Value Collection SEW7X2200-010BX M22 External Tooth Lock Washer

Product Description

The VALUE COLLECTION SEW7X2200-010BX is an M22 external tooth lock washer designed to maintain fastener tension under vibration and dynamic load conditions. Constructed from Grade 18-8 austenitic stainless steel (Austenitic Grade A2), it delivers reliable corrosion resistance in wet, chemical-exposure, or outdoor environments. The external tooth configuration bites into both the mating surface and the fastener bearing face, resisting rotational loosening without secondary thread-locking compounds. With a 23mm inside diameter and 36mm outside diameter, it seats directly on M22 fasteners and is delivered uncoated for full material conductivity and compatibility with stainless fastener assemblies.

This washer is suited for mechanical, structural, and industrial fastening applications where vibration or thermal cycling can back out standard fasteners. Typical uses include equipment mounting, pipe flange assemblies, panel attachment, and general-purpose bolted connections in corrosive or high-humidity environments. It is commonly specified by millwrights, pipefitters, maintenance technicians, and construction trades working with stainless or mixed-metal fastener systems. Minimum order quantity is 10 pieces, sold in single-unit packages.

Key Features

• External tooth design provides aggressive bite on both fastener and substrate to resist loosening under vibration
• Grade 18-8 austenitic stainless steel (A2) construction for corrosion resistance in wet and chemically active environments
• 23mm inside diameter fits M22 fasteners directly with no modification
• 36mm outside diameter distributes clamp load across a broad bearing surface
• 1.5mm thickness provides consistent spring action within the tooth profile
• Uncoated finish maintains full stainless conductivity and avoids coating delamination under high-clamp loads
• Meets DIN 6797 and DIN 6798 dimensional standards

Compatibility

Designed as an OEM-style replacement or direct-fit component for M22 fastener assemblies requiring an external tooth lock washer per DIN 6797 and DIN 6798 specifications.

Installation Notes

Installation is performed by the appropriate mechanical or maintenance trade per the applicable fastener assembly specification. Position the washer with the teeth facing the fastener bearing surface and the flat side against the workpiece. Do not reuse lock washers after full torque has been applied, as tooth deformation reduces effectiveness on subsequent installations. Ensure mating surfaces are clean and free of coatings that would prevent tooth engagement.