Value Collection B10029 M30 Flat Washer Steel Zinc-plated 5pk

Product Description

The VALUE COLLECTION B10029 is a standard flat washer designed for use with M30 metric fasteners. Manufactured from steel with a zinc-plated finish, this washer provides a smooth bearing surface that distributes clamp load and reduces the risk of surface damage under bolt or nut heads. It measures 31mm inside diameter, 56mm outside diameter, and 4mm thick, meeting DIN 125, ISO 7089, and ISO 7090 dimensional standards. Each package contains 5 washers. Maintenance technicians, millwrights, pipefitters, and structural installers use this type of washer in heavy-duty bolted connections across industrial and commercial applications.

This washer is suited for metric bolted assemblies requiring a large bearing surface to prevent pull-through or surface damage on softer substrates. Common applications include structural steel connections, machinery mounting, pipe flange work, and equipment anchoring where M30 fasteners are specified. The zinc-plated finish offers basic corrosion resistance for indoor and light-duty outdoor environments. At 140 HV hardness, the washer maintains its form under the clamping forces typical of M30 fastener torque loads.

Key Features

• Meets DIN 125, ISO 7089, and ISO 7090 dimensional standards for M30 metric washers
• Steel construction with 140 HV hardness rating for durability under load
• Zinc-plated finish provides corrosion resistance in indoor and light-duty environments
• 31mm inside diameter fits M30 metric bolts and threaded rod
• 56mm outside diameter distributes clamping load across a wide bearing surface
• Packaged in quantities of 5 per unit

Compatibility

Designed for use with M30 metric fasteners in applications conforming to DIN 125, ISO 7089, or ISO 7090 standards.

Installation Notes

Install by a qualified millwright, ironworker, pipefitter, or maintenance technician familiar with metric fastener specifications. Ensure the bolt or stud is fully de-energized and the assembly is in a safe, stable condition before disassembly or replacement. Do not exceed the rated clamping load for the M30 fastener grade in use. Verify fastener torque requirements against applicable engineering specifications or relevant codes before final assembly.