Square Washers DIN 436 – 1990

Square washers are square in shape and may be flat on both sides or flat on one side and beveled on one side. Often used with square head bolts, square washers prevent pull through and provide a larger surface area and greater hold than standard round flat washers.

Additional information

Grade:4/6/8/10/12

Finish:ZINC, Plain, Black

Material: Stainless steel, carbon steel and other metal materials

Washer Standard : DIN, ISO, JIS, GB, IS, BS, ASTM

For Nominal Thread Diameter		M10	M12	M16	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
d	min=nominal size	11	13.5	17.5	22	24	26	30	33	36	39	42	45	48	52	56
d	max	11.43	13.93	18.2	22.84	24.84	26.84	30.84	34	37	40	43	46	49	53.2	57.2
s	max=nominal size	30	40	50	60	70	80	90	95	100	110	125	135	140	150	160
s	min	28.7	38.4	48.4	58.1	68.1	78.1	87.8	92.8	97.8	107.8	122.5	132.5	137.5	147.5	157.5
h	Nominal Size	3	4	5	5	6	6	6	6	6	8	8	8	8	10	10
	max	3.6	4.6	6	6	7	7	7	7	7	9.2	9.2	9.2	9.2	11.2	11.2
	min	2.4	3.4	4	4	5	5	5	5	5	6.8	6.8	6.8	6.8	8.8	8.8
per 1000 units ≈ kg		20	45.7	88.7	126	209	275	348	385	423	685	895	1050	1120	1600	1820