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DIN 931 (-2) – 2009 – Bu lông lục giác

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DIN 931 (-2) – 2009 – Bu lông lục giác

Screw Thread		(M68)	M72	(M76)	M80	M90	M100	M110	M125	M140	M160
d
P	Pitch	6	6	6	6	6	6	6	6	6	6
b	125＜L≤200	148	156	164	172	192	–	–	–	–	–
b	L＞200	161	169	177	185	205	225	245	275	305	345
c	min	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
c	max	1	1	1	2	2	2	2	2	2	2
d_a	max	75	79	83	87	97	107	117	132	147	167
d_s	max=nominal size	68	72	76	88	90	100	110	125	140	160
d_s	min	67.26	71.26	75.26	79.26	89.13	99.13	109.13	124	139	159
d_w	min	92.9	97.7	102.1	106.9	121.1	135.4	144.9	168.6	185.6	214.1
e	min	110.51	116.16	121.81	127.46	144.08	161.02	172.32	200.57	220.8	254.7
k	Nominal Size	43	45	48	50	57	63	69	79	88	100
	min	42.5	44.5	47.5	49.5	56.4	62.4	68.4	78.4	87.3	99.3
	max	43.5	45.5	48.5	50.5	57.6	63.6	69.6	79.6	88.7	100.7
k₁	min	29.8	31.2	33.2	34.6	40.3	43.7	47.9	54.9	61.1	69.5
r	min	2	2	2	2	2.5	2.5	2.5	2.5	2.5	2.5
s	max=nominal size	100	105	110	115	130	145	155	180	200	230
s	min	97.8	102.8	107.8	112.8	127.5	142.5	152.5	177.5	195.4	225.4
Length of Thread b		–	–	–	–	–	–	–	–	–	–

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