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Duplex Steel bolts Manufacturers, Suppliers

duplex 2205 boltsTorqBolt is a Manufacture,Stockist of Hex Bolts & Stud Bolts in Duplex & Super Duplex Stainless Steel. We provide Full Threads/Half Threads configuration with UNC/UNF Threading type. We have ready stock material in Duplex Steel Fasteners in grades like Duplex 2205, Duplex 2304, Super Duplex 2507 etc. We also manufacture other rare Duplex grades upon request.

Size : M4 upto M72 & Above

For Quick Quote & Information on Duplex Steel Bolts, Please contact our Sales team


Duplex Steel Bolt Type's


Duplex Steel Bolt Coatings


Duplex Stainless Steel Equivalent Grades & Designations.

Duplex 2205 En 1.4462 UNS S31803
Duplex 2304 En 1.4362 UNS S32304
Super Duplex 2507 En 1.4501 UNS S32760

ASTM/ASME Specification for Duplex & Super Duplex Grade Bolts

Duplex 2205 ASTM / ASME SA 790 UNS NO S 31803 ASTM / ASME SA 182 F51
Super Duplex 2507 ASTM / ASME SA 790 UNS NO S 32760 ASTM / ASME SA 182 F55

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