Standard Bolt Sizes Chart Pdf
Tensile strength values for stainless screws are offered as approximations only; there is no single standard for the performance requirements of. 8 f - 568 class 10. 2129 Flanges 13 Light/Extra Light Pipe To Australian Standards 14. This standard specifies the flange types and their facings, dimensions. Mon-Fri 7am-5pm Pacific Standard Time. button socket head cap screws, inch. The size marked on a Whitworth or BSF (British Standard Fine) spanner refers to the size of the thread and not the. Check the size on the shank of the tap to be sure it is the right size. Tapping Screws (Approx. 1-1982) Standard. Bolts to this standard when matched with the appropriate nuts have been designed to provide an. I normaly measure a bolt of the same size and turn the bar to that size. Hardness Conversion Chart; Heavy Hex Bolt Dimensions; Heavy Hex Head Cap Screw Dimensions; Heavy Hex Nut Dimensions; Hot Dipped Galvanizing; Imperial to Metric Conversions; Metric to Imperial Conversions; Metric Hex Bolt Dimensions; Metric Thread Pitch Chart; Nut Compatibility Chart; Nut Weight Chart; Standard Thread Pitch Chart; Socket Head. considerations. commercial products such as machine screws, bolts, nuts, and studs for most interchangeable equipment parts and structural applications. Nominal diameter is a more of a label than a size. Please match your machine with the proper bolt by using the chart to the left. Title: US-size-chart-hex-bolt Created Date: 2/16/2017 1:04:55 PM. com ALLOWANCE The prescribed difference between the design size (maximum material) and the basic size. NEMA QUICK REFERENCE CHART Drawings represent standard TEFC general purpose motors Refer Data Section 502 for various models, OPEN or TEFC *D im e ns oa rf c ly. Hex Key Size. IEC and British Standard Fuses IEC & British Fuses Application Data The standard range of fuses for low voltage industrial and general purpose applications meet the requirements of BS 88 and IEC 60269. commonly used sizes are normally stocked, this Handbook is not a stock list. Testing of Bolts & Nuts FASTENERS conforming with the required wedge taper angle without fracturing at its junction with the shank. Always consult the manufacturers instructions or engineering recommendations when making bolted connections. 10 Flange End Dimension aNSI/aSMEb16. com/productpdfs/page%2036. etration using a GO size element connected to an indicator. All rights reserved. Extensive data on Metric bolt properties is here, and the same site's home page gives links to a lot of other materials, analysis, and fastener data. Standard Drill Bit Sizes for CNC machining (Conversion Tables) | 3D Hubs Jump to navigation. shaft height, shaft length, bolt hole spacing and location. C H A R T S & R E F E R E N C E CR3 OPEN TYPE WIRE LOOM CLIP SIZING CHART See Page 174 for product line information. Designation — High strength structural bolts shall be designated by name, size, nominal length, the number of this standard and the property class identification symbol 8. **NOT AN SAE STANDARD. english/ metric bolt substitution table equivalent metric bolt substitution – astm grade bolt sizes f - 568 class 4. The stretch of a bolt or metal rod loaded in tension is calculated by use of the following equation. Size Length Hook Thread Length 3/8 6 1 1/2 3/8 8 1 […]. Specifying standard oversized holes for anchor rods Foundation inaccuracies are common. Trying to make sense of all the different screw and bolt thread lengths can be a real challenge—even for the most knowledgeable of professionals. 393" actual outside diameter. H Head Height Ref. P/N 04-05400 POCKET BOLT GAUGE This new aluminum gauge measures just 3-3/4" x 5-7/8" to fit eas i ly in a shirt pocket. has made every effort to insure the data provided in these charts is accurate. Pipe Thread Types and Designations Over time many different types of screw threads have been developed. Nominal Dimensions of Standard Threads ODM -- Outside Diameter of the Male IDF -- Inside Diameter of the Female TPI -- Threads per Inch GHT (3/4") -- 1. Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. Bolts (inches) Diameter of Bolt Holes (inches) Diameter of Bolt Circle (inches)(M) 30 38 3/4 28 1 1/4 1 3/8 36 36 46 32 1 1/2 1 5/8 42 3/4 42 53 36 1 1/2 1 5/8 49 1/2 48 59 1/2 44 1 1/2 1 5/8 56 BOLTING PATTERN AND BOLT LENGTHS ASME B16. Inch Series Button Head Socket Cap Screws (continued) 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. Weight Per 100 Part No. During installation the inserting tool applies torque to the tang re-ducing the diameter of the. Japan and Korea use a separate system. Ring Joint Stud L'gth Ring No. Meets the performance requirements of Federal Specification RR-C-271F Type IVA, Grade A, Class 3, except for those provisions required of the. Standard Bolts and Nuts Standard bolts and nuts have characteristics determined by: Bolt types Finish Proportions Threads Thread lengths Bolt lengths Specifications In specifying bolts, the following information must be covered in order: Nominal size of bolt body Thread specification or thread note Length of bolt Finish of bolt Style of head. Check & Lubricate. Standard Screw Thread Chart Standard Thread Size Tap Drill Size (Inches) Clearance Drill Size (Inches) The clearance drill sizes listed are the most commonly used. Flange sizes DN15 to 600 to ANSI B16. 4 Fasteners for kits shall remain to their existing standard screw size. T h e s e d i m en s i o n s a r e s p e c i f i c t o e a c h m anu f a c t u r e r. (where D is the nominal screw size in inches) are not subject to tensile testing. COM Page 1 of 2 Class 150 LB Nominal Pipe Size Diameter of Studs No. Most of the dimensions are standard dimensions that are common to all motor manufacturers. He received U. GFC Engineering & Testing Center 1524 East 14 Mile Road • Madison Heights, MI 48071 • 248-307-0567 • www. View chart below, or click here to download in PDF format. 8/ Grade 10. This chart illustrates industry-standards for nail sizes and their dimensions. 1075 Standard Stud & Heavy Hex Nut Specifications. Users of these tools should not use them as a substitute for professional engineering advice. Document Imaging Solutions Comparison Chart Nuance Power PDF PDF solution comparison. They are supplied with four hex nuts. 2014 Specification for Structural Joints Using High-Strength Bolts PDF Code of Standard Practice for Steel Buildings and Bridges (ANSI/AISC 303) The 2016 Code of Standard Practice provides a framework for a common understanding of the acceptable standards when contracting for structural steel. Fasteners should be replaced with the same or higher property class. 8/ Grade 10. TORQUE CHART - SAE PLAIN AND ZINC PLATED SIZE: THREAD. Pocket Ref A great reference guide, with metric system conversion charts and more. HEAVY HEX NUTS ASSEMBLED. of Bolts/Studs Per Set ½ ½ x 2 4 ½ x 2½ ½ x 2¼ 4 ½ x 2¾ 4 ½ x 3¼ 4 ¾ x 4½ 4. Tightening torques are only recommended for proper applications. Metric Mild Steel Hexagon Bolts, Screws and Nuts (SABS 135/DIN 555) 1 M & D SPECIALISED FASTENERS cc. 09 kurmsgcm100051 m10 40 51 103 50 50 7. The clearance drill sizes listed are the most commonly used sizes. DIN 6921 Hex Flange Bolt (Non-Serrated) 10. the information presented is believed to be accurate at the time of document creation. When the “bumps” are flattened so that the gaps. You need to review this section. industry designation, not the actual size. Polyester Thread - Size 207 / Tex 210 / Govt. A direct or indirect reference to a consensus standard to represent that a fastener conforms to particular requirements of the consensus standard shall not be construed as a representation that the fastener meets all the requirements of the consensus standard. The values listed in the chart above are the recommended values for a class 2 Thread fit. Install insert. Pipe Size Wrench Size Flange Bolts Quan. 5 CARBON & STAINLESS STEEL FLANGES • Dimensions & Weights BLIND WELDING NECK (WN) SLIP-ON WELDING (SOW) H D A K G H D A K G SOCKET WELDING (SW) H D C A K G B C H D A K G B C SOW, SW Threaded C. Understanding Screw Sizes - Inch Standards Screws with a diameter smaller than 1/4" have a nominal size indicated by a number (e. Figure 2 shows the main parts of the bolt assembly. Theo- Absolute retical Sharp Min. Each AN size number has its own standard thread size [see column three of the chart]. All units are in inches. STANDARD PRODUCTS FULL-CATALOGUE Tigges Fastener Technology (M) Sdn. of Bolts/Studs Per Set ½ ½ x 2 4 ½ x 2½ ½ x 2¼ 4 ½ x 2¾ 4 ½ x 3¼ 4 ¾ x 4½ 4. 