Our fasteners comply with a wide range of internationally recognized specifications, ensuring reliability, performance, and safety in every application. We adhere to key standards such as ISO, DIN, ASTM, ANSI, SAE, and more, covering everything from material properties to dimensions and testing methods.
Explore our range of Industry Standard fasteners, all crafted and manufactured to the highest quality.
What is an Industry Standard Fastener?
Fastener standards encompass a wide range of elements, including dimensions (with separate standards for inch and metric fasteners), mechanical properties, classifications, materials, and usage. For instance, ASTM categorizes their standards into six distinct groups, providing a comprehensive understanding of the various fastener characteristics that are often standardized by other organizations.
These categories include:
Specifications: Detail the physical characteristics such as dimensions and tolerances, as well as chemical properties like material composition.
Test Methods: Outline how to test specific properties, such as machinability, and the desired outcomes of those tests.
Practice: Provide procedural instructions for the proper use of fasteners.
Guide: Offer advice and considerations for selecting the appropriate fastener.
Classification: Present information about the fastener without prescribing specific actions.
Terminology: Include definitions, symbols, and other identifying factors related to fasteners.
Some of the most common organizations that govern fastener standards are listed below, click on each tab for individual standards categories:
| ASME – American Society of Mechanical Engineers |
| 1. ASME B18.2.1 – Square and Hex Bolts and Screws |
| 2. ASME B18.2.2 – Square and Hex Nuts |
| 3. ASME B18.3 – Socket Head Cap Screws |
| 4. ASME B18.6.1 – Wood Screws |
| 5. ASME B18.6.3 – Lag Screws |
| 6. ASME B18.8.1 – Lock Washers |
| 7. ASME B18.8.2 – External and Internal Tooth Lock Washers |
| 8. ASME B18.12 – Knurled Thumb Screws |
| 9. ASME B18.13 – Machine Screws (Plain and Self-Tapping) |
| 10. ASME B18.15 – Eye Bolts, Screw Eyes, and Eye Nuts |
| 11. ASME B18.18.1 – Square Washers |
| 12. ASME B18.21.1 – Plain Washers |
| 13. ASME B18.22.1 – Plain and Lock Washers (Split and Solid) |
| 14. ASME B18.24 – Thread Rolling Screws |
| 15. ASME B18.30.1 – Rivets (Solid, Blind, and Tubular) |
| 16. ASME B18.16.1 – Studs, Weld Studs, and Stud Assemblies |
| 17. ASME B18.6.2 – Sheet Metal Screws |
| 18. ASME B18.10 – Fasteners for Aerospace Applications |
| 19. ASME B18.2.5 – Bolts, Carriage, and Tee |
| 20. ASME B18.26.1 – Fasteners for Aerospace Applications |
| ASTM – American Society for Testing and Materials |
| ASTM A193 – Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service |
| ASTM A194 – Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature Service |
| ASTM A325 – Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength |
| ASTM A354 – Standard Specification for Quenched and Tempered Steel Bolts, Studs, and Other Externally Threaded Fasteners |
| ASTM A307 – Standard Specification for Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength |
