Hex Flange Nuts

Hex Flange Nuts

Category : Nuts

Flange Nuts are a type of nuts with hex profile body and a large flange like base at one end that acts as a integrated, non spinning washer. This flange washer is used to distribute pressure of the nut over a greater surface area and also ensures that the nut stays tight. Flange nuts are unidirectional fasteners that can be used in only one direction.

The flange (washer) can be plain or serrated. Flange nuts are commonly used in manufacturing assembly lines where operations are speeded by using a single fastener instead of a nut and washer.


Sizes and Threads

Forming : Hot & Cold Forged
Size : M4 to M24 in Metric, 3/16" to 2" in Imperial
Threads : UNC, UNF, ISO, BSW & ACME.
Standards : DIN, ASME, ISO & IS.

Dimension Standards

DIN 917, DIN 1587

Manufacturing Grades (Heavy Hex)

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 A194 Grade 8, 8M, AISI 304, AISI 316, EN 3506-2 A2, A4, Monel 400, Hastelloy C276, Duplex 2205, UNS S32760, Inconel 718, etc.

Compatibility (Heavy Hex)

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