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CW-38
Isolfix

Cupped Washer

Ref: CW-38

Cupped retention washer providing maximum surface contact and load distribution on soft insulation materials.

Key Specifications

Material
Galvanised mild steel
Diameter
38 mm
Cup depth
5 mm
Thickness
0.5 mm
Pin hole
3.2 mm
Packaging
Bag of 500

Description

The CW-38 cupped washer is designed for use on low-density and soft insulation materials where standard flat clips may pull through. The deep-drawn cup shape creates a large bearing surface that distributes the clamping load over a wider area, preventing damage to delicate mineral wool and glass fibre products. It is compatible with standard 3.0 mm insulation weld pins and can be used alongside spring clips or speed clips.

Features

  • Deep-drawn cup profile
  • Large bearing surface for soft insulation
  • Galvanised steel
  • Compatible with standard weld pins

Applications

  • Low-density mineral wool insulation
  • Glass fibre blankets
  • Elastomeric sheet insulation

Technical Documents

Materials

Galvanised mild steel