Value Collection 3BWLC910 Split Lock Washer 5/8 in

Product Description

The VALUE COLLECTION 3BWLC910 is a silicon bronze split lock washer sized for 5/8 inch screws. Split lock washers are installed under a fastener nut or bolt head to resist loosening caused by vibration and torque relaxation. The helical split design bites into both the fastener bearing surface and the mating material, maintaining clamp load in service. Silicon bronze construction provides strong corrosion resistance in marine, coastal, and wet environments where steel hardware is prone to rust. This washer conforms to ASME B18.21.1 and is used by plumbers, marine technicians, electricians, and mechanical contractors working with non-ferrous fastener assemblies.

This washer is suited for residential and commercial applications where galvanic compatibility with bronze or copper fasteners is required. Typical install scenarios include marine hardware, plumbing fixture mounting, electrical enclosure assembly, and any application where corrosion resistance and vibration resistance are both needed. The 5/8 inch screw size fits standard 5/8 inch fasteners across a wide range of structural and mechanical connections.

Key Features

• Silicon bronze material resists corrosion in marine, coastal, and wet environments
• Split lock design maintains clamp load under vibration and thermal cycling
• Conforms to ASME B18.21.1 fastener standard
• Inside diameter range of 0.635 to 0.65 inches accommodates standard 5/8 inch screw shanks
• Outside diameter range of 1.079 to 1.093 inches provides broad bearing surface
• 0.156 inches thick for consistent spring action and load distribution

Compatibility

Designed for use with 5/8 inch screws and bolts in applications requiring an ASME B18.21.1 compliant split lock washer in silicon bronze.

Installation Notes

Install the split lock washer between the fastener head or nut and the mating surface before final torque is applied. Ensure the mating surface and fastener threads are clean and free of debris prior to assembly. Silicon bronze is a non-ferrous material - avoid mixing with incompatible metals in assemblies where galvanic corrosion is a concern. No special tools are required beyond standard hand or power fastening equipment appropriate for the application.