Value Collection LW7S00400-100BX M4 Split Lock Washer

Product Description

The VALUE COLLECTION LW7S00400-100BX is a metric split lock washer designed for use with M4 screws. Manufactured from steel with a bright, uncoated finish, this washer features an inside diameter of 4.1 to 4.4mm and a maximum outside diameter of 7.6mm. At 0.9mm thick, the helical split design creates spring tension under a fastened head, resisting loosening caused by vibration and torque relaxation. This component is sold in a minimum order quantity of 100 pieces per package and conforms to DIN 127B fastener standards. It is a staple hardware item installed by electricians, HVAC technicians, plumbers, and mechanical contractors in both residential and commercial applications.

This split lock washer is used wherever M4 metric fasteners are employed and vibration resistance is required. Typical applications include equipment panels, control enclosures, motor assemblies, conduit hardware, and general mechanical assemblies. The uncoated steel construction suits standard indoor installations. The DIN 127B standard ensures dimensional consistency for use in metric fastening systems across a wide range of trade and light industrial settings.

Key Features

• Conforms to DIN 127B metric fastener standard for dimensional consistency
• Steel construction with bright, uncoated finish for standard indoor use
• Inside diameter range of 4.1 to 4.4mm fits M4 screws
• Maximum outside diameter of 7.6mm and thickness of 0.9mm
• Helical split design generates spring tension to resist fastener loosening under vibration
• Sold in multiples of 100 pieces per order, with one package per unit

Compatibility

Designed as a DIN 127B-compliant metric split lock washer for use with M4 screws in standard metric fastening applications.

Installation Notes

Split lock washers are installed by electricians, HVAC technicians, plumbers, and mechanical contractors as part of routine fastener assemblies. Place the washer between the fastener head or nut and the mating surface before torquing the fastener. Ensure the mating surface is clean and free of debris to achieve proper seating. Follow applicable codes and equipment manufacturer guidelines when selecting fastener hardware for specific assemblies.