Conical Spring Washers

Conical Spring Washers

Conical Spring Washers

Category : Washers

Heavy hex bolts are hex head bolts with heavy profile. The hex and the thickness of the bolt head are considerable larger then standard hex head bolts. Heavy hex head bolts are available in both metric and inch sizes with UN, UNC, UNF, UNEF and ISO metric threads. Heavy hex bolts are produced in high tensile grades, stainless steel and majority of ASTM bolting specifications.


Sizes and Threads

Metric : M6 to M100
Inch/Imperial : 3/8" to 4"
Threads : UN, UNC, UNF, UNEF, ISO Metric and BSW.

Dimension Standards

ASME B18.2.1 (Inch/Imperial), ASME B18.3.6M (Metric), DIN 6914 (Metric).

Manufacturing Grades

High Tensile Grade 8.8, 10.9, 12.9, Stainless Steel, 304, 316, 316ti, 321, 904L, Duplex 2205, S31803, Super Duplex, 2507, S32750, F55, S32760, Zeron 100, Inconel 600, 601, 625, 718, 925, Incoloy 800, 800, 800ht, 825, Hastelloy B2, B3, C22, C276, C2000, X, Monel 400, R405, K500, Titanium Grade 2, 5, 7, 9, 12, 23, Copper Nickel, Silicon Bronze, Aluminum & Phosphor Bronze, Tantalum, etc.

ASTM Specifications

ASTM A193, ASTM A307, ASTM A320, ASTM A325, ASTM A354, ASTM A449, ASTM A453, ASTM A490, ASTM A540, ASTM F593, ASTM A1014, ASTM A1082.

Compatibility paired with

Product / Thread System Heavy Hex Bolts Heavy Hex Nuts Hardened Heavy Washers
Imperial ASME B18.2.1 ASME B18.2.2 ASME B18.21.1
Metric ASME B18.3.6M ASME B18.4.6M ASME B18.22M
Metric DIN 6914 DIN 6915 DIN 6916