Value Collection 99731 Grade 8 Split Lock Washer 1-1/4 in

Product Description

The VALUE COLLECTION 99731 is a Grade 8 steel split lock washer sized for 1-1/4 inch screws and bolts. Split lock washers apply spring tension under a fastener head or nut to resist loosening from vibration and torque relaxation. This washer is uncoated bright steel, suited for dry or controlled-environment installations where a bare steel finish is acceptable. With an inside diameter ranging from 1.254 to 1.28 inches and a maximum outside diameter of 2.036 inches, it seats cleanly on standard 1-1/4 inch fastener shanks. Thickness is 0.312 inches. Grade 8 material provides high tensile strength appropriate for heavy-duty mechanical and structural fastening applications.

This split lock washer is used in mechanical assemblies, structural connections, and equipment mounting where high-strength fasteners require positive locking under dynamic or vibratory loads. Typical applications include industrial equipment, heavy machinery, HVAC unit framing, electrical panel mounting, and similar trade installations where Grade 8 fastener hardware is specified. It is sold individually with a minimum order quantity of 10 pieces.

Key Features

• Grade 8 steel construction for high tensile strength and reliable locking performance
• Sized for 1-1/4 inch screws with an ID range of 1.254 to 1.28 inches
• Maximum outside diameter of 2.036 inches for standard bearing surface coverage
• 0.312 inch thickness delivers consistent spring tension under load
• Bright uncoated finish suitable for controlled indoor or dry environments
• Split lock design resists loosening caused by vibration and torque relaxation

Compatibility

Designed as a standard replacement or supplemental split lock washer for 1-1/4 inch Grade 8 fastener assemblies in mechanical, structural, and trade applications.

Installation Notes

Installation is performed by mechanics, millwrights, HVAC technicians, electricians, or plumbers as part of equipment mounting and structural fastening work. Always de-energize equipment and relieve system pressure before accessing fastened assemblies. Place the split lock washer between the fastener head or nut and the mating surface before tightening. Do not reuse split lock washers that have been fully compressed flat, as they will no longer provide effective locking tension.