Value Collection 99724 Split Lock Washer 1/2 Inch Grade 8

Product Description

The VALUE COLLECTION 99724 is a Grade 8 steel split lock washer sized for 1/2 inch fasteners. Split lock washers are installed under a nut or bolt head to resist loosening caused by vibration and torque relaxation. The helical split design bites into the mating surfaces as the fastener is tightened, maintaining clamp load in demanding mechanical assemblies. This washer is uncoated, making it suitable for applications where a bare steel finish is acceptable. The inside diameter ranges from 0.502 to 0.512 inches and the maximum outside diameter is 0.869 inches, with a thickness of 0.125 inches. Grade 8 designation indicates a high-strength material specification appropriate for heavy-duty fastening applications.

This split lock washer is used in industrial, mechanical, and structural assemblies where 1/2 inch fasteners are subject to vibration or dynamic loading. Typical installation scenarios include machinery mounts, structural steel connections, equipment frames, and heavy equipment maintenance. Electricians, millwrights, pipefitters, and general mechanical trades routinely use split lock washers during equipment assembly and maintenance. The uncoated finish suits indoor or protected environments where corrosion resistance is not a primary requirement.

Key Features

• Grade 8 steel construction for high-strength fastening applications
• Split helical design resists vibration-induced loosening
• Inside diameter range of 0.502 to 0.512 inches fits standard 1/2 inch fasteners
• Maximum outside diameter of 0.869 inches
• Thickness of 0.125 inches
• Uncoated finish — no additional surface treatment

Compatibility

Designed for use with standard 1/2 inch bolts, screws, and nuts in inch-measurement fastener systems where a split lock washer is specified.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final tightening. Ensure the fastener and washer grade are compatible with the joint requirements — do not pair high-strength Grade 8 hardware with lower-grade fasteners or soft base materials that may crush under load. Follow applicable mechanical codes and engineering specifications for the assembly. No special tools are required beyond standard hand or power torque equipment appropriate to the fastener size.