| ASTM A354 |
Covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs,and other externally threaded fasteners 4 in. and under in diameter for application at normal atmospheric temperatures, where high strength is required and for limited application at elevated temperature. |
| ASME B18.31.3 |
Covers the general and dimensional data for inch series threaded rods. |
| ASME B1.1 UNC & UNF Class 2A |
Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. |