A round head bolt with a square neck under the head and a unified thread pitch.
Designed to keep the bolt from turning when a nut is being tightened. The short neck variety is used in sheet metal where a standard sized neck would create an obstruction.
Diameter:
M12 to M64 up to 1200 MM in Length
Duplex & Super Duplex :
UNS31803,S32750.
Diameter:
M12 to M64 up to 1200 MM in Length
Hastelloy:
Hastelloy C-276, Hastelloy C-22.
Diameter:
M12 to M64 up to 1200 MM in Length
Exotics:
904L, A-286, Alloy20, Alloy50, NitronicAlloys50, Titanium.
Diameter:
M12 to M64 up to 1200 MM in Length
Nickel Alloys :
Inconel600, 601, 625, 718, 750, 800/800H, 825, 925, Monel 400, 405, K-500 & Nickel 200.
Diameter:
M12 to M64 up to 1200 MM in Length