Overview

Keep a complete set of copper sealing washers on hand for sump plugs, oil drains, hydraulic fittings and general metalworking projects. This assortment kit brings together four of the most common metric sizes — M8, M10, M12 and M14 — in one organized box, so you always have the right flat ring seal within reach.

Each washer is stamped from quality copper, a soft metal that deforms slightly under pressure to fill tiny gaps and create a tight, reliable seal. That makes these washers a smart choice for anyone who works on engines, gearboxes, plumbing lines or machinery and wants to stop drips and leaks before they start.

Key Features

• Material: Copper
• Type: Flat Washer
• Sizes Included: M8, M10, M12, M14
• Thickness: 0.8 mm to 1.5 mm
• System of Measurement: Metric
• Model: 0015
• Packaging: Assortment box with divided compartments
• DIY Use: Metalworking

Highlights

• ✓ Four metric sizes in one kit — no more hunting for a single size
• ✓ Soft copper compresses to form a tight seal against leaks and drips
• ✓ Flat ring design installs in seconds with standard tools
• ✓ Compartment box keeps every size sorted and easy to grab
• ✓ Great value for workshops, garages and home mechanics

Usage

Ideal for sump plugs, oil drain plugs, fuel and hydraulic line fittings, and general sealing tasks on cars, motorcycles, tractors and industrial equipment. Simply match the washer to your bolt size, place it under the head or nut, and tighten as usual.

In the Box

• Copper washer assortment (M8, M10, M12, M14)
• Storage box with compartments