hex Head Bolt DIN933 High Strength Black Carbon Steel Stainless Steel Best quality Competitive Price China Manufacturer

Hex Head Bolt Introduction

DIN933 hex bolt is one of the commonly used hex bolts. It is available in carbon steel, stainless steel, etc.

Its size is basically the same as the international standard ISO4017 and the Chinese standard GB/T5783.

Two black carbon steel DIN933 hex head bolts

DIN 933 Hex Head Bolt Details

SIZE: M5-M56

MATEAIL: Carbon Steel, Stainless Steel

STANDARD: DIN933, EN ISO4017

GRADE: 4.8, 8.8, 10.9, 12.9

SURFACE TREATMENT: ZP, HDG, BLACK, Dacromet

CUSTOMIZED SUPPORT: YES

DIN 933 Hex Head Bolt Specifications

    Screw Thread
d
    M1.6
    M2
    M2.5
    M3
    (M3.5)
    M4
    M5
    M6
    (M7)
    M8
    M10
    M12
    (M14)
    M16
  


    P
    Pitch
    　
    0.35
    0.4
    0.45
    0.5
    0.6
    0.7
    0.8
    1
    1
    1.25
    1.5
    1.75
    2
    2
  

    a
    max
    　
    1.05
    1.2
    1.35
    1.5
    1.8
    2.1
    2.4
    3
    3
    3.75
    4.5
    5.25
    6
    6
  

    c
    min
    　
    0.1
    0.1
    0.1
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.2
  

    max
    　
    0.25
    0.25
    0.25
    0.4
    0.4
    0.4
    0.5
    0.5
    0.5
    0.6
    0.6
    0.6
    0.6
    0.8
  

    da
    max
    　
    2
    2.6
    3.1
    3.6
    4.1
    4.7
    5.7
    6.8
    7.8
    9.2
    11.2
    13.7
    15.7
    17.7
  

    dw
    Grade A
    min
    2.4
    3.2
    4.1
    4.6
    5.1
    5.9
    6.9
    8.9
    9.6
    11.6
    15.6
    17.4
    20.5
    22.5
  

    Grade B
    min
    -
    -
    -
    -
    -
    5.7
    6.7
    8.7
    9.4
    11.4
    15.4
    17.2
    20.1
    22
  

    e
    Grade A
    min
    3.41
    4.32
    5.45
    6.01
    6.58
    7.66
    8.79
    11.05
    12.12
    14.38
    18.9
    21.1
    24.49
    26.75
  

    Grade B
    min
    -
    -
    -
    -
    -
    7.5
    8.63
    10.89
    11.94
    14.2
    18.72
    20.88
    23.91
    26.17
  

    k
    Nominal Size
    　
    1.1
    1.4
    1.7
    2
    2.4
    2.8
    3.5
    4
    4.8
    5.3
    6.4
    7.5
    8.8
    10
  

    Grade A
    min
    0.98
    1.28
    1.58
    1.88
    2.28
    2.68
    3.35
    3.85
    4.65
    5.15
    6.22
    7.32
    8.62
    9.82
  

    max
    1.22
    1.52
    1.82
    2.12
    2.52
    2.92
    3.65
    4.15
    4.95
    5.45
    6.56
    7.68
    8.98
    10.18
  

    Grade B
    min
    -
    -
    -
    -
    -
    2.6
    3.26
    3.76
    4.56
    5.06
    6.11
    7.21
    8.51
    9.71
  

    max
    -
    -
    -
    -
    -
    3
    3.74
    4.24
    5.04
    5.54
    6.69
    7.79
    9.09
    10.29
  

    k1
    min
    　
    0.7
    0.9
    1.1
    1.3
    1.6
    1.9
    2.28
    2.63
    3.19
    3.54
    4.28
    5.05
    5.96
    6.8
  

    r
    min
    　
    0.1
    0.1
    0.1
    0.1
    0.1
    0.2
    0.2
    0.25
    0.25
    0.4
    0.4
    0.6
    0.6
    0.6
  

    s
    max=nominal size
    　
    3.2
    4
    5
    5.5
    6
    7
    8
    10
    11
    13
    17
    19
    22
    24
  

    Grade A
    min
    3.02
    3.82
    4.82
    5.32
    5.82
    6.78
    7.78
    9.78
    10.73
    12.73
    16.73
    18.67
    21.67
    23.67
  

