Screw and Bolts High Hardness Spring Steel Locking Washer Oxide Black

Oxide Black High Hardness Spring Steel Locking Washer For Screw and Bolts

A washer is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are as a spacer, spring (belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). Washers usually have an outer diameter (OD) about twice the width of their inner diameter (ID). Washers are usually metal or plastic. High quality bolted joints require hardened steel washers to prevent the loss of pre-load due to Brinelling after the torque is applied. Type Demension Weight (Kg/Mpcs) Spring wsaherFe6(UIC864-3) diam: 25 90 Spring washer AREA67 7/8 90.55 Spring washer AREA67 1 152.33 Spring washer AREA67 1-1/8 187.65 Plain pattern washer 7/8 70.46 Plain pattern washer 1 78.03 Plain pattern washer 1-1/8 85.32 Flat washer ULS6 47/23/4 41 Flat washer ULS6 50/25/4 42

DIN 6796 Heavy Duty Locking Washer

Manufactured to specification DIN 6796 these heavy duty bolting washers are perfect for bolted connections using bolts that range from grade 8.8 to 10.9.

Made from carbon steel C60 (DIN 1.0601) or similar with a self finish or mechanical zinc finish also available from stock.

Other materials and surface treatments available on request.

Founded in 2013, located at No.199 Huanlou Road, development zone Kunshan city, we Suzhou Zhongyue Railway Material Co., Ltd. Is a leading and reputed manufacturer of qualified railway fasteners in China.

We are certified by ISO 9001:2008. We have a complete set of inspection equipments to strictly control the quality of each production procedure and make sure all the products reach the international standards and customers’ requirements.

ZY team is composed of high professional senior engineers, professional technicians and a group of highly experienced operation workers, this is the strong guarantee of our products quality. We have our own R&D team, after-sales service team and quality-assurance team with the most advance technology and management concepts.

With advanced technology, comprehensive testing facilities, excellent management team and powerful processing capacity, our products have been exported worldwide. After many times of inspections by BV, SGS，ABS etc, our products have been well recognized by our customers. We are qualified supplier of Kazakhstan Railway, Thailand Railway, Zambia Railway, Indonesia Railway, Malaysia Railway, Sweden Railway, New Zealand Railway, American Railway, Canada Railway etc, supplying all kinds of railway material to them for many years without any quality complaint.

We not only can produce according to International standards, customers’ drawings and samples, but also can provide design proposal by our own high standard R&D department.

With the principles of quality first and customers first, ZY Rail enjoys bulk popularity and high reputation at home and abroad, while having many customers all over the world. With powerful strength and broad vision, ZY rail is moving towards internationalization of enterprises.