| ASTM A320 – Standard Specification for Alloy Steel Bolting for Low-Temperature Service |
| ASTM A449 – Standard Specification for Quenched and Tempered Steel Bolts and Studs |
| ASTM F568M – Standard Specification for Carbon and Alloy Steel Nuts for Bolts for Low-Temperature Service |
| ASTM F593 – Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs |
| ASTM F594 – Standard Specification for Stainless Steel Nuts |
| ASTM F436 – Standard Specification for Hardened Steel Washers |
| ASTM F835 – Standard Specification for Nonferrous Nuts |
| ASTM A194/A194M – Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature Service |
| ASTM A193/A193M – Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service |
| ASTM A193 Grade B7 – Specification for Alloy-Steel Bolting Materials for High-Temperature Service (Grade B7) |
| ASTM A325M – Standard Specification for Structural Bolts (Metric) |
| ASTM A490 – Standard Specification for Heat-Treated Steel Structural Bolts |
| ASTM F835 – Standard Specification for Nonferrous Nuts |
| ASTM F1285 – Standard Specification for Copper Alloy Screws and Bolts |
| ASTM A574 – Standard Specification for Alloy Steel Socket-Head Cap Screws |
| ASTM A394 – Standard Specification for Carbon Steel Bolts, Hex Cap Screws, and Studs for Use in High-Strength, High-Pressure, and High-Temperature Service |
| ASTM A563 – Standard Specification for Carbon and Alloy Steel Nuts |
| ANSI – American National Standards Institute |
| 1. ANSI B18.2.1 – Square and Hex Bolts and Screws |
| 2. ANSI B18.2.2 – Square and Hex Nuts |
| 3. ANSI B18.3 – Socket Head Cap Screws |
| 4. ANSI B18.6.1 – Wood Screws |
| 5. ANSI B18.6.3 – Lag Screws |
| 6. ANSI B18.8.1 – Lock Washers |
| 7. ANSI B18.8.2 – External and Internal Tooth Lock Washers |
| 8. ANSI B18.12 – Knurled Thumb Screws |
| 9. ANSI B18.13 – Machine Screws (Plain and Self-Tapping) |
| 10. ANSI B18.15 – Eye Bolts, Screw Eyes, and Eye Nuts |
| 11. ANSI B18.18.1 – Square Washers |
| 12. ANSI/ASME B18.2.3.1M – Metric Bolts, Hexagon Head |
| 13. ANSI B18.2.5 – Bolts, Carriage, and Tee |
| 14. ANSI B18.6.2 – Sheet Metal Screws |
| 15. ANSI B18.19 – Anchors and Inserts |
| 16. ANSI B18.21.1 – Plain Washers |
| 17. ANSI B18.22.1 – Plain and Lock Washers (Split and Solid) |
| 18. ANSI B18.26.1 – Fasteners for Aerospace Applications |
| 19. ANSI B18.24 – Thread Rolling Screws |
| 20. ANSI B18.30.1 – Rivets (Solid, Blind, and Tubular) |
| SAE – Society of Automotive Engineers |
| 1. SAE J429 – Mechanical and Material Requirements for Externally Threaded Fasteners |
| 2. SAE J995 – Mechanical Properties of Steel Fasteners (Grade 5 and Grade 8) |
| 3. SAE J1065 – Steel Bolt, Nut, and Washer Assemblies (Grade 5, Grade 8) |
| 4. SAE J1211 – Bolts, Screws, and Studs – Threaded for Automotive and Allied Applications |
| 5. SAE J1383 – Nut, Hexagon, Heavy Type, for High-Strength Fasteners |
| 6. SAE J1704 – Automotive Brake Fluid (for fastener applications in braking systems) |
| 7. SAE J1530 – Automotive Bolts, Hexagon Head, with Coarse or Fine Thread |
| 8. SAE J2368 – Fastener Design Guidelines for Automotive Applications |
| 9. SAE J2275 – Standard for Metric Fasteners for Use in Automotive Applications |
