We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Twenty-five copper sealing washers M22 plain finish

Zoro Select

Zoro Select M50301.220.0027 Copper Sealing Washer M22 25 Pack

SKU CH-8Q1B-BTXSY

Copper sealing washers for M22 bolts, 22 mm inner by 27 mm outer diameter, 1.5 mm thick, pack of 25

  • Product typeWashers
  • Copper construction resists corrosion in fluid systems
  • Annealed heat treatment ensures reliable crush sealing
  • Precise 22 mm inner diameter fits M22 bolts
  • 5 mm uniform thickness with ±0.2 mm tolerance
  • Pack of 25 washers covers multiple service jobs

Copper M22 Sealing Washers

Zoro Select M50301.220.0027 copper sealing washers are sold in a 25 pack for metric M22 bolt applications. They suit automotive, plumbing and general hardware tasks that need a soft metal gasket. The annealed copper conforms to flange faces to prevent fluid or gas leaks. This pack is for technicians and DIYers who need a ready supply of M22 seals.

22 mm inside diameter and 27 mm outside diameter

The critical specification is the 22 mm inside diameter matched to a 27 mm outside diameter with a 1.5 mm thickness. These dimensions decide whether the washer fits the specific M22 joint and provides enough seating area. The thickness tolerance is +/- 0.2 mm. Copper material and plain finish are the only other stated attributes.

Simple drop-in installation

Installation is a simple drop-in over the bolt before tightening the joint. The annealed copper deforms easily under torque to create the seal. What usually goes wrong is reusing a crushed washer or tightening unevenly, which can leave a leak path. Always use a fresh washer from the 25 pack for each assembly.

How it compares

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

Price $9.99
Cheaper than about 80% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameZORO SELECT
Product typeWashers

Questions about this item

What does the 1.5 mm thickness mean once the washer is torqued down?

The copper compresses to fill the joint face and creates a metal-to-metal seal that resists fluid and gas leakage under pressure.

How does the metric M22 sizing limit the bolts or fittings it can seal?

It fits only M22 threads with a 22 mm inside diameter and 27 mm outside diameter so the sealing surface matches the flange.

What clearance does the 27 mm outside diameter need to sit flat?

A minimum 27 mm seating face on the flange or boss is required so the full copper annulus contacts the surface.

More in General Hardware & Accessories

Similar items