18 Robert-James Sales, Inc. Drilled & Undrilled AN Bolts Cad-Plated AN Airframe Steel Bolt Kit, Undrilled, 212 pc. Inch Series Button Head Socket Cap Screws (continued) 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. If you want the tapping size for a hole, and you dont have the charts to hand ,find a drill that fits the inside of a nut of the size you want I know this advice is crude, but when needs must, it works. ASTM A325 is an ASTM (American Society of the International Association for Testing and Materials) International standard for heavy hex structural bolts. Hexagon Head Socket. Drill Size Decimal Equiv. Area Open Dia. If higher property class fasteners are used, these should only be tightened to the strength of the original. Browse Banjos Bolts Thread Metric Parallel in the World Wide Metric, Inc. Stainless Steel Seamless Tubing—Fractional, Metric, and Imperial Sizes 1 STANDARD TUBING Stainless Steel Seamless Tubing and Tube Support Systems Fractional, Metric, and Imperial Sizes 316 / 316L and 304 / 304L stainless steel Standard instrumentation tubing 1/8 to 2 in. nutandboltfactory. Once that is determined, the appropriate number of stud bolt will be found in the same line of the table. NOTE • Metric thread size bolts are available (color coded gold) for all coupling sizes upon request. Download a complimentary PDF of our Fastener Markings chart. All sizes are in inches. Features • • Sold•in•Individual•Sets•or•Box•Quantities. The size most commonly associated with screw threads is the nominal diameter. The resultant assembly will produce clamp loads from 25 to 60% less than expected, providing the threads haven’t stripped or have begun to strip, in which case the loads will be close to 100% lost. 4 APPLICATION API Spec 6A, "6B" flanges, may use "R" or "RX" gaskets, "RX" gaskets producing greater standoff between flanges. Metal Industries is a Professional steel flanges and forgings manufacturer in india, specialize in manufacturing Flanges Table, Flanges Dimensions, Flanges Standard Chart, Flanges Size Chart, steel valve, flanges bolts, steel flanges, steel forgings range of flange and forging types and sizes. However, in special circumstances you may want to use oversized or slotted holes. com: standard bolt size chart. J Hexagon Socket Size Nom. KEY WORDS: anchor bolts, materials, selection, specifications. Standard U Bolt Size Chart Sizes are +/- 1/16th of an inch on all bent bolts. Standard Plastic Coated U-Bolt Size Range: Size1/2. Common Bolt & Spanner Size Table here’s a handy table for bolts and nuts with basic dimensions and spanner sizes etc, it covers Australian standard metric fasteners (not structural bolts), so sorry rest of the world, the spanner sizes may be slightly different for you. Below is a basic summary the most common grades. and bolt tension, as given in the following Tables in this Technical Standard. com offers 11,900 standard steel bar sizes products. Stud bolts with metric thread are designed to perform functions similar to those of double end studs (clamping type or interference-fit type). Accidents may be caused by Eye Bolts with metric threads being screwed inadvertently into tapped holes having a BSW or UNC thread and vice versa. Tapping Screws (Approx. Where the capacity of available testing equipment does not permit testing of bolts in full size, a hardness test is carried out. A Head Diameter Max. Acceptability criteria are described in ANSI/ASME B1. GLOSSARY OF FASTENER TERMS “PROFESSIONALS SERVING PROFESSIONALS” 1 TECHNICAL www. is not responsible for any claim traceable to any errors [typographical or otherwise] as contained herein. If you want the tapping size for a hole, and you dont have the charts to hand ,find a drill that fits the inside of a nut of the size you want I know this advice is crude, but when needs must, it works. These are simply standard guidelines for screw penetration. Under “nail size,” the “penny size” refers to a standard nail unit. Check out the back brace and steel nose piece. Both types of pins are removable, making the flange face available for servicing. 