Value Collection SEW7X1600-050BX M16 Lock Washer 50 Pack

Product Description

The VALUE COLLECTION SEW7X1600-050BX is an external tooth lock washer designed for use with M16 fasteners in industrial, mechanical, and structural assembly applications. The external tooth configuration bites into the mating surface and fastener head to resist loosening caused by vibration and torque. Manufactured from Grade 18-8 Austenitic Stainless Steel (A2), the washer delivers corrosion resistance without a coating. With a 17mm inside diameter and 26mm outside diameter, it seats correctly on M16 bolts and screws. This package contains a minimum order quantity of 50 pieces, suitable for production runs and maintenance stock.

This washer is used in applications where vibration or dynamic loading would allow a standard flat washer to work loose over time. Typical installations include mechanical equipment, marine hardware, food-processing machinery, and outdoor structural assemblies where corrosion resistance is a priority. The external tooth design provides a larger contact surface compared to internal tooth variants, distributing clamping load while increasing locking force. Licensed mechanics, millwrights, pipefitters, and maintenance technicians commonly specify this type in stainless steel for wet or corrosive environments.

Key Features

• External tooth design resists loosening under vibration and dynamic load
• Grade 18-8 Austenitic Stainless Steel (A2) for corrosion resistance in wet and outdoor environments
• 17mm inside diameter fits M16 bolts and screws
• 26mm outside diameter distributes clamping load across the mating surface
• Uncoated finish — no plating or treatment to flake, chip, or introduce galvanic incompatibility
• Conforms to DIN 6797 and DIN 6798 standards
• Sold in a minimum quantity of 50 pieces per order

Compatibility

Designed for use with M16 screws and bolts. Conforms to DIN 6797 and DIN 6798 dimensional and performance standards. Does not meet military specifications.

Installation Notes

Installation is performed by mechanics, millwrights, or maintenance technicians using standard hand or power tools. Always de-energize, depressurize, or lock out the equipment before servicing fastened joints. Place the washer between the fastener head and the mating surface with the teeth facing the fastener head or the surface to be gripped, as required by the joint design. Do not reuse lock washers that have been fully compressed, as the tooth engagement will be reduced.