Dimensions for UNI 6598 Square taper washers for U-sections

Nominal size	For thread	d1 min.	d1 max.	a nominal size	a min.	a max.	b nominal size	b min.	b max.	e	h nominal size	h min.	h max.	r approx.	t approx.	z	weight kg/1000pcs
9	M8	9	9.36	22	20	24	22	21.35	22.65	2.9	3.8	3.2	4.4	1.6	0.5	1.68	9.57
11	M10	11	11.43	22	20	24	22	21.35	22.65	2.9	3.8	3.2	4.4	1.6	0.5	1.68	8.85
13.5	M12	13.5	13.93	26	24	28	30	29.35	30.65	3.7	4.9	3.9	5.9	2	0.7	1.68	18.2
17.5	M16	17.5	17.93	32	29.5	34.5	36	35.2	36.8	4.45	5.9	4.9	6.9	2.4	0.8	2	31.4
22	M20	22	22.52	40	37.5	42.5	44	43.2	44.8	5.25	7	6	8	2.8	0.9	2	56.9
24	M22	24	24.52	44	41.5	46.5	50	49.2	50.8	6	8	7	9	3.2	1	2	82.3
26	M24	26	26.52	56	53	59	56	55.05	56.95	6.26	8.5	7.3	9.7	3.2	1	3.8	128
30	M27	30	30.52	56	53	59	56	55.05	56.95	6.26	8.5	7.3	9.7	3.2	1	3.8	119