Equivalent Standards

DIN 933 Hex Screws Dimensions

Size	Width Across Flat (s)				Head Height (k)
	DIN 933		ISO 4017		DIN 933		ISO 4017
	Min	Max	Min	Max	Min	Max	Min	Max
M2	3.82	4.00	3.82	4.00	1.28	1.52	1.275	1.525
M3	5.32	5.50	5.32	5.50	1.88	2.12	1.875	2.125
M4	6.78	7.00	6.78	7.00	2.68	2.92	2.675	2.925
M5	7.78	8.00	7.78	8.00	3.35	3.65	3.35	3.65
M6	9.78	10.00	9.78	10.00	3.85	4.15	3.85	4.15
M8	12.73	13.00	12.73	13.00	5.15	5.45	5.15	5.45
M10	16.73	17.00	15.73	16.00	6.22	6.58	6.22	6.58
M12	18.67	19.00	17.73	18.00	7.32	7.68	7.32	7.68
M14	21.67	22.00	20.67	21.00	8.62	8.98	8.62	8.98
M16	23.67	24.00	23.67	24.00	9.82	10.2	9.82	10.18
M18	26.67	27.00	26.67	27.00	11.28	11.7	11.285	11.715
M20	29.67	30.00	29.67	30.00	12.28	12.7	12.285	12.715
M22	31.61	32.00	33.38	34.00	13.78	14.2	13.785	14.215
M24	35.38	36.00	35.38	36.00	14.78	15.2	14.785	15.215
M27	40.00	41.00	40.00	41.00	16.65	17.4	16.65	17.35
M30	45.00	46.00	45.00	46.00	18.28	19.1	18.28	19.12
M33	49.00	50.00	49.00	50.00	20.58	21.4	20.58	21.42
M36	53.80	55.00	53.80	55.00	22.08	22.9	22.08	22.92
M39	58.80	60.00	58.80	60.00	24.58	25.4	24.58	25.42
M42	63.10	65.00	63.10	65.00	25.58	26.4	25.58	26.42
M45	68.10	70.00	68.10	70.00	27.58	28.4	27.58	28.42
M48	73.10	75.00	73.10	75.00	29.58	30.4	29.58	30.42
M52	78.10	80.00	78.10	80.00	32.5	33.5	32.5	33.5
M56	82.80	85.00	82.80	85.00	34.5	35.5	34.5	35.5
M60	87.80	90.00	87.80	90.00	37.5	38.5	37.5	38.5
M64	92.80	95.00	92.80	95.00	39.5	40.5	39.5	40.5
M72	102.80	105.00	--	--	44.5	45.5	--	--