Plain Flat Washers

Plain Flat Washers

Plain Flat Washers

Category : Washers

Plain Washers (also called as Flat Washers) are simple circular disc with a center hole for bolt allowance. These flat washers are the most standard choice for most fastening applications. As the name suggests these washers have almost flat surface with perfect grip for the bolting joint.

Plain washers are manufactured in metric and imperial size with standard and heavy thickness for high strength bolting. Flat washers are produced by die punching sheets, plates or strips of required material specification and trimmed for rough edges or sometimes can be machined from bar stock.


Sizes and Threads

Forming : Hot & Cold Punched
Size : M0.6 to M100 in Metric, #0 to 4" in Imperial
Thickness : Standard and Custom
Standards : DIN, ASME, ISO & IS.

Dimension Standards

DIN 125A, DIN 125B, DIN 126, DIN 433, DIN 7349, DIN 9021, ISO 7089, ISO 7090, ISO 7091, ISO 7092, ISO 7093

Manufacturing Grades (Other)

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 F436, ASTM F844, ASTM A36, ASTM A167, ASTM A240, ASTM A283, ASTM A387, ASTM A516, ASTM A572, ASTM A829, ASTM A633, ASTM A656, ASTM B127, ASTM B162, ASTM B171, ASTM B209, ASTM B424, ASTM B463, ASTM B551, ASTM B749, ASTM B755, etc.

Compatibility (Other)

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