National Bolt & Nut Corporation Datasheets for Washers

Washers are disks of metal or non-metallic material placed beneath a nut, an axle bearing, or a joint, to relieve friction, prevent leakage, isolate, prevent loosening, or distribute pressure.
Washers: Learn more

Product Name Notes
Custom Washers As an integral part of our full line of fastener products, and critical to any building or structural application, National Bolt & Nut Corporation’s selection of washers is available to...
Beveled Washers BEVELED WASHERS Meeting ANSI B18.2.6 dimensions, our line of beveled washers are constructed from medium carbon steel and then hardened per ASTM F436 specifications. Beveled washers are usually intended to...
Helical Spring Lock Washers HELICAL SPRING LOCK WASHERS Helical spring lock washers possess a hardened bearing surface that allows for more uniform torque control, and harness greater bolt tension per unit of applied torque.
Metric Flat Washers METRIC FLAT WASHERS Metric flat washers are placed under the head of the bolt or nut. These washers distribute pressure evenly between the fastened components while the nut is being...
Metric Helical Lock Washers METRIC LOCK WASHERS National Bolt & Nut's line of premium metric lock washers are designed to help prevent a nut from loosening by placing tension against the nut after tightening.
SAE Flat Washers SAE FLAT WASHERS National Bolt & Nut offers a series of type A, narrow SAE flat washers that meet ANSI B18.22.1 dimensional specifications. Similar in style to USS flat washers,...
Structural Washers STRUCTURAL WASHERS National Bolt & Nut’s line of heavy-duty structural washers are ideal for structural steel fastening applications and are commonly used by the wind turbine and industrial building industries...
USS Flat Washers USS FLAT WASHERS One of the most common types of flat washers, National Bolt & Nut’s Type A wide series USS flat washers possess a flat bearing surface underneath the...