| Standards | Specification |
|---|---|
| ASTM A193/A193M | Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service |
| ASTM A194/A194M | Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both |
| ASTM A325 | Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength |
| ASTM A320 | Specification for Alloy-Steel Bolting Materials for Low-Temperature Service |
| ASTM A568 | Standard Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for |
| Class 4.8 | Low or medium carbon steel; fully or partially annealed |
| Class 5.8 | Low or medium carbon steel; cold worked |
| Class 8.8 | Medium carbon steel; quench and tempered |
| Class 10.9 | Alloy steel; quench and tempered |
| Class 12.9 | Alloy steel; quench and tempered |
| AISI: SS 304/316 | Applications: food and pharmaceutical processing equipment, marine exterior trim, surgical implants, and industrial equipment |
