Custom
Custom Bolting for Well Head Equipment
Custom Bolts and Specials
Sigma makes custom specialty fasteners for the Leading Petrochemical Valve and Pressure Control Original Equipment manufacturers in the World.
Sigma Fasteners supplies our customers with the highest quality fasteners and bolts.
Our state of the art CNC can produce bolts 3 inches in diameter and handle lengths over 4 feet.
We thread metric, UN, UNC, and UNF send us your thread length and a pitch and we’ll go to work for you.
We manufacture custom bolts and fasteners, in 304 and 316 stainless steel, inconel, hastoloy, ASTM L7M and B7M, B7, L7, ASTM 660, B16, 17-4PH and Nickel alloys.
If you don’t find what you need listed give us a call or send us your print or drawing. We’re sure we can make your custom specialty bolt!
Tap End Stud
Coated Bolts
Custom Bolting to Print
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