| 10. SAE J3059 – Performance Requirements for Automotive Fasteners |
| 11. SAE J434 – Steel Fasteners and Fastener Assemblies (Grades and Specifications) |
| 12. SAE J925 – Zinc Plating and Coating for Fasteners |
| 13. SAE J970 – Automotive Studs and Bolts for Use in Engine and Chassis Applications |
| 14. SAE J994 – Performance Requirements for Locking Fasteners (Self-Locking and Non-Locking Types) |
| 15. SAE J2895 – Threaded Fasteners for Automotive Applications (Metric Threads) |
| 16. SAE J1968 – Fasteners for Automotive Engine Parts |
| 17. SAE J2277 – Automotive Fasteners—Torque Requirements |
| 18. SAE J2469 – Performance Standards for High-Strength Fasteners in Automotive Applications |
| 19. SAE J1580 – Fasteners, Internal Thread – Specification for Internal Thread Form |
| 20. SAE J907 – Design of Threaded Fasteners for Automotive Applications |
| IFI – Industrial Fasteners Institute |
| 1. IFI 100 – General Specifications for Fasteners |
| 2. IFI 101 – Fastener Dimensions and Tolerances |
| 3. IFI 102 – Mechanical Properties of Fasteners |
| 4. IFI 103 – Fastener Coatings and Plating |
| 5. IFI 104 – Threaded Fastener Measurement |
| 6. IFI 105 – Fastener Packaging and Identification |
| 7. IFI 106 – Fastener Testing Methods |
| 8. IFI 107 – Fastener Surface Finish and Quality |
| 9. IFI 108 – Specifications for Nonferrous Fasteners |
| 10. IFI 109 – Corrosion Resistance and Protection for Fasteners |
| 11. IFI 110 – Materials and Processes for Stainless Steel Fasteners |
| 12. IFI 111 – Fasteners for Automotive Applications |
| 13. IFI 112 – High Strength Fasteners |
| 14. IFI 113 – Fasteners for Aerospace and Defense Applications |
| 15. IFI 114 – Heat Treatment of Fasteners |
| 16. IFI 115 – Fatigue Resistance of Fasteners |
| 17. IFI 116 – Fasteners for High-Temperature Applications |
| 18. IFI 117 – Threaded Fasteners for Structural Applications |
| 19. IFI 118 – Stress Corrosion Cracking of Fasteners |
| 20. IFI 119 – Fasteners for High-Vibration Environments |
| MS – Military Specification, MIL-SPEC, MIL-STD, & NAS/NASM |
| MS20004 – Cotter Pin (Steel, Cadmium Plated) |
| MS21042 – Aircraft Nut (Self-Locking, Hexagon) |
| MS35655 – Rivet (Solid, Aluminum Alloy) |
| MS27183 – Bolt (Hexagon Head, Cadmium Plated) |
| MS9120 – Washer (Flat, Steel, Zinc Plated) |
| MS35638 – Pin (Cotter, Steel) |
| MS27039 – Clevis Pin (Corrosion-Resistant Steel) |
| MS24693 – Bolt (Hexagon, Shoulder) |
| MS51540 – Nut (Wing, Hexagon, Steel) |
| MS21044 – Nut (Self-Locking, Steel) |
| MS27472 – Stud (Threaded, Steel) |
| MS27126 – Screw (Socket Head Cap, Steel) |
| MS21140 – Washer (Lock, Internal Tooth) |
| MS22807 – Nut (Hexagon, Steel, Self-Locking) |
| MS3476 – Rivet (Flush, Steel) |
| MS24694 – Bolt (Hexagon Head, Plain) |
| MS33737 – Pin (Cotter, Stainless Steel) |
| MS35668 – Pin (Dowel, Stainless Steel) |
| MS51352 – Nut (Hexagon, Steel, Unplated) |
| MS20002 – Clevis Pin (Steel, Zinc Plated) |
| MS21051 – Aircraft Nut (Hexagon, Self-Locking) |
| MS25984 – Nut (Hexagon, Steel, Self-Locking) |
| MS16996 – Bolt (Double Ended, Hexagon) |
| MS21919 – Washer (Lock, External Tooth) |
