Description Of Washers

 

1. Grade C washers do not have Ra3.2 and deburring requirements. 2. Grade C is suitable for medium assembly series, and Grade A is suitable for fine assembly series. 3. GB848-85 is mainly used for cylindrical head screws, and others are used for standard hexagonal bolts, screws and nuts.
4. Material mechanical property grade: steel 200HV; austenitic stainless steel A200. 5. Marking example: standard series, nominal size d=8mm, performance grade 200HV, flat washers without surface treatment: Washer GB97.1-85 8 200HV