This document provides specifications for FNW B7 stud bolts with Grade 2H heavy hex nuts, including material properties, dimensions, and part numbers.
This product leaflet details the specifications for FNW B7 stud bolt assemblies paired with Grade 2H heavy hex nuts. The studs are manufactured from Chromium-Molybdenum Ferritic Alloy Steel (ASTM A193 Grade B7) and feature full threading, chamfered flat-faced ends, and a tensile strength of 125 KSI minimum. The accompanying nuts are made of Carbon Steel (ASTM A194 Grade 2H) with a single chamfer and bottom washer face.
| Stud Material | Chromium-Molybdenum Ferritic Alloy Steel |
|---|---|
| Stud Tensile Strength | 125 KSI Min. |
| Stud Hardness | 35 HRC Max. |
| Nut Material | Carbon Steel |
| Nut Hardness | C24 to C38 |
| Thread Standard (1" and smaller) | Unified Inch Coarse Series (UNC), Class 2A |
| Thread Standard (1-1/8" and larger) | Unified Inch 8 Thread Series (UN8), Class 2A |
| Stud Standard | ASTM A193 Grade B7 |
| Nut Standard | ASTM A194 Grade 2H |
They are sold in individual sets or box quantities.
MTRs are only available on demand for box quantities.
Studs are marked with 'B7' and nuts are marked with 'HY' (though hex nut marks can vary).