Value Collection 3BWLC912 Split Lock Washer 3/4 in Silicon Bronze

Product Description

The VALUE COLLECTION 3BWLC912 is a silicon bronze split lock washer sized for 3/4 inch screws and fasteners. Split lock washers apply a spring-like clamping force under a fastener head or nut, resisting loosening caused by vibration and thermal cycling. Silicon bronze construction provides strong corrosion resistance in marine, coastal, and wet environments where steel hardware is unsuitable. This washer carries an inside diameter of 0.753 inches nominal, an outside diameter of 1.264 inches nominal, and a thickness of 0.188 inches. It conforms to ASME B18.21.1, the standard governing helical spring-type lock washers in inch dimensions. Plumbers, marine contractors, and electricians working in corrosive environments are the primary installers.

This washer is suited for use with 3/4 inch threaded fasteners in applications where galvanic compatibility with copper alloy fittings or stainless hardware is required. Typical installations include marine deck hardware, below-grade plumbing connections, electrical panel grounding assemblies, and coastal HVAC equipment mounting where steel fasteners would corrode prematurely. Silicon bronze is electrically conductive and non-sparking, making it appropriate for bonding and grounding applications as well as general mechanical assembly in damp or chemically active environments.

Key Features

• Silicon bronze construction resists corrosion in marine, coastal, and high-moisture environments
• Split lock design applies spring tension to resist fastener loosening under vibration
• Conforms to ASME B18.21.1 for consistent dimensional tolerancing
• Nominal 0.753 inch ID sized for standard 3/4 inch screws and bolts
• Non-sparking alloy suitable for use near flammable materials or in bonding assemblies
• Inch measurement system for compatibility with standard US fastener tooling

Compatibility

Designed for use with 3/4 inch screws and bolts in assemblies requiring a helical spring lock washer per ASME B18.21.1 in the inch measurement system.

Installation Notes

Installation requires no special tooling beyond standard wrenches or sockets appropriate to the mating fastener. Place the washer between the fastener head or nut and the mating surface with the split ends oriented to bite into both surfaces as the fastener is tightened. De-energize and de-pressurize any system before disturbing fastened connections. Do not reuse a washer that has been fully flattened, as it will no longer provide effective locking force.