    Grade B
    min
    -
    -
    -
    -
    -
    6.64
    7.64
    9.64
    10.57
    12.57
    16.57
    18.48
    21.16
    23.16
  

    　                  
  

       Screw Thread
d
    (M18)
    M20
    (M22)
    M24
    (M27)
    M30
    (M33)
    M36
    (M39)
    M42
    (M45)
    M48
    (M52)
    　
  

    P
    Pitch
    　
    2.5
    2.5
    2.5
    3
    3
    3.5
    3.5
    4
    4
    4.5
    4.5
    5
    5
    　
  

    a
    max
    　
    7.5
    7.5
    7.5
    9
    9
    10.5
    10.5
    12
    12
    13.5
    13.5
    15
    15
    　
  

    c
    min
    　
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.3
    0.3
    0.3
    0.3
    　
  

    max
    　
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    1
    1
    1
    1
    1
    　
  

    da
    max
    　
    20.2
    22.4
    24.4
    26.4
    30.4
    33.4
    36.4
    39.4
    42.4
    45.6
    48.6
    52.6
    56.6
    　
  

    dw
    Grade A
    min
    25.3
    28.2
    30
    33.6
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    24.8
    27.7
    29.5
    33.2
    38
    42.7
    46.5
    51.1
    55.9
    59.9
    64.7
    69.4
    74.2
    　
  

    e
    Grade A
    min
    30.14
    33.53
    35.72
    39.98
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    29.56
    32.95
    35.03
    39.55
    45.2
    50.85
    55.37
    60.79
    66.44
    71.3
    76.95
    82.6
    88.25
    　
  

    k
    Nominal Size
    　
    11.5
    12.5
    14
    15
    17
    18.7
    21
    22.5
    25
    26
    28
    30
    33
    　
  

    
Grade A
    min
    11.28
    12.28
    13.78
    14.78
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    max
    11.72
    12.72
    14.22
    15.22
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    
Grade B
    min
    11.15
    12.15
    13.65
    14.65
    16.65
    18.28
    20.58
    22.08
    24.58
    25.58
    27.58
    29.58
    32.5
    　
  

    max
    11.85
    12.85
    14.35
    15.35
    17.35
    19.12
    21.42
    22.92
    25.42
    26.42
    28.42
    30.42
    33.5
    　
  

    k1
    min
    　
    7.8
    8.5
    9.6
    10.3
    11.7
    12.8
    14.4
    15.5
    17.2
    17.9
    19.3
    20.9
    22.8
    　
  

    r
    min
    　
    0.6
    0.8
    0.8
    0.8
    1
    1
    1
    1
    1
    1.2
    1.2
    1.6
    1.6
    　
  

    s
    max=nominal size
    　
    27
    30
    32
    36
    41
    46
    50
    55
    60
    65
    70
    75
    80
    　
  

    Grade A
    min
    26.67
    29.67
    31.61
    35.38
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    26.15
    29.16
    31
    35
    40
    45
    49
    53.8
    58.8
    63.1
    68.1
    73.1
    78.1
    　
  

