#4 Spring Lock Washers

316 Stainless Steel Washers

These #4 spring lock washers are designed to prevent nuts and bolts from loosening due to vibration and torque. The #4 size indicates compatibility with #4 diameter fasteners. They are commonly used in mechanical assemblies to maintain joint integrity.

Specifications

Size	#4

About washers

#4 Spring Lock Washers is listed under Washers, flat, split lock, tooth, belleville and structural washers. Washers are thin, flat plates with a central hole, primarily used to distribute the load of a threaded fastener, prevent loosening, or provide spacing. Flat washers, such as those conforming to ASME B18.21.1 or DIN 125, increase the bearing surface area, reducing the risk of material deformation under the fastener head or nut.

Compare this against other washers, or search the full index for equivalents from other manufacturers.