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Westfield Fasteners Product Specification:

Metric Red Fibre Flat Washer

This product guide contains the specification for metric red fibre flat washers, a series of standard parts available from Westfield Fasteners.

Product Description
Red fibre washers are designed for sealing and spacing. When wet the fibre washer will swell a little, helping to form the seal, which makes them suitable for a variety of plumbing and automotive applications. Fibre washers will compress slightly more than rubber or nylon washers. This means that they are less likely to be damaged by over tightening and abrasion, and therefore tend to have a longer lifespan. Red fibre washer are resistant to sea water, oil, solvents and petroleum derivatives. Table 1 below lists the available sizes and their dimensions.

technical drawing of Metric Red Fibre Flat Washer

Figure 1: Metric Red Fibre Flat Washer



Table 1: Dimensions & Tolerances for Metric Red Fibre Flat Washer(mm)

To Suit ThreadM2.5M3M4M5M6M8M10M12M16M20
d12.73.24.35.36.48.410.5131721
d26791012.51721243037
s0.50.50.80.80.81.51.51.51.51.5