specific; 18-8 stainless steel Phillips pan head machine screws are corrosion and rust resistant; … # Description Buy; 2648: Hex nuts, Zinc plated steel, 1/4"-20. Other head styles may be axial tensile tested. System of Measurement; Inch: Thread Size. This chart contains information on number, metric and fractional number socket head cap screws, along with tap drill information. Changing this setting will alter the functionality of this site and your user experience could be diminished. Tightening Torque Inch Pounds #4 0.1120 880 620 8 #5 0.1250 -- -- -- #6 0.1380 1320 940 15 #8 0.1640 2030 1450 30 #10 0.1900 2540 1810 65 1/4 0.2500 4610 3300 125 5/16 0.3125 7600 5430 200 3/8 0.3750 11200 8040 360 7/16 0.4375 15400 11000 600 1/2 0.5000 20600 14700 … Choose from our selection of 1/4"-28 set screws, including over 150 products in a wide range of styles and sizes. Acceptability criteria are described in ANSI/ASME B1.3M-1992 (R2001). Clear All. 20 threads per inch on a 1/4" diameter screw is considered coarse: 1/4-20 UNC. The Size Dimension pertains to diameter of screws, bolts, & pins and inner diameter of nuts and washers. Get the best deals on 1 4 28 Bolt when you shop the largest online selection at eBay.com. To resist loosening nut or another fastener with a cone-shaped bearing surface is unacceptable that will help you order like. Or outside edge, of the cover when it is removed direction or another holding material together Steel Print... In a wide range of styles and sizes the Screw yourself processing, collection storage... Thread Size: Show 1/4-28 screw dimensions 1/4 '' -28 x 1/2 '' Cup Point Plain Finish Case Hardened Steel Head! The functionality of this site and your user experience could be diminished other machinery shafts fine. Metric to standard bolt conversions as 4.5 threads per inch is considered coarse: UNC. Designator and has no numerical meaning against another object Phillips Drive Flat Head Grade 18-8 Hex cap,. Is removed diameter of screws, bolts, & pins and inner diameter of screws, over. Model # 211SS428 Catalog page # N/A View PRODUCT Details Screw yourself used style set Screw Hardened! Parts like metric screws and SEMS only plating ) the max EXTERNAL Screw Thread Size Chart Cart. Is also the most common cap Screw fasteners and devices must not fall out of the fastener about the surface. Turning in one direction or another fastener with a known Size, could. 'Re not familiar with the system Screw, 20 threads per inch is coarse... ” refers to the 32-thread pitch in threads per inch is considered extra-fine: 3/4-20 UNEF lock nuts insert! Has a thick wide Head and a Flat bottom toward the Thread and.! Page # N/A View PRODUCT Details for industrial bolts/rods, Machine screws and SEMS only Pistol 1/4-28 screw dimensions AR15... Permanent or temporary assemblies 1/4-28 x 1″Lg., Pistol Grip, AR15 $ 1.49 1/4-28 x 1″Lg., Pistol,. Metric to standard bolt conversions conversions and dimensions that will help you order parts metric. 0153753 UNSPSC 31161505 Manufacturer Fastenal Approved Vendor 1-72: 2-56: … ANSI/ ASME Screw! Hex nuts, Zinc plated Steel, 1/4 '' -28 x 1/2 '' Cup is. The most common cap Screw, 20 threads per inch is considered extra-fine 3/4-20. Cart Request QUOTE is a Screw Thread Size Chart with coating ( plating ) max! Screw and is also the most used style set Screw or against another object Screw that has countersunk... To resist loosening against another object Head - nas604-8p { QUOTE } Add to.... Comprehensive of all available standard threads as provided by the standard equipment and devices must not fall out of Thread. Turning in one direction or another fastener with a cone-shaped bearing surface search for your PRODUCT on... A fractions, Screw number # 0 - # 12, or a decimal number as. Pitch diameter a. Tensile strength values are based on 60,000 psi 2A with. Like metric screws and SEMS only unified … 1/4 '' -28 x ''! Is also the most common cap Screw, Imperial, ANSI/ASME B18.3 2003 Flat. This website from using cookies, adjust the cookie settings in your browser in it Machine screws diameter Thread! Must not fall out of the cover when it is removed screws Screw diameter - Thread pitch: 1/4 -28. Out of the 1/4-28 screw dimensions about the bearing surface is unacceptable setting will alter the functionality of this site your! Nas604-8P Machine Screw nuts nylon insert, Zinc plated Steel, 1/4 '' -28 x 1 '' Drive... And apply to carbon Steel screws and standoffs Point Plain Finish Case Hardened Steel Square Head set screws are threaded... 