Screw Thread d	M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	(M7)	M8	M10	M12	(M14)	M16
P	Pitch		0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1	1.25	1.5	1.75	2	2
a	max		1.05	1.2	1.35	1.5	1.8	2.1	2.4	3	3	3.75	4.5	5.25	6	6
c	min		0.1	0.1	0.1	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.2
max		0.25	0.25	0.25	0.4	0.4	0.4	0.5	0.5	0.5	0.6	0.6	0.6	0.6	0.8
da	max		2	2.6	3.1	3.6	4.1	4.7	5.7	6.8	7.8	9.2	11.2	13.7	15.7	17.7
dw	Grade A	min	2.4	3.2	4.1	4.6	5.1	5.9	6.9	8.9	9.6	11.6	15.6	17.4	20.5	22.5
Grade B	min	-	-	-	-	-	5.7	6.7	8.7	9.4	11.4	15.4	17.2	20.1	22
e	Grade A	min	3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05	12.12	14.38	18.9	21.1	24.49	26.75
Grade B	min	-	-	-	-	-	7.5	8.63	10.89	11.94	14.2	18.72	20.88	23.91	26.17
k	Nominal Size		1.1	1.4	1.7	2	2.4	2.8	3.5	4	4.8	5.3	6.4	7.5	8.8	10
Grade A	min	0.98	1.28	1.58	1.88	2.28	2.68	3.35	3.85	4.65	5.15	6.22	7.32	8.62	9.82
max	1.22	1.52	1.82	2.12	2.52	2.92	3.65	4.15	4.95	5.45	6.56	7.68	8.98	10.18
Grade B	min	-	-	-	-	-	2.6	3.26	3.76	4.56	5.06	6.11	7.21	8.51	9.71
max	-	-	-	-	-	3	3.74	4.24	5.04	5.54	6.69	7.79	9.09	10.29
k1	min		0.7	0.9	1.1	1.3	1.6	1.9	2.28	2.63	3.19	3.54	4.28	5.05	5.96	6.8
r	min		0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.25	0.4	0.4	0.6	0.6	0.6
s	max=nominal size		3.2	4	5	5.5	6	7	8	10	11	13	17	19	22	24
Grade A	min	3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	10.73	12.73	16.73	18.67	21.67	23.67
Grade B	min	-	-	-	-	-	6.64	7.64	9.64	10.57	12.57	16.57	18.48	21.16	23.16

Screw Thread d	(M18)	M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42	(M45)	M48	(M52)
P	Pitch		2.5	2.5	2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5
a	max		7.5	7.5	7.5	9	9	10.5	10.5	12	12	13.5	13.5	15	15
c	min		0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.3	0.3
max		0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	1	1	1	1	1
da	max		20.2	22.4	24.4	26.4	30.4	33.4	36.4	39.4	42.4	45.6	48.6	52.6	56.6
dw	Grade A	min	25.3	28.2	30	33.6	-	-	-	-	-	-	-	-	-
Grade B	min	24.8	27.7	29.5	33.2	38	42.7	46.5	51.1	55.9	59.9	64.7	69.4	74.2
e	Grade A	min	30.14	33.53	35.72	39.98	-	-	-	-	-	-	-	-	-
Grade B	min	29.56	32.95	35.03	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
k	Nominal Size		11.5	12.5	14	15	17	18.7	21	22.5	25	26	28	30	33
Grade A	min	11.28	12.28	13.78	14.78	-	-	-	-	-	-	-	-	-
max	11.72	12.72	14.22	15.22	-	-	-	-	-	-	-	-	-
Grade B	min	11.15	12.15	13.65	14.65	16.65	18.28	20.58	22.08	24.58	25.58	27.58	29.58	32.5
max	11.85	12.85	14.35	15.35	17.35	19.12	21.42	22.92	25.42	26.42	28.42	30.42	33.5
k1	min		7.8	8.5	9.6	10.3	11.7	12.8	14.4	15.5	17.2	17.9	19.3	20.9	22.8
r	min		0.6	0.8	0.8	0.8	1	1	1	1	1	1.2	1.2	1.6	1.6
s	max=nominal size		27	30	32	36	41	46	50	55	60	65	70	75	80
Grade A	min	26.67	29.67	31.61	35.38	-	-	-	-	-	-	-	-	-
Grade B	min	26.15	29.16	31	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1

Equivalent Standard for DIN 933 Hex Head Bolt - ISO 4017

DIN EN ISO 4017 Hex Head Bolts

    Screw Thread
d
    M1.6
    M2
    M2.5
    M3
    (M3.5)
    M4
    M5
    M6
    M8
    M10
    M12
    (M14)
    M16
    (M18)
    M20
  


    P
    Pitch
    　
    0.35
    0.4
    0.45
    0.5
    0.6
    0.7
    0.8
    1
    1.25
    1.5
    1.75
    2
    2
    2.5
    2.5
  

    a
    max
    　
    1.05
    1.2
    1.35
    1.5
    1.8
    2.1
    2.4
    3
    4
    4.5
    5.3
    6
    6
    7.5
    7.5
  

    min
    　
    0.35
    0.4
    0.45
    0.5
    0.6
    0.7
    0.8
    1
    1.25
    1.5
    1.75
    2
    2
    2.5
    2.5
  

    c
    max
    　
    0.25
    0.25
    0.25
    0.4
    0.4
    0.4
    0.5
    0.5
    0.6
    0.6
    0.6
    0.6
    0.8
    0.8
    0.8
  

