Value Collection 33560 Split Lock Washer 1/4 in Grade 5

Product Description

The VALUE COLLECTION 33560 is a Grade 5 steel split lock washer sized for 1/4 inch screws and fasteners. Split lock washers resist loosening caused by vibration and torque load by biting into both the fastener bearing surface and the mating material when tightened. This washer ships uncoated with a bright finish, making it compatible with a wide range of plated and uncoated fastener assemblies. With an inside diameter range of 0.252 to 0.260 inches, a maximum outside diameter of 0.489 inches, and a thickness of 0.077 inches, it meets standard dimensional requirements for 1/4 inch fastener applications across mechanical, electrical, plumbing, and HVAC installations.

This split lock washer is used in residential and commercial trade applications wherever vibration resistance is required at a 1/4 inch fastener point. Common installation scenarios include equipment panel assembly, conduit fitting securement, mechanical equipment mounting, and general structural fastening. The bright uncoated finish suits indoor and dry-location applications. It is sold individually with a minimum order quantity of 200 pieces, making it suitable for shop stock, service van inventory, and bulk fastener replenishment by trade professionals.

Key Features

• Grade 5 steel construction provides reliable tensile strength for general trade fastening applications
• Split lock design resists fastener loosening under vibration and dynamic load
• Sized for 1/4 inch screws with an ID range of 0.252 to 0.260 inches
• Maximum outside diameter of 0.489 inches fits standard 1/4 inch fastener bearing surfaces
• Bright uncoated finish compatible with zinc-plated, plain steel, and stainless fasteners in dry environments
• Lightweight at 0.01 pounds per piece, suitable for high-volume stock

Compatibility

Designed as a standard-dimension replacement or stock split lock washer for 1/4 inch screw fastener assemblies in mechanical, electrical, HVAC, and plumbing equipment applications.

Installation Notes

Split lock washers are installed by placing them between the fastener head or nut and the mating surface before final tightening. Ensure the fastener and mating surface are clean and free of debris before assembly. Follow applicable NEC, IPC, or IFGC fastener requirements for trade-specific installations. Do not reuse split lock washers that have been fully compressed flat, as they no longer provide effective locking action.