RS PRO Stainless Steel Plain Washer M20 BS 4320B 275-721, A2 Stainless Steel, 37 mm OD, 21 mm ID, 2 mm Thickness

RS PRO 275-721 Stainless Steel Plain Washer is designed for M20 fastener assemblies requiring reliable load distribution and corrosion resistance. This washer is constructed from A2 grade stainless steel, providing enhanced durability and suitability across various demanding environments including electronics, food processing, chemical plants, and construction projects.

The washer features a 37 mm external diameter, which ensures efficient spreading of force across a wide surface area and minimizes localized stress on installation materials. The precise 21 mm internal diameter is optimized for machine-threaded M20 bolts, screws, or nuts, supporting a secure and accurate fit while facilitating ease of maintenance and assembly.

Certified to BS 4320B standards, this plain washer delivers consistent quality and performance, meeting recognized benchmarks for industrial fasteners. The robust 2 mm thickness supports optimal spacing within fastener assemblies, further aiding in load distribution and helping to prevent distortion and premature wear of installation surfaces.

The plain, smooth finish ensures seamless installation between mating components, reducing friction while preserving surface integrity. As part of essential fastener hardware, RS PRO washers are instrumental in reducing the risk of wear and tear, maintaining the longevity and reliability of assembled materials. Their corrosion resistance makes them well-suited for installations subject to moisture, chemicals, and variable operating conditions.

Industry sectors that benefit from the RS PRO 275-721 washer include construction, electronics, manufacturing, food and beverage processing, and laboratory equipment assembly. These washers are also valuable in environments requiring routine maintenance, enabling easier loosening and tightening during component servicing.

Manufactured from durable A2 stainless steel for enhanced corrosion resistance. M20 compatible, ideal for machine threaded fasteners and nuts. External diameter measuring 37 mm ensures optimal surface area coverage. Precision 21 mm inside diameter for correct fit of M20 bolts and screws.

Standardized to BS 4320B for quality and performance assurance. 2 mm thickness facilitates effective load distribution and spacing. Suitable for electronic, food, chemical, and construction industries. Plain finish ensures a smooth interface between mating components.

Reduces surface pressure and prevents material wear over time. Browse more RS PRO industrial fasteners and Plain Washers in EnvMart's Industrial Tools & Equipment category.