DIN 435

The German standard DIN 435 applies to washers made of chromium-nickel steel grades A2 and A4.

This is a square-shaped product with a center hole and a grooved recess on one side. In cross-section the washer has varying thickness, hence the term “tapered”. Used as part of bolted fastening when connecting I-beams with a 14% slope.

The washer helps align the flanges of the fastened parts while also increasing the bearing area of the fastener, preventing it from loosening.

The square tapered washer DIN 435 is indispensable when the planes of the connected parts need to be aligned. When used together with metric fasteners, it creates a stable joint that reinforces the overall structure. This property is used in construction and across all branches of mechanical engineering.

Washers DIN 435 are supplied by FLOK.

Dimensions of square tapered washers DIN 435 in mm:

d₁	d	a	b	h	r
M8	9.0	22	22	4.6	1.2
M10	11	22	22	4.6	1.2
M12	13.5	26	30	6.2	1.6
M16	17.5	32	36	7.5	2
M20	22.0	40	44	9.2	2.4
M22	24.0	44	50	10	2.4
M24	26.0	56	56	10.8	2.4

d		d₁	a	b	h
M8	5/16”	9	22	22	4.6/1.5
M10	3/8”	11	22	22	4.6/1.5
M12	7/16”	13.5	26	30	6.2/2
	1/2”	13.5	26	30	6.2/2
M16	5/8”	17.5	32	36	7.5/2.5
M20	3/4”	22	40	44	9.2/3
M22	7/8”	24	44	50	10/3
M24		26	56	56	10.8/3
	1”	26	56	56	10.8/3
M27		30	56	56	10.8/3
M30	1 1/8”	33	62	62	11.7/3