ASTM F594 Stainless Steel Nut | Marine Hexagon Nut

ASTM F594 stainless steel nuts for marine piping and flange connections. Available in 304, 316, and 316L grades with full material traceability. Manufactured per ASTM F594 standard, supplied with EN 10204 3.1 certificates, compliant with marine classifica

DIN 980 All-Metal Lock Nut

sinofastener supplies DIN 980 / ISO 7042 all-metal lock nuts with prevailing torque locking for high-temperature and vibration-prone marine engine room joints. Carbon steel and A4 stainless, M8–M30, suitable where a nylon insert is not appropriate due to

ISO 7090 Hardened Flat Washer for Structural Joints

sinofastener supplies ISO 7090 / ISO 7089 hardened flat washers for high-strength structural bolted joints in hull structure and deck steelwork. Carbon steel hardness class 200HV or 300HV, or A4 stainless, M16–M64, with material certificates on request.n

ISO 4762 Socket Head Cap Screw

ISO 4762 / DIN 912 socket head cap screws are hex-socket driven machine screws for applications requiring high clamping force in confined space. sinofastener supplies socket head cap screws in carbon steel property class 12.9 and stainless A4-80 (316), th

Galvanized Double-End Stud to GB/T 897 (bm=1d)

Galvanized double-end stud to GB/T 897, bm=1d, both ends threaded. Galvanized carbon steel for marine flange and structural connections. Sizes M16–M20 with full-thread design per standard.

Galvanized Hex Nut to GB/T 41 (Product Grade C, Class 4.0)

Galvanized hex nut to GB/T 41, product grade C, property class 4.0. Galvanized carbon steel, matched with GB/T 5780 hex bolts. For cargo hold and marine structural fastening. Sizes M12–M20.

Galvanized Hex Bolt to GB/T 5780 (Product Grade C, Class 4.8)

Galvanized hex bolt to GB/T 5780, product grade C, property class 4.8. Galvanized carbon steel, matched with GB/T 41 hex nut. For cargo hold and marine structural fastening. Sizes M12–M20, threaded lengths per standard.

DIN 766 Stainless Steel Anchor Chain for Boat Anchoring

DIN 766 stainless steel anchor chain in 316 or 304 grade, mirror polished calibrated short-link chain for yacht and boat anchor windlass systems. Available in link diameters from 4mm to 16mm. Designed for saltwater anchoring applications with reliable cor