9 a - 325m type 1 or 2 a - 325m type metric english 3 (mm) (inches) hole diam (mm) english - astm grade specified a - 449 type 1 a …. and 3 to 25 mm sizes Marked to indicate size, material, specifications. Metric full nuts. 75" Needle Bearings size chart. SAE PUMP AND MOTOR MOUNTING FLANGE AND SHAFT DIMENSIONS SAE Straight (keyed) Shafts SAE Code Shaft DIA (D) SAE Two Bolt Mounting Flange SAE Code Bolt PCD Bolt. 5 Flanges Flange & Nominal Pipe Size Flange Studs Wrench Size Stud Bolt Length No. 39,000 conversions for over 5100 units. Thread and End Connection Terminology Standards are used to help identify threads and end connections. Since tubing and hoses can have different wall thicknesses, the size number does not necessarily tell you how large the inside diameter will be. Threads per inch, diameters of clearance holes, size of tap drills, and size of nuts. (DOWNLOAD AND PRINT CHARTS) Fastener Reference Charts In. 55 kurmsgcm100048 m10 40 48 100 50 50 7. Metric to Pipe Conversion Chart Diameter Nominal DN (mm) Nominal Pipe Size NPS (in. 9 grade have a maximum torque value of 12 foot-pounds. "ksi" indicates load in ___. Tap Size 80. Pipe Size Diameter C (Hook) L (Length) T (Thread Length) 1/2 1/4 15/16 3 1/4 2 3/8 3/4 1/4 1 1/8 3 5/16 2 3/8 1 1/4 1 3/8 3 […]. There are different standards to describe the steel pipe size, OD and wall thickness. • Bolt and nut of high strength corrosion-resistant bronze alloy • Pressure bar is copper through 40H; copper alloy is used for 350 kcmil and above • Bolt and nut of hex design up to 350 kcmil • CSA certified and UL listed — Split-bolt connectors Type H – High strength split-bolt connectors Cat. Tapping Screws (Approx. View Chart View As PDF. 00" 9 171 124. 83 kurmsgcm100027 m10 20 27 77 50 50 5. The technical discussions referenced in this guide represent typical applications only. Tables of the standard drill bit sizes (metric, fractional inch, and wire gauge) commonly used in CNC machining. This procedure of tensile testing bolts in their full size is recognised and adopted by many standardizing bodies, including the International. Carriage bolt wheelbarrow dimensions should be at least 8 pieces of 3/8-inche machine bolts with two pieces of 3/8-inch U- bolts. 1, EN 10226-1, or ISO 261) that describes thread form, including a thread's angle, pitch, and diameter. All-Pro Threaded neither employs nor maintains an engineering or technica l staff, and All-Pro is merely supplying certain. G mm WN Blind SOW SW Nominal Size Class 150 Flanges to ASME B16. Size Pitch Tapping Drill mm M10 1. 39,000 conversions for over 5100 units. com pipe tHreaD SizeS (npSc) tHreaD Drill tHreaD Drill 1/8 - 27 11/32 11/2. Users of these tools should not use them as a substitute for professional engineering advice. Mild Steel Hexagon Head Setscrews 4. An inquiry should be made as to stock availability on specific products when planning a new project, from your Ajax Fasteners Accredited Distributor. Indicates suggested shaft sizes SPINE Spine of arrow size shown (static) MODEL Designates arrow model WEIGHT Listed in grains per inch BEMAN SELECTION CHART ADJUSTMENTS The Easton Hunting chart is based on a Bow Speed Rating of 301-340 FPS and a 100 grain point if your set-up is different please follow these steps. How to Use this chart: The table of Wood Screw Specifications simplifies the selection of the bit or drill size best suited to your requirements. Length of studs are measured 1st full thread to last full thread. By using advanced fuse technology, current ratings up to 400A have compact dimensions, but retain standard dimensional and performance requirements. 23 Printable Tap Drill Charts [PDF] A drill and tap chart is what specifies the right size of drill bit that one can use to create the correct sized opening that would complement tap dimensions. 127B Split Lockwashers 128 Curved Spring Lockwashers 267 4759/1 Tolerance Values for Metric Fasteners 315 Malleable Cast Wing Nuts 439B 4035 Hex Jam Nuts 433 7092 Flat Washers, Small O. When this size started in use is a more difficult question. 