    min
    　
    0.1
    0.1
    0.1
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.15
    0.2
    0.2
    0.2
  

    da
    max
    　
    2
    2.6
    3.1
    3.6
    4.1
    4.7
    5.7
    6.8
    9.2
    11.2
    13.7
    15.7
    17.7
    20.2
    22.4
  

    dw
    Grade   A
    min
    2.27
    3.07
    4.07
    4.57
    5.07
    5.88
    6.88
    8.88
    11.63
    14.63
    16.63
    19.64
    22.49
    25.34
    28.19
  

    Grade B
    min
    2.3
    2.95
    3.95
    4.45
    4.95
    5.74
    6.74
    8.74
    11.47
    14.47
    16.47
    19.15
    22
    24.85
    27.7
  

    e
    Grade   A
    min
    3.41
    4.32
    5.45
    6.01
    6.58
    7.66
    8.79
    11.05
    14.38
    17.77
    20.03
    23.36
    26.75
    30.14
    33.53
  

    Grade B
    min
    3.28
    4.18
    5.31
    5.88
    6.44
    7.5
    8.63
    10.89
    14.2
    17.59
    19.85
    22.78
    26.17
    29.56
    32.95
  

    k
    Nominal   Size
    　
    1.1
    1.4
    1.7
    2
    2.4
    2.8
    3.5
    4
    5.3
    6.4
    7.5
    8.8
    10
    11.5
    12.5
  

    Grade A
    max
    1.225
    1.525
    1.825
    2.125
    2.525
    2.925
    3.65
    4.15
    5.45
    6.58
    7.68
    8.98
    10.18
    11.715
    12.715
  

    min
    0.975
    1.275
    1.575
    1.875
    2.275
    2.675
    3.35
    3.85
    5.15
    6.22
    7.32
    8.62
    9.82
    11.285
    12.285
  

    Grade B
    max
    1.3
    1.6
    1.9
    2.2
    2.6
    3
    3.74
    4.24
    5.54
    6.69
    7.79
    9.09
    10.29
    11.85
    12.85
  

    min
    0.9
    1.2
    1.5
    1.8
    2.2
    2.6
    3.26
    3.76
    5.06
    6.11
    7.21
    8.51
    9.71
    11.15
    12.15
  

    k1
    Grade   A
    min
    0.68
    0.89
    1.1
    1.31
    1.59
    1.87
    2.35
    2.7
    3.61
    4.35
    5.12
    6.03
    6.87
    7.9
    8.6
  

    Grade B
    min
    0.63
    0.84
    1.05
    1.26
    1.54
    1.82
    2.28
    2.63
    3.54
    4.28
    5.05
    5.96
    6.8
    7.81
    8.51
  

    r
    min
    　
    0.1
    0.1
    0.1
    0.1
    0.1
    0.2
    0.2
    0.25
    0.4
    0.4
    0.6
    0.6
    0.6
    0.6
    0.8
  

    s
    max=nominal size
    　
    3.2
    4
    5
    5.5
    6
    7
    8
    10
    13
    16
    18
    21
    24
    27
    30
  

    Grade A
    min
    3.02
    3.82
    4.82
    5.32
    5.82
    6.78
    7.78
    9.78
    12.73
    15.73
    17.73
    20.67
    23.67
    26.67
    29.67
  

    Grade B
    min
    2.9
    3.7
    4.7
    5.2
    5.7
    6.64
    7.64
    9.64
    12.57
    15.57
    17.57
    20.16
    23.16
    26.16
    29.16
  

    　                   
  

       Screw Thread
d
    (M22)
    M24
    (M27)
    M30
    (M33)
    M36
    (M39)
    M42
    (M45)
    M48
    (M52)
    M56
    (M60)
    M64
    　
  

