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Copper sealing washers M10 100 pack plain finish

Zoro Select

Zoro Select M50301.100.0016 Sealing Washer M10 Copper 100 Pack

SKU CH-50EP-PV5TH

Copper sealing washers for M10 bolts, 10 mm inner and 16 mm outer diameter, 1.5 mm thick, pack of 100

  • Product typeWashers
  • Copper material provides reliable sealing performance
  • Annealed heat treatment ensures consistent 1.5 mm thickness
  • M10 inside diameter fits standard metric bolt sizes
  • 16 mm outside diameter distributes load evenly
  • 100-piece pack supplies ample quantity for multiple jobs

Copper M10 sealing washers

This pack contains one hundred copper sealing washers sized for M10 bolts. They suit automotive, plumbing and general mechanical assemblies that need a soft metal gasket. The plain finish and annealed heat treatment keep the material ductile for reliable deformation. Each washer has a 10 mm inner diameter and a 16 mm outer diameter.

1.5 mm uniform thickness

Every washer in the pack measures 1.5 mm thick with a tolerance of ±0.2 mm. That single dimension determines whether the stack height fits your joint. The consistent thickness across all one hundred pieces lets you plan the clamp load without sorting.

Seals fluid joints up to M10

The copper material conforms to flange faces and resists corrosion in oil, fuel and coolant systems. One hundred pieces cover multiple rebuilds or a small production run. The pack runs out when a job needs larger diameters, different thicknesses or a material such as aluminium or fibre.

How it compares

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

Price $21.99
Typical for this category: the median of 2,607 items is $18.99.

Specifications

Product
Brand nameZORO SELECT
Product typeWashers

Questions about this item

What does the 10 mm inside diameter mean when I fit it on an M10 bolt?

The 10 mm inside diameter matches the M10 bolt shank, so the washer sits flush under the bolt head or nut without play.

How does the copper material affect the seal in practice?

Copper is soft and annealed, so it deforms under torque to fill surface irregularities and create a reliable fluid or gas seal.

Will the 16 mm outside diameter and 1.5 mm thickness fit my existing M10 hardware?

The 16 mm outside diameter and 1.5 mm nominal thickness are standard for M10 copper sealing washers, so they work with typical M10 bolts and nuts.

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