Value Collection 99723 Split Lock Washer 7/16 in Grade 8

Product Description

The VALUE COLLECTION 99723 is a Grade 8 spring steel split lock washer designed to resist loosening caused by vibration and dynamic loads in bolted assemblies. With a screw size of 7/16 inch, an inside diameter ranging from 0.44 to 0.45 inches, and a maximum outside diameter of 0.776 inches, this washer delivers a consistent spring-back load that helps maintain clamp force after torque is applied. The uncoated finish exposes the base spring steel, making it suitable for assemblies where a coating is specified separately or where bare steel is acceptable. Thickness is 0.109 inches. Licensed mechanics, maintenance technicians, and industrial assemblers commonly use split lock washers of this type in structural and mechanical fastening applications.

This split lock washer is suited for general industrial, mechanical, and structural assemblies requiring vibration resistance at the 7/16 inch fastener size. Typical install scenarios include machine frames, equipment panels, steel-to-steel bolted connections, and maintenance repair work across manufacturing, construction, and trade service environments. The uncoated spring steel construction makes it appropriate for dry or controlled-environment applications where corrosion exposure is limited.

Key Features

• Grade 8 spring steel construction for high-strength, high-load applications
• Split lock design creates spring-back tension that resists fastener loosening under vibration
• Inside diameter range of 0.44 to 0.45 inches fits standard 7/16 inch screws and bolts
• Maximum outside diameter of 0.776 inches suits standard fastener bearing surfaces
• Uncoated finish — 0.109 inch thickness for consistent clamp load performance
• Inch measurement system for compatibility with standard US fastener specifications

Compatibility

Designed as an OEM-style or replacement split lock washer for use with 7/16 inch screw and bolt assemblies in standard inch-measurement fastening applications.

Installation Notes

Split lock washers are installed by placing mechanics or assemblers prior to driving the fastener — position the washer flat side down against the work surface with the split gap oriented away from the bearing surface. Always de-energize, depressurize, or shut down equipment before working on bolted assemblies. Do not reuse split lock washers that have been fully compressed flat, as the spring-back tension will be permanently reduced. Follow applicable torque specifications from the equipment manufacturer or relevant standards for the fastener grade and size in use.