Value Collection 88548664 Split Lock Washer 7/16 in 25 Pack

Product Description

The VALUE COLLECTION 88548664 is an alloy steel split lock washer sized for 7/16 inch fasteners. Split lock washers apply spring tension under a fastener head or nut, resisting loosening caused by vibration, thermal cycling, or dynamic loads. This washer ships uncoated with a bright finish, making it suitable for indoor mechanical assemblies, junction box hardware, equipment panels, and general trade fastening applications. Each package contains 25 washers. The inside diameter ranges from 0.443 to 0.455 inches and the maximum outside diameter measures 0.647 inches, with a thickness of 0.14 inches. Installed by electricians, HVAC technicians, plumbers, and general mechanical contractors wherever vibration-resistant fastening is required.

This split lock washer is suited for residential and light commercial mechanical and electrical installations. Typical applications include securing conduit fittings, equipment mounting hardware, panel components, and structural fasteners in HVAC, plumbing, and electrical work. The bright uncoated finish is appropriate for dry or protected indoor environments. The 25-piece pack supports single-job use or replenishment of a service vehicle parts inventory.

Key Features

• Alloy steel construction provides hardness and spring tension needed for reliable locking action
• 7/16 inch screw size fits standard fasteners in mechanical and electrical trade applications
• Inside diameter range of 0.443 to 0.455 inches ensures proper seating on the fastener shank
• Maximum outside diameter of 0.647 inches and thickness of 0.14 inches conform to standard split lock washer geometry
• Bright uncoated finish — no coating to chip or interfere with torque readings
• Pack of 25 washers per package

Compatibility

Designed as an OEM-style replacement or standard component for use with 7/16 inch threaded fasteners in mechanical, electrical, HVAC, and plumbing assemblies requiring vibration-resistant hardware.

Installation Notes

Split lock washers are installed by placing the washer on the fastener shank between the nut or bolt head and the mating surface before final tightening. De-energize electrical systems and depressurize or isolate mechanical systems before servicing any fastened connections. Use calibrated hand tools appropriate to the fastener grade — do not over-torque, as excessive force can flatten the split and eliminate locking function. Follow applicable codes including NEC for electrical assemblies and IFGC or IPC for mechanical system hardware as relevant to the installation type.