7/16" Split Lock Washer Plain Finish

Regular Split Lock Washer with Plain Finish – Classic Tension-Locking Power for Fractional-Sized Fasteners

When you need dependable resistance against loosening in standard Fractional-sized fastener assemblies, the Regular Split Lock Washer with Plain Finish offers time-tested performance at an economical value. This washer is designed to prevent nuts and bolts from vibrating loose under stress, making it an essential component in a wide variety of general-purpose mechanical and structural applications.

Made from low carbon or hardened steel, this lock washer features a helical split design that applies spring tension to the fastener. When tightened, it digs slightly into the mating surfaces—creating friction and resisting rotation. The plain finish gives you raw, untreated steel, ideal for applications where coatings are unnecessary or where metal-to-metal conductivity is a must, such as in electrical grounding systems.

Fractional sizing makes these washers fully compatible with imperial standard fasteners, commonly used in North American manufacturing, maintenance, and construction. From light-duty household repairs to industrial-grade machinery, the Regular Split Lock Washer remains one of the simplest yet most effective ways to secure bolted connections.

Specifications:

• Material: Low carbon or hardened steel

• Finish: Plain (uncoated, no corrosion protection)

• Design: Split helical shape for locking tension

• Sizes: Fractional sizes available (No. 6 through 1-1/2")

• Standard Compliance: ASME B18.21.1

Applications:

• General maintenance and repair operations (MRO)

• Machinery and equipment fastening

• Automotive engine and body assemblies

• Construction hardware and bracing

• Electrical systems requiring grounding capability

The Regular Split Lock Washer with Plain Finish is a reliable go-to for locking integrity without the frills—ideal for technicians and builders who value function, simplicity, and proven performance.