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STANDARD	SIZE	GRADE	FINISH
USS SAE F436	3/16"--3"	4.8	PLAIN
DIN 125A, DIN 134	M3---M1000	8.8	ZINC PLATED
DIN 436,DIN7989,		10.9	H.D.G
DIN6916			BLACK
BS 4320,BS 3410	M3---M1000		SHERADIZED
	1/4"----3"		MECHANICAL ZINC
NFE25--513	M3---M1000
SA	M3---M1000
AS1252	M16---M36

washer