Value Collection 88546577 3/8 in Steel Split Lock Washer 25pk

Product Description

The VALUE COLLECTION 88546577 is a steel split lock washer sized for 3/8 inch screws and fasteners. Split lock washers are placed under a nut or bolt head to resist loosening caused by vibration and torque relaxation. The washer's split profile bites into both the fastener and the mating surface, maintaining clamping force over time. This part has an inside diameter range of 0.382 to 0.393 inches, a maximum outside diameter of 0.553 inches, and a thickness of 0.125 inches. It is supplied uncoated and comes in a pack of 25. Electricians, plumbers, HVAC technicians, and general contractors use split lock washers in everyday mechanical and structural fastening applications.

This washer is suited for residential and commercial maintenance, repair, and installation work where standard 3/8 inch threaded fasteners are used. Typical applications include equipment mounting, panel attachment, pipe support bracketing, and general mechanical assembly. The uncoated steel construction is appropriate for dry or protected indoor environments where bare steel is acceptable. Each package contains 25 washers, making it practical for service trucks and shop inventory.

Key Features

• Sized for 3/8 inch screw thread with an inside diameter of 0.382 to 0.393 inches
• Maximum outside diameter of 0.553 inches for broad surface contact
• 0.125 inch thickness provides consistent spring tension under load
• Uncoated steel construction for standard indoor mechanical fastening
• Split profile resists loosening from vibration and torque relaxation
• Pack of 25 for stocking service kits or shop bins

Compatibility

Designed as a standard split lock washer for use with 3/8 inch screws and bolts in general mechanical, electrical, plumbing, and HVAC fastening applications.

Installation Notes

Place the split lock washer between the fastener head or nut and the mating surface before tightening. Ensure the fastener thread size matches the washer inside diameter before assembly. Follow applicable mechanical and electrical codes, such as NEC requirements for equipment grounding and bonding hardware, when used in electrical panel or equipment mounting applications. Uncoated steel washers should not be used in wet or corrosive environments without additional corrosion protection.