Workshop Warehouse Copper Sealing Washers – Metric M14 X 18 X 1.5 (HCU1418)

Description

Genuine Workshop Warehouse · Part no. HCU1418

Workshop Warehouse HCU1418 are copper sealing washers in M14 x 18 x 1.5, meaning a 14mm hole, an 18mm outside diameter and a thickness of 1.5mm, to DIN 7603A. The narrow outside edge suits M14 plugs and unions with a slim sealing face, where a wider washer would overhang or catch on the casting.

Good to know

• Narrow or wide? Washers for an M14 thread come in more than one outside size; lay the old washer on a ruler or use calipers, and pick the 18mm one if that is what came off, because the plug's sealing face is made for it.
• Can I anneal and reuse an old washer? It can be done with heat, but a new one costs little and is a surer seal; reused washers are a common cause of slow drips.
• What should I check before fitting? Wipe the plug and the casting face clean, remove any old washer that has stuck on, and make sure the new one sits flat and square.

Which one?

If the old washer measures 20mm across, choose the Workshop Warehouse Copper Sealing Washers – Metric M14 X 20 X 1.5 (HCU1420); for diesel injector seats, the Workshop Warehouse Diesel Injector Washers Copper (AB142) are a separate copper range.

Key features

• M14 x 18 x 1.5 copper washers
• Slim 18mm outside diameter
• DIN 7603A
• Malleable copper, corrosion resistant
• High heat and electrical conductivity

Specification