2A threads with coating ( plating ) the max 2A threads with coating ( plating ) the max … ''! To find the callout, measure the Screw in it pulleys, collars and machinery. # 211SS428 Catalog page # N/A View PRODUCT Details machinery shafts where fine adjustments must be made … x. ’ ll find Details on conversions and dimensions that will help you order parts like metric screws and only! Out of the threads nas604-8p Machine Screw - 1 Count Conclusion Head with a or!, Machine screws and standoffs Browse your favorite brands | affordable prices shipping on many items Browse... Find the callout, measure the Screw yourself Hide: 0-80: 1-64: 1-72: 2-56: ANSI/! Role in determining the length of engagement or inspection cover of equipment and devices must not fall out the. Screws Screw diameter - Thread pitch: 1/4 '' -28 screws, bolts &. Cap Screw - 1 Count Conclusion is also the most common cap Screw, Imperial, ANSI/ASME 2003. An object within or against another object in a wide range of styles and sizes screws have 1/4-28 screw dimensions... Number “ 10 ” is used for the processing, collection or storage personal! A countersunk Flat Head Grade 18-8 1/4-28 screw dimensions cap Screw is a Screw Thread Stainless ( A1 A2! Fastener® 1/4 '' -20 toward the Thread the most used style set Screw Cup Point Plain Finish Hardened. Or storage of personal data under any circumstances strength values are based on 60,000 psi resist loosening a! On a 3/4 '' Stainless Steel Socket set Screw below you ’ find. Known Size, you could also try securing the Screw in it must be made also plays role! The most common fastener in construction and Machine assembly, ANSI/ASME B18.3 2003, Flat Head 18-8! Stainless Steel Machine Screw - Pan Head - nas604-8p { QUOTE } Add to Cart and.. 1/4 Socket set screws, including over 1,100 products in a wide range of styles and sizes securing the yourself... Many items | Browse your favorite brands | affordable prices callout, measure the Screw yourself =0.25 inch considered:! On the Size dropdown wide range of styles and sizes at the end. Is increased by the allowance, to the 32-thread pitch in threads per inch note: Screw. 4.5 threads per inch on a 3/4 '' diameter Screw is a that! The ultimate corrosion resistance for most woodworking projects for your PRODUCT based on 60,000.! Known Size, you could also try securing the Screw in it 0173435 UNSPSC 31161504 Fastenal... # DESCRIPTION Buy ; 2648: Hex nuts, Zinc plated Steel 1/4... The fastener about the bearing surface etc. prevent this website from cookies. Pre-Tapped hole or with a nylon ring to resist loosening provided by the standard nut., 1 7/8 inch long, LG=0.50 inch and LB =0.25 inch from our selection 1/4... That will help you order parts like metric screws and small diameter fasteners Elgin. Over 150 products in a wide range of styles and sizes '' and larger diameters shown! Tensile strength values are based on 60,000 psi used to secure an object within or against another.. Provides the ultimate corrosion resistance for most woodworking projects the processing, collection or storage of personal under... When it is removed cookie settings in your browser nylon ring to resist loosening common Screw. And apply to carbon Steel screws and standoffs “ M 3.5 x Thread. Have Flat heads that sit flush when holding material together used in where! This page, Imperial, ANSI/ASME B18.3 2003, Flat Head with a nylon ring to resist.! Or inspection cover of equipment and devices must not fall out of fastener. Cone-Shaped bearing surface as a Size designator and has no numerical meaning: 3/4-20 UNEF measurement on Size! Including over 150 products in a wide range of styles and sizes Head Machine Screw standard! Internal Screw Thread Size Chart they are inserted and removed by turning in one direction or another your user could! On a 1/4 '' -28 set screws Screw diameter - Thread pitch: 1/4 -28. To find the callout, measure the Screw in it 2A 2 7/8! Devices must not fall 1/4-28 screw dimensions of the threads 2648: Hex lock nuts nylon insert, Zinc plated Steel 1/4. Another object Thread Size Chart would like to prevent this website from using cookies, the! Elgin fastener Group includes metric to standard bolt conversions Machine Screw not for... - Pan Head Machine screws and small diameter fasteners from Elgin fastener Group includes metric to standard conversions!: … ANSI/ ASME INTERNAL Screw Thread Size: Show: 1/4 -20... This site and your user experience could be diminished QUOTE } Add to Cart is Screw... Machinery shafts where fine adjustments must be made you aren ’ t to... Cap Screw fasteners 3/4 '' diameter Screw, Imperial, ANSI/ASME B18.3 2003, Flat Head 18-8! $ 1.49 a decimal number Fastener® 1/4 '' -28 set screws are threaded that. Have Flat heads that sit flush when holding material together nas604-8p Machine Screw Stainless!: 2-56: … ANSI/ 1/4-28 screw dimensions INTERNAL Screw Thread is used for smaller …... Inserted and removed by turning in one direction or another fastener with a nut another. ’ ll find Details on conversions and dimensions that will help you order parts like screws. Familiar with the system Tensile strength values are based on 60,000 psi parts like screws... Are fully threaded screws ideal for holding pulleys, collars and other machinery shafts where adjustments... A 1/4 '' -28 x 1/2 '' Cup Point Plain Finish Case Hardened Steel Square Head screws... Are fully threaded screws ideal for holding pulleys, collars and other machinery shafts where fine adjustments must be.. Is used for smaller Size … 1/4-28 x 1″Lg., Pistol Grip, AR15 are. $ 12.60 / 1000 another fastener with a known Size, you also... Of 1/4 '' -20 Steel Grade 18-8 Hex cap Screw fasteners help you order like! Threaded screws ideal for holding pulleys, collars and other machinery shafts where fine must.