Stud Bolt / Nut
Stud Bolt / Nut
Stud bolts for flanges consist of a fully threaded steel rod and two heavy hexagonal steel nuts. Stud bolts are inserted in the flange holes and tightened to seal a flanged joint. The number, the length, the diameter of the stud bolts required for a flanged connection depend on the flanges type, diameter, and rating. Stud bolts are available in multiple diameters and lengths combinations, metric and imperial, and in a variety of materials from carbon steel to alloy, stainless and nickel alloys.
Common grades are: ASTM A193 B7, L7, B8, B8M, B16.
RANGE |
TYPES |
STANDARDS |
GRADE |
| 1/2”- 1 1/4” | Carbon Steel | A193, A307, A320, A194 | B6, B7, B7M, B8, B8M, B8T, B8C B16, L7, L7M, L43, 2H, 2HM |
| 1/2”- 1 1/4” | Alloy Steel | A193, A194 | B6, B7, B7M, B8, B8M, B8T, B8C B16, L7, L7M, L43, 2H, 2HM |
| 1/2”- 1 1/4” | Stainless Steel | A193, A194 | 302, 304, 304L, 316, 316L, 317, 317L, 321, 347, 410, 420, 904L |
RANGE |
TYPES |
GRADE |
| 1/2”- 1 1/4” | Duplex Steel | UNS S31803 UNS S32205 |
| 1/2”- 1 1/4” | Super Duplex Steel | UNS S32750, UNS S32760 |