90pc Assorted Box of Metric Bonded Seal Washers - 90 bonded seal washers in eight metric sizes from M10 up to M24, the type often called a Dowty washer.
The washer is steel with a rubber ring bonded into its face. Tightening the fitting squeezes the rubber against the seat while the metal body carries the clamping load, so the seal is not crushed out of shape the way a plain rubber washer would be. It seals under the head of a bolt or fitting without a gasket, and it centres itself on the thread as it goes down.
Box contents (90 pieces total) 15 x M10 15 x M12 15 x M14 15 x M16 15 x M18 5 x M20 5 x M22 5 x M24
Type Bonded seal washer (Dowty type), steel body with bonded rubber seal, sized to metric thread
Suitable for Hydraulic fittings, rams and valve blocks, sump and gearbox drain plugs, fuel, oil and air systems, compressors and air lines, plant, tractors and agricultural machinery
Also known as bonded seals, Dowty washers, metric sealing washers, self centring seals, or a bonded seal assortment box.
