Value Collection 99725 Split Lock Washer 9/16 in Grade 8

Product Description

The VALUE COLLECTION 99725 is a Grade 8 steel split lock washer sized for 9/16 inch screws and bolts. Split lock washers are used to resist loosening caused by vibration and torque relaxation in bolted assemblies. This washer features an uncoated finish and is manufactured to inch-system dimensional standards. The inside diameter ranges from 0.564 to 0.574 inches, the maximum outside diameter is 0.965 inches, and the thickness is 0.141 inches. Grade 8 material designation indicates high-strength steel suitable for demanding structural and mechanical fastening applications. Installation is performed by maintenance technicians, millwrights, pipefitters, electricians, and other trades working with bolted connections.

This split lock washer is used in a wide range of industrial, commercial, and trade applications where a 9/16 inch fastener requires added resistance to vibration-induced loosening. Typical install scenarios include mechanical equipment mounting, panel and enclosure fastening, structural steel connections, and piping support hardware. The uncoated steel finish is appropriate for dry or protected environments. Each package contains one washer, with a minimum order quantity of 25 pieces.

Key Features

• Grade 8 high-strength steel construction for demanding bolted assemblies
• Split lock design resists loosening from vibration and torque relaxation
• Inside diameter range of 0.564 to 0.574 inches fits standard 9/16 inch fasteners
• Maximum outside diameter of 0.965 inches
• Thickness of 0.141 inches
• Uncoated finish for use in dry or protected environments

Compatibility

Designed as a standard replacement or new-installation split lock washer for 9/16 inch screw and bolt assemblies in mechanical, electrical, plumbing, and structural applications.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final torque is applied. Place the washer on the fastener shank with the split ends oriented to bite into both the fastener bearing surface and the workpiece as torque is applied. Ensure the mating surfaces are clean and free of debris before assembly. Follow applicable mechanical or structural codes for fastener torque requirements specific to the application.