Repute Steel & Engineering Company is a leading manufacturer and exporter of premium Duplex & Super Duplex Fasteners in India. Our fasteners are engineered to deliver exceptional corrosion resistance, strength, and durability, making them ideal for demanding applications in marine, offshore, and chemical environments.
Standard | ASTM / ASME / BS / DIN / JIS / BS EN ISO / IS |
Material | Duplex & Super Duplex Stainless Steel (e.g., UNS S31803, UNS S32750) |
Size Range | M6 to M100 in metric series, ¼” to 4” in imperial. |
Strength Grades | Typically higher than standard stainless steel grades (e.g., 1.4462, 1.4501) |
Head Styles | Hexagonal, square, slotted, Phillips, Torx, and more. |
Thread Types | Coarse, fine, metric, UNC, UNF, and more. |
Finishes | Bare, galvanized (hot-dip or electro), zinc-plated, cadmium-plated, powder-coated, and more. |
Our Duplex & Super Duplex Fasteners are engineered to provide exceptional corrosion resistance and mechanical properties, making them ideal for applications in harsh environments such as marine, offshore, chemical processing, and pulp and paper industries.
ASTM / ASME A 193 B 8 ( 304 )
B 8C ( SS 347 )
B 8M ( SS 316 )
B 8 T( SS 321 ), A 2 , A 4 // ASTM / ASME A 194 B 8 ( 304 ) , B 8C ( SS 347 ) ,B 8M ( SS 316 )
,B 8T ( SS 321 )
AISI 202, 304, 304L, 316, 316L, 310, 410, 420 Etc.
: 4.6, 5.6, 6.6, 8.8, 10.9 & 12.9 / 'R', 'S', 'T' Conditions. .
ASTM / ASME A 193 B 6, B 7/ B 7M , B 16// ASTM / ASME A 194 GR. 2 , 2 HM , 2H , GR 6 , B 7 , B
7M.
Bare Condition, Galvanized, Phosphetised, Cadmium Plated,
ASTM / ASME SB 160 UNS 2200 ( NICKEL 200 ) / UNS 2201 (NICKEL 201 )
ASTM / ASME SB 164 UNS 4400 (MONEL 400 )
ASTM / ASME SB 425 UNS 8825 (INCONEL 825)
ASTM / ASME SB 166 UNS 6600 (INCONEL 600 ) / UNS 6601 ( INCONEL 601 )
ASTM / ASME SB 446 UNS 6625 (INCONEL 625)
ASTM / ASME SB 574 UNS 10276 ( HASTELLOY C 276 )
ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 ).