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Copper sealing washers, M24 size, plain finish, pack of 25

Zoro Select

Zoro Select M50302.240.0030 Copper Sealing Washer M24 25 Pack

SKU CH-3VCY-V7MM7

Copper sealing washers for M24 bolts, 24 mm inner and 30 mm outer diameter, 2 mm thick, pack of 25

  • Product typeWashers
  • Annealed copper gives a reliable seal on M24 threads
  • 25-piece pack keeps spares on hand for multiple jobs
  • Plain finish resists corrosion in harsh environments
  • 24 mm ID and 30 mm OD match M24 bolt dimensions
  • +/- 0.2 mm thickness tolerance ensures consistent compression

Copper Sealing Washer M24 25 Pack

These copper sealing washers fit M24 bolts and provide a reliable seal in plumbing, hydraulic, or automotive assemblies. The pack contains 25 pieces for maintenance or production use.

Annealed copper material and plain finish

The washers are annealed for consistent deformation under load, creating a tight seal without additional compounds. Plain finish and grey copper colour indicate no extra coating that could affect torque or compatibility.

Simple installation with standard tools

Place the washer under the bolt head or nut and tighten to specification; the 2 mm thickness and ±0.2 mm tolerance ensure repeatable compression. Avoid over-torquing, which can split the soft copper and cause leaks.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 70% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameZORO SELECT
Product typeWashers

Questions about this item

Will the copper sealing washers need periodic replacement due to annealing or deformation?

The washers are supplied annealed and made of solid copper; they are single-use sealing components and should be replaced each time the joint is broken.

What dimensional tolerance limits reuse on an M24 bolt after repeated tightening?

Thickness is 2 mm with a tolerance of ±0.2 mm; the inside diameter is 24 mm and the outside diameter is 30 mm, so dimensional change after compression dictates replacement.

How much heat can the copper washers dissipate when used continuously in a high-temperature joint?

Copper conducts heat well, but the washers are only 2 mm thick and are not rated as heat-dissipation components; they serve solely as seals.

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