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NORMAL ROUND FLAT WASHER
STANDARD:DIN125?DIN9021?DIN126?DIN433?DIN440R?DIN1440?DIN7349?DIN7989?NFE25513?NFE25514?BS4320?BS3410?USS?SAE?NON-STANDARD
SIZE:M3-M80,1/8-2’
MATERIAL:
Mild carbon steel?ss304(a2)?ss316(a4)?hv140-hv200 carbon steel
SURFACE TREATMENT:
Zinc plated blue /white, zinc plated yellow,hot dipped galvanized,plain, black, phosphating.

HIGH STRENGTH FLAT WASHER
STANDARD: ASTM F436/F436M? DIN6916
SIZE:1/4-3’, M12-M36
MATERIAL:S45C, S35C
SURFACE TREATMENT:Zinc plated, black, hot dipped galvanized

SQUARE FLAT WASHER
STANDARD: DIN436, NON-STANDARD
SIZE: M10-M52
MATERIAL: Mild carbon steel, S45C, S35C
SURFACE TREATMENT: Zinc plated blue /white, zinc plated yellow, hot DIPPED galvanized, plain, black, phosphating.