Value Collection MP42458-20 M20 Split Lock Washer Grade 8

Product Description

The VALUE COLLECTION MP42458-20 is a metric split lock washer designed for use with M20 fasteners in bolted assemblies requiring reliable resistance to loosening under vibration and dynamic loads. Manufactured from Grade 8 spring steel with a zinc plated finish, this washer delivers hardness in the 44 to 51 HRC range for dependable spring tension retention. The inside diameter runs 20.2 to 21.2mm, the maximum outside diameter is 33.6mm, and the thickness is 4mm. It conforms to DIN 127 fastener standards. Mechanical contractors, millwrights, and industrial maintenance technicians install this washer as part of standard bolted joint assembly procedures.

This split lock washer is suited for M20 bolted connections in structural, mechanical, and equipment mounting applications where joint integrity under load cycling is required. The zinc plating provides basic corrosion resistance for general indoor and light-duty outdoor installations. It is sold in single-piece quantity with a minimum order of 25 pieces, making it appropriate for both maintenance stock and new construction fastener kits. The DIN 127 standard governs dimensional and performance requirements for this washer type.

Key Features

• Grade 8 spring steel construction with hardness rated at 44 to 51 HRC
• Zinc plated finish for basic corrosion resistance
• Conforms to DIN 127 fastener standard for metric split lock washers
• Inside diameter range of 20.2 to 21.2mm fits M20 fasteners
• 4mm thickness provides substantial spring force retention in bolted joints
• Minimum order quantity of 25 pieces supports maintenance and construction stocking

Compatibility

Designed as a DIN 127 metric split lock washer for use with M20 screw and bolt fasteners in standard metric bolted assemblies.

Installation Notes

Installation is performed by mechanical technicians, millwrights, or maintenance personnel as part of fastener assembly. Place the split lock washer between the nut or bolt head and the mating surface before torquing to specification. Ensure mating surfaces are clean and free of debris before assembly. Follow applicable mechanical codes and equipment manufacturer torque requirements for the specific joint being assembled.