Click Specification

(Non-preferred) dimensions in parentheses.

High-strength Structural Bolting Assemblies For Preloading-Part 7:system HV-Hexagon Bolt With Large Width Across Flats And Nut Assemblies M39～m64

GB /T 32076.7 - 2015

Display drawing:

Nominal Length L Tips:seclect Nominal Length L and get Thread length.

Screw Thread
d

(M39)

M42

(M45)

M48

(M52)

M56

M64

P	Pitch
b	Ref.
c	min
c	max
d_a	max
d_s	Nominal Size
	min
	max
d_w	min
e	min
k	Nominal Size
	min
	max
k₁	min
r	min
s	max=nominal size
s	min

4	4.5	4.5	5	5	5.5	6
68	74	76	82	85	90	100
0.5	0.5	0.5	0.5	0.5	0.5	0.5
1	1	1	1	1	1	1
45.0	48.0	52.0	55.0	60.0	64.2	73.2
39	42	45	48	52	56	64
38	41	44	47	51	54.8	62.8
40	43	46	49	53	57.2	65.2
60.00	64.70	69.45	74.20	78.80	83.40	92.90
71.3	76.95	82.6	88.25	93.79	99.2	110.5
25	26	28	30	33	35	40
23.95	24.95	26.95	28.95	31.75	33.75	38.75
26.05	27.05	29.05	31.05	34.25	36.25	41.25
16.76	17.46	18.86	20.26	22.23	23.63	27.13
2.5	2.5	3.0	3.0	3.5	3.5	4.0
65	70	75	80	85	90	100
63.1	68.1	73.1	78.1	83	87.8	97.8

Length of Thread b

①,tol.± IT17

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