Value Collection 370029PR M20 Flat Washer Zinc-plated

Product Description

The VALUE COLLECTION 370029PR is a metric standard flat washer designed for use with M20 fasteners. Manufactured from steel with a zinc-plated finish, this washer provides a load-bearing surface that distributes clamping force evenly across the joint. The 21mm inside diameter fits snugly around M20 screw shanks, while the 37mm outside diameter spreads the load over the mating surface. At 3mm thick, it meets DIN 125, ISO 7089, and ISO 7090 dimensional standards. Hardness is rated at 140 HV, making it suitable for structural and mechanical assemblies in commercial, industrial, and trade applications. Installed by electricians, plumbers, pipefitters, HVAC technicians, and general mechanical tradespeople.

This washer is used wherever M20 bolts or screws require a standard flat seating surface. Common applications include pipe flange assemblies, equipment mounting, structural steel connections, electrical enclosure hardware, and general mechanical fastening in metric-dimensioned systems. It is well suited for both indoor and outdoor assemblies where a zinc-plated corrosion-resistant finish is appropriate for the environment. Sold individually per package with a minimum order quantity of 50 pieces.

Key Features

• Meets DIN 125, ISO 7089, and ISO 7090 fastener standards
• Steel construction rated at 140 HV hardness
• Zinc-plated finish for corrosion resistance
• 21mm inside diameter for precise M20 screw fit
• 37mm outside diameter for broad load distribution
• 3mm nominal thickness for consistent clamping performance

Compatibility

Designed as a standard metric flat washer for use with M20 screws and bolts in applications conforming to DIN 125, ISO 7089, or ISO 7090 dimensional specifications.

Installation Notes

Install with the smooth face toward the bearing surface where possible to minimize galling. Torque the fastener to the specification required by the joint design and applicable code. Inspect washers for deformation or corrosion before reuse. Minimum order quantity of 50 units applies to this SKU.