Value Collection 47209 M18 Split Lock Washer 18-8 Ss A2 25 Pack

Product Description

The VALUE COLLECTION 47209 is a metric split lock washer sized for M18 fasteners, manufactured from 18-8 austenitic stainless steel to Grade A2 standards. The split lock design creates spring tension under a fastener head or nut, resisting loosening caused by vibration and dynamic loads. With an inside diameter range of 18.2 to 19 millimeters, an outside diameter of 29.4 millimeters, and a thickness of 3.5 millimeters, this washer meets DIN 127 dimensional standards. It is sold in a package of 25 pieces. Licensed tradespeople and maintenance professionals working with stainless fastener assemblies in corrosive or high-vibration environments will find this washer appropriate for structural and mechanical applications.

This washer is suited for metric fastener assemblies requiring vibration resistance and corrosion protection. The 18-8 austenitic stainless steel composition provides good resistance to oxidation and many common corrosives, making it appropriate for plumbing, HVAC equipment mounting, marine-adjacent installations, food-service equipment, and general industrial maintenance work. The Grade A2 designation indicates compliance with standard austenitic stainless composition requirements. Installation is compatible with M18 machine screws, bolts, and threaded rod applications where a DIN 127-compliant split lock washer is specified.

Key Features

• DIN 127 metric split lock washer standard compliance
• 18-8 austenitic stainless steel, Grade A2 — corrosion-resistant construction
• Inside diameter range: 18.2 to 19 millimeters to accommodate M18 fasteners
• Outside diameter: 29.4 millimeters; thickness: 3.5 millimeters
• Split lock design provides spring-loaded resistance to vibration-induced loosening
• Sold in a package of 25 washers with a minimum order quantity of 1

Compatibility

Designed for use with M18 metric screws, bolts, and nuts in assemblies requiring a DIN 127-compliant split lock washer. Suitable for stainless fastener systems where Grade A2 material is specified.

Installation Notes

Install this washer between the fastener head or nut and the mating surface with the split gap oriented so the sharp edges bite into both surfaces as the fastener is tightened. Confirm that mating fasteners and base materials are compatible with 18-8 stainless steel to avoid galvanic corrosion. Follow applicable mechanical or structural codes for fastener torque specifications, which are determined by the fastener grade and joint design rather than the washer alone. Do not reuse split lock washers that have been fully flattened, as they will not provide effective locking action.