Stud Bolts
First Distributors stocks B7 stud bolts from 1/2” - 2” diameter in: Plain (black) finish, Teflon Blue, and Cad Plating. We also stock B8 and B8M stud bolts from ¼ - 1-1/2”. We can also provide stud bolts made from different materials (B8, B8M, Alloy 20, Monel, Hastelloy, Inconel, Titanium, etc), as well as different coatings, although this may be subject to a longer leadtime.
Size Range: | 1/4" to 2" Diameter (Metric & Standard) |
Types: | All Thread, Double End, Single End, & Specials |
Carbon Steel: | B7, B7M, B16, L7, L7M, L43 |
Stainless Steel: | B8, B8 CL2, B8M, B8M CL2 |
Exotic Alloys: | A20, 17-4PH, Monel, Inconel, Hastelloy, Duplex |
Coatings: | Black Oxide, Cadmium, Galvanized (hot dipped & mechanical), Teflon, Zinc, as well as Other options upon Request. |

Related Hardware
This chart shows the nuts and washers that accompany the stud bolts outlined here. These items are required for proper installation.
Stud Bolt Grade | Nuts | Washers |
---|---|---|
L7 | A194 Grade 4 or 7 | F436 |
L43 | A194 Grade 4 or 7 | F436 |
B8 Class 1 | A194 Grade 8 | SS304 |
B8M Class 1 | A194 Grade 8M | SS316 |
B8 Class 2 | A194 Grade 8 | SS304 |
B8M Class 2 | A194 Grade 8M | SS316 |
B7 | A194 Grade 2H | F436 |
B7M | A194 Grade 2HM | F436 |
B16 | A194 Grade 4 or Grade 7 | F436 |