5 Flanges Flange & Nominal Pipe Size Flange Studs Wrench Size Stud Bolt Length No. 75x30 translates to a bolt that is 12mm in diameter, has a distance of 1. commercial and standard items that have predetermined mounting holes. where the bolt and the concrete meet. Size 1-1/8" and above shall have 8 threads per inch. Interchangeable Bolt Pattern and Wheel Chart for 3 lug, 4 lug, 5 lug, 6 lug, 7 lug, 8 lug and 10 lug Bolt Patterns for Cars, Trucks, Station Wagons, Vans, SUVs, Motor Homes, ATVs and UTVs. TECHNICAL INFORMATION Metric Thread Pitch Table Metric Pitch Table Metric Diameter Pitch mm Coarse Standard Fine Standard 3mm 0. Save metric bolt chart to get e-mail alerts and updates on your eBay Feed. AISC’s Code of Standard Practice for Steel Buildings The Code of Standard Practice is referenced in the All bolt sizes, locations, quantities, and. 127B Split Lockwashers 128 Curved Spring Lockwashers 267 4759/1 Tolerance Values for Metric Fasteners 315 Malleable Cast Wing Nuts 439B 4035 Hex Jam Nuts 433 7092 Flat Washers, Small O. com ANCHOR BOLT & SCREW COMPANY ISO 9001 CERTIFIED Since December 3, 1999, Anchor Bolt & Screw Company has been ISO 9001 Certified. C Center of pipe to top of hanger. 5 CARBON & STAINLESS STEEL FLANGES • Dimensions & Weights BLIND WELDING NECK (WN) SLIP-ON WELDING (SOW) H D A K G H D A K G SOCKET WELDING (SW) H D C A K G B C H D A K G B C SOW, SW Threaded C. Class 3A and 3B Class 3A and 3B threads have no specific allowance. 75x30 translates to a bolt that is 12mm in diameter, has a distance of 1. (The data has not yet been checked against the latest revision. com/productpdfs/page%2036. The above chart will come in handy when deciding on what sizes to use for your broken bolt project. Pipe Thread Types and Designations Over time many different types of screw threads have been developed. 8947573 MPa per ksi. ASTM & SAE Grade Markings: Steel Bolts & Screws. the standard pitch diameter ranges is 0. standard and metric wrench size chart. Thread for needle size 180 / 24. Pipe Thread Types and Designations Over time many different types of screw threads have been developed. english to metric conversion table multiply by to get multiply by to get metric/ english bolt substitution table astm grade specified bolt sizes f - 568 class. In the nineteenth century, manufacturers needing fasteners would devise their own systems. of Studs Bolt Length of Studs Ring Joint Raised Face Ring Joint Gasket No. where the bolt and the concrete meet. modates any standard bolt or screw (MIL-S-7742) and MIL-S-8879 (UNJ controlled radius root) male threaded members. Wood screws have large threads and a smooth shank for pulling two pieces of material together. The table provides two different class of fits, Close Fit and Free Fit. A wide variety of standard steel bar sizes options are available to you, such as aisi, astm, and jis. Coarse Thread Series (UNC/UNRC) is the most common designation for general application bolts and nuts. This U-bolt is UNC thread. Along with the two different measurement standards (metric and SAE), you also have to consider what size drive you're using. of Size UNC UNF Inches Inches Inches Full Thread Tap Drill 10 8 - 1. U Bolt Guides Nuts, Bolts, Washers. 9 a - 325m type 1 or 2 a - 325m type metric english 3 (mm) (inches) hole diam (mm) english - astm grade specified a - 449 type 1 a - 354 grade bd. commercial products such as machine screws, bolts, nuts, and studs for most interchangeable equipment parts and structural applications. The diameter refers to the major diameter, or outside edge, of the threads. (where D is the nominal screw size in inches) are not subject to tensile testing. The torque on a bolt or nut must be sufficient to create a preload that is greater then the load to be carried. Page 1 of 12 API SPEC 6A, 16A, 17D AND MSS FLANGE GASKET, BOLT AND TORQUE REFERENCE CHART TRADEMARK REG. com ALLOWANCE The prescribed difference between the design size (maximum material) and the basic size. 6 mm or (27/64). nutandboltfactory. One is missing from the frame and I need 2 new ones to fit the new pegs. A change of three AWG sizes. Weight Per 100 Part No. This calculator was developed by using the charts which are given in the ASME B18. Hcd = Hole circle diameter d = Diameter of bolt holes. The length shown includes the height of the Raised Face in all cases. This means that the reduced notch effect prevents the bolt head from spinning. These thread sizes and classes represent bolts and screws, as well, as other standard external threads. com ¥ [email protected] Metric bolts are sized according to diameter, distance