Zoro Select
Zoro Select M50301.200.0024 Sealing Washer M20 Copper 25 Pack
Copper sealing washers for M20 bolts, 20 mm inner by 24 mm outer diameter, 1.5 mm thick, pack of 25
- TypeWashers
- Copper construction resists corrosion in fluid systems
- Annealed material conforms to sealing surfaces for leak prevention
- Metric M20 sizing matches standard bolt dimensions precisely
- Pack of 25 washers covers multiple assembly or repair jobs
- Thickness held to 1.5 mm with ±0.2 mm tolerance for consistent compression
Copper Sealing Washers for M20 Bolts
This pack supplies 25 plain-finish copper sealing washers sized for M20 fasteners. Each washer has a 20 mm inside diameter and a 24 mm outside diameter. The annealed copper construction provides reliable crush sealing in fluid or gas systems. They suit maintenance technicians and assemblers who need consistent sealing performance.
Capacity and Headroom
Uniform 1.5 mm thickness with a ±0.2 mm tolerance gives predictable compression behaviour. The copper material conforms to flange irregularities and resists corrosion in hydraulic, fuel or coolant circuits. The 25-piece quantity covers multiple joint reseals or small production runs. Larger diameter bolts or higher volume requirements would need additional packs.
Build Quality and Daily Use
Annealed copper ensures the washers deform evenly without cracking during torque-up. The plain finish avoids plating contamination in sensitive fluid paths. Metric sizing matches standard M20 hardware directly from the pack. The small pack format keeps inventory tidy for occasional service jobs.
Highlights
- Copper construction resists corrosion in fluid systems
- Annealed material conforms to sealing surfaces for leak prevention
- Metric M20 sizing matches standard bolt dimensions precisely
- Pack of 25 washers covers multiple assembly or repair jobs
- Thickness held to 1.5 mm with ±0.2 mm tolerance for consistent compression
Specifications
| Brand | ZORO SELECT |
|---|---|
| Type | Washers |
Questions about this item
Will these 20 mm copper washers seat properly on my existing M20 bolts?
The washers have a 20 mm inside diameter and 24 mm outside diameter designed for M20 bolts, with a uniform 1.5 mm thickness and ±0.2 mm tolerance.
How can I confirm the copper sealing washers are performing correctly after installation?
Check for a uniform copper seal around each bolt with no fluid or gas leakage at the joint, and verify the annealed washers have compressed evenly to 1.5 mm thickness.
Does the 25 pack contain only the copper sealing washers or are additional fasteners included?
The package contains 25 copper sealing washers only; bolts, nuts or other fasteners must be purchased separately.
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