HIGH STRENGTH WASHERS

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Nominal Size and Thread Diameter d	d1 Max	d1 Min	dc Max	dc Min	h Max	h Min
M12	13.8	13.4	30	29	2.8	2.4
M16	17.8	17.4	37	36	3.4	3
M20	21.5	21.1	43	42	3.6	3.3
M22	23.4	23	50	48.5	4.2	3.8
M24	26.4	26	56	54.5	4.5	4.1
M27	29.4	29	60	58.5	4.5	4.1
M30	32.8	32.4	66	64	4.6	4.2
M36	38.8	38.4	85	83.5	5.6	4.2