or spacing (in millimeters) between threads and length. Indicates suggested shaft sizes SPINE Spine of arrow size shown (static) MODEL Designates arrow model WEIGHT Listed in grains per inch BEMAN SELECTION CHART ADJUSTMENTS The Easton Hunting chart is based on a Bow Speed Rating of 301-340 FPS and a 100 grain point if your set-up is different please follow these steps. metric round u bolt kit mild steel (incl. 1/4” GAUGE mm² STANDARD WIRE mm² DIA. Engines supplied for the. In the nineteenth century, manufacturers needing fasteners would devise their own systems. Material U Bolt Carbon Steel Stainless Steel Nuts Surface Finish U Bolt Hot Dipped Galvanised (refer to General Notes) Mill/Plain Nuts. 4 Quality, certificates Routine testing This inspection is carried out on every motor. Television manufacturers use two different standards when designing the backs of their TVs to allow them to be mounted. NEMA Motor Dimensions - Reference Chart * a ft e r l e t t e r i n d i c a t e s t h e n u m b e r i s a n app r o x i m a te v a l ue. Common Fasteners: Anchors, Bolts, Screws & Nails Nail Size Chart: Expansion Bolt, often called the Molly bolt, for Hollow Walss (plaster board) Toggle Bolt for Hollow Walls Expansion Shield for Masonry Fiber Anchor for Masonry Wood Screw Heads Shank by Gauge, Length in Inches Types: Flat Head Round Head Oval Head Phillips Lag Head Fillister. Marshall St. Builder supplies manifold and appropriate air filter or velocity stack. To view the size tolerances for the o-rings we sell, please refer to either the AS568 size chart for American Standard Sizes, or our Metric O-Ring Tolerances page for all. GFC Engineering & Testing Center 1524 East 14 Mile Road • Madison Heights, MI 48071 • 248-307-0567 • www. 127B Split Lockwashers 128 Curved Spring Lockwashers 267 4759/1 Tolerance Values for Metric Fasteners 315 Malleable Cast Wing Nuts 439B 4035 Hex Jam Nuts 433 7092 Flat Washers, Small O. INSERTATM PRODUCTS, I STANDARD. size tank m intended to ordering, fa to prohibit P purchasing other than t www. 39 LG is the maximum grip length and is the distance from the bearing surface to the first complete thread. • 4079 Pepin Ave. Use the Mudge Fasteners bolt head size chart to determine the head size, and wrench or socket size required, for any hex bolt or lag screw you use. PART THREAD HEXAGON HEAD SCREWS # 931 - DIN & ISO DIMENSIONS Ref: DIN 931 - Part 1 & 2 1987 Standard Part 1 contains specifications for hexagon head bolts with metric screw thread from M 1. Proof Loads and tensile strengths are computed by multiplying the proof load stresses and tensile strengths stresses by the stress area of the thread. A490 Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Mini-mum Tensile Strength M253 (discontinued) A563 Standard Specification for Carbon and Alloy Steel Nuts M291 (discontinued) F436 Standard Specification for Hardened Steel Washers M293 (discontinued) F1554 Standard Specification for Anchor Bolts, Steel, 36, 55,. As immorally as the. 9 grade have a maximum torque value of 12 foot-pounds. 2 nuts) hot dip galvanised part a nominal bore w l t pack pack wgt (kg) kurmsgcm100021 m10 15 21 65 40 50 4. Patent 38,119 for his invention on April 7, 1863. 1641-B 1652-B 1680-B 1637-B 1636-B 1911-B • Special tapered drive threads reshape the material in an untapped hole to provide a leakproof seal. fastener or stud. bar size designa-tion diameter in inches est. • A is the gross cross-section of the bolt • f ub is the ultimate tensile strength of the bolt • γ M2 = 1. ASTM A325 is an ASTM (American Society of the International Association for Testing and Materials) International standard for heavy hex structural bolts. larger sizes available mesh/tie wire— inquire redi-bolt/threaded rod— inquire half oval/half round— inquire 1 2 formed sections. A car mechanic will use a large range of wrench sizes while someone who works on bicycles or farming equipment may only use a small number of sizes. If higher property class fasteners are used, these should only be tightened to the strength of the original. Unified Hexagon Bolts / Sets - UNC 7. (where D is the nominal screw size in inches) are not subject to tensile testing. Sizes shown in highlighted are preferred. Standard Bolt Sizes Chart Pdf.