| MS23665 – Pin (Cotter, Zinc Plated) |
| MS28775 – Bolt (Hexagon, Unplated) |
| MS29561 – Nut (Wing, Corrosion-Resistant Steel) |
| MS28780 – Washer (Lock, External Tooth) |
| MS22066 – Screw (Machine, Steel, Cadmium Plated) |
| MS3700 – Rivet (Pop, Steel) |
| MS20137 – Bolt (Shoulder, Steel) |
| MS51844 – Nut (Hexagon, Zinc Plated) |
| MS29051 – Nut (Wing, Aluminum Alloy) |
| MS20826 – Nut (Self-Locking, Stainless Steel) |
| MS30601 – Pin (Cotter, Steel) |
| MS24695 – Bolt (Shoulder, Stainless Steel) |
| MS20132 – Screw (Hexagon Head, Steel) |
| MS22044 – Screw (Cap, Steel) |
| MS27182 – Bolt (Hexagon, Steel, Zinc Plated) |
| MS26932 – Nut (Wing, Steel) |
| MS22759 – Pin (Clevis, Steel) |
| MS20470 – Rivet (Flush, Steel) |
| MS28776 – Bolt (Hexagon, Steel) |
| MS51842 – Nut (Wing, Steel) |
| MS22267 – Washer (Flat, Stainless Steel) |
| MS20003 – Clevis Pin (Corrosion-Resistant Steel) |
| MS21488 – Washer (Lock, External Tooth) |
| MS20659 – Nut (Wing, Steel, Self-Locking) |
| MS20744 – Bolt (Hexagon, Zinc Plated) |
| MS20893 – Nut (Self-Locking, Steel, Cadmium Plated) |
| DIN – Deutsches Institut für Normung |
| DIN 931 – Hexagon Head Bolts with Full Thread |
| DIN 933 – Hexagon Head Bolts with Part Thread |
| DIN 934 – Hexagon Nuts |
| DIN 935 – Jam Nuts |
| DIN 936 – Hexagon Thin Nuts |
| DIN 937 – Square Nuts |
| DIN 938 – Hexagon Flange Nuts |
| DIN 939 – Lock Nuts (Self-Locking) |
| DIN 940 – Wing Nuts |
| DIN 941 – Slotted Nuts |
| DIN 942 – Castle Nuts |
| DIN 947 – Cap Nuts |
| DIN 961 – Heavy Hexagon Bolts |
| DIN 962 – Heavy Hexagon Screws |
| DIN 963 – Countersunk Head Screws |
| DIN 964 – Pan Head Screws |
| DIN 965 – Round Head Screws |
| DIN 966 – Raised Countersunk Head Screws |
| DIN 975 – Threaded Rods |
| DIN 976 – Threaded Bars with One End Threaded |
| DIN 980 – Eye Bolts |
| DIN 982 – Eye Nuts |
| DIN 983 – Connecting Nuts |
| DIN 984 – Turnbuckles and Eye Bolts |
| DIN 985 – Locking Nuts (Nylon Insert) |
| DIN 988 – Plain Washers |
| DIN 127 – Lock Washers (Spring Type) |
| DIN 128 – Lock Washers (Flat Type) |
| DIN 1481 – Split Pins (Cotter Pins) |
| DIN 1482 – Grooved Pins |
| DIN 1483 – Roll Pins |
| DIN 1541 – Tapping Screws |
| DIN 1542 – Self-Tapping Screws with Flat Head |
| DIN 1641 – Bolts with Square Head |
| DIN 1661 – Socket Head Screws |
| DIN 1671 – Cross Recessed Screws |
| DIN 1672 – Pozidriv Screws |
| DIN 1673 – Countersunk Screws |
| DIN 1770 – U-Bolts |
| DIN 1790 – Wing Bolts |
| DIN 1836 – High Strength Bolts for Structural Steel |
| DIN 1860 – Grub Screws |
| DIN 1880 – Set Screws |
| DIN 1881 – Threaded Inserts for Metal |
| DIN 1926 – Socket Screws |
| DIN 6331 – Dowel Pins |
| DIN 6921 – Hexagon Flange Screws |
| DIN 6923 – Hexagon Flange Nuts |
| DIN 7380 – Pan Head Screws with Torx Drive |
| DIN 7984 – Flat Countersunk Screws |
| DIN 912 – Hexagon Socket Head Cap Screws |
| DIN 6912 – Countersunk Socket Head Screws |
| DIN 439 – Wing Nuts |
| DIN 125 – Flat Washers |
| DIN 9021 – Flat Washers (Large Diameter) |
| DIN 1273 – Lock Washers (Spring Type) |
| DIN 7980 – Cross Recessed Countersunk Screws |
| DIN 6325 – Taper Pins (With or Without Keyways) |