Value Collection 33562 Split Lock Washer 3/8 in Grade 5

Product Description

The VALUE COLLECTION 33562 is a Grade 5 steel split lock washer designed for use with 3/8 inch fasteners. Split lock washers provide resistance to loosening by biting into both the fastener bearing surface and the mating surface under load. This washer is uncoated, leaving the steel surface bare for applications where a coating is not required or where a separate finish will be applied. It is used across a wide range of mechanical assembly tasks in HVAC, plumbing, electrical, and general trade work wherever a standard threaded fastener must be secured against vibration-induced loosening.

This washer fits 3/8 inch screws and bolts and is appropriate for general industrial and light mechanical assembly in both residential and commercial settings. The uncoated finish makes it suitable for dry or controlled indoor environments or for applications where contact with a coating could be problematic. Tradespeople and assemblers working on equipment panels, brackets, pipe supports, conduit hardware, and similar structural fastening tasks will find this washer a standard fit for Grade 5 fastener assemblies.

Key Features

• Grade 5 steel construction provides adequate tensile strength for general mechanical fastening
• Split lock design creates resistance to vibration-induced fastener loosening
• Uncoated finish for clean metal-to-metal contact
• Inside diameter range of 0.377 to 0.385 inches accommodates standard 3/8 inch fastener shanks
• Maximum outside diameter of 0.688 inches for compact bearing surface
• 0.115 inch thickness delivers consistent spring action under torque

Compatibility

Designed for use with standard 3/8 inch screws and bolts in general mechanical and structural assembly applications.

Installation Notes

Install this washer between the fastener head or nut and the mating surface with the split gap oriented so the sharp edges can bite into both contact surfaces as the fastener is tightened. Hand-tighten the fastener first to seat the washer, then bring to final torque per the fastener specification for the assembly. Do not reuse split lock washers that have been fully compressed flat, as they will no longer provide effective locking action.