    P
    Pitch
    　
    2.5
    3
    3
    3.5
    3.5
    4
    4
    4.5
    4.5
    5
    5
    5.5
    5.5
    6
    　
  

    a
    max
    　
    7.5
    9
    9
    10.5
    10.5
    12
    12
    13.5
    13.5
    15
    15
    16.5
    16.5
    18
    　
  

    min
    　
    2.5
    3
    3
    3.5
    3.5
    4
    4
    4.5
    4.5
    5
    5
    5.5
    5.5
    6
    　
  

    c
    max
    　
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    1
    1
    1
    1
    1
    1
    1
    1
    　
  

    min
    　
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    　
  

    da
    max
    　
    24.4
    26.4
    30.4
    33.4
    36.4
    39.4
    42.4
    45.6
    48.6
    52.6
    56.6
    63
    67
    71
    　
  

    dw
    Grade   A
    min
    31.71
    33.61
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    31.35
    33.25
    38
    42.75
    46.55
    51.11
    55.86
    59.95
    64.7
    69.45
    74.2
    78.66
    83.41
    88.16
    　
  

    e
    Grade   A
    min
    37.72
    39.98
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    37.29
    39.55
    45.2
    50.85
    55.37
    60.79
    66.44
    71.3
    76.95
    82.6
    88.25
    93.56
    99.21
    104.86
    　
  

    k
    Nominal   Size
    　
    14
    15
    17
    18.7
    21
    22.5
    25
    26
    28
    30
    33
    35
    38
    40
    　
  

    Grade A
    max
    14.215
    15.215
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    min
    13.785
    14.785
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    max
    14.35
    15.35
    17.35
    19.12
    21.42
    22.92
    25.42
    26.42
    28.42
    30.42
    33.5
    35.5
    38.5
    40.5
    　
  

    min
    13.65
    14.65
    16.65
    18.28
    20.58
    22.08
    24.58
    25.58
    27.58
    29.58
    32.5
    34.5
    37.5
    39.5
    　
  

    k1
    Grade   A
    min
    9.65
    10.35
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    9.56
    10.26
    11.66
    12.8
    14.41
    15.46
    17.21
    17.91
    19.31
    20.71
    22.75
    24.15
    26.25
    27.65
    　
  

    r
    min
    　
    0.8
    0.8
    1
    1
    1
    1
    1
    1.2
    1.2
    1.6
    1.6
    2
    2
    2
    　
  

    s
    max=nominal   size
    　
    34
    36
    41
    46
    50
    55
    60
    65
    70
    75
    80
    85
    90
    95
    　
  

    Grade A
    min
    33.38
    35.38
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    　
  

    Grade B
    min
    33
    35
    40
    45
    49
    53.8
    58.8
    63.1
    68.1
    73.1
    78.1
    82.8
    87.8
    92.8   
    　
  

Screw Thread d	M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20
P	Pitch		0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
a	max		1.05	1.2	1.35	1.5	1.8	2.1	2.4	3	4	4.5	5.3	6	6	7.5	7.5
min		0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
c	max		0.25	0.25	0.25	0.4	0.4	0.4	0.5	0.5	0.6	0.6	0.6	0.6	0.8	0.8	0.8
min		0.1	0.1	0.1	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.2	0.2	0.2
da	max		2	2.6	3.1	3.6	4.1	4.7	5.7	6.8	9.2	11.2	13.7	15.7	17.7	20.2	22.4
dw	Grade A	min	2.27	3.07	4.07	4.57	5.07	5.88	6.88	8.88	11.63	14.63	16.63	19.64	22.49	25.34	28.19
Grade B	min	2.3	2.95	3.95	4.45	4.95	5.74	6.74	8.74	11.47	14.47	16.47	19.15	22	24.85	27.7
e	Grade A	min	3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05	14.38	17.77	20.03	23.36	26.75	30.14	33.53
Grade B	min	3.28	4.18	5.31	5.88	6.44	7.5	8.63	10.89	14.2	17.59	19.85	22.78	26.17	29.56	32.95
k	Nominal Size		1.1	1.4	1.7	2	2.4	2.8	3.5	4	5.3	6.4	7.5	8.8	10	11.5	12.5
Grade A	max	1.225	1.525	1.825	2.125	2.525	2.925	3.65	4.15	5.45	6.58	7.68	8.98	10.18	11.715	12.715
min	0.975	1.275	1.575	1.875	2.275	2.675	3.35	3.85	5.15	6.22	7.32	8.62	9.82	11.285	12.285
Grade B	max	1.3	1.6	1.9	2.2	2.6	3	3.74	4.24	5.54	6.69	7.79	9.09	10.29	11.85	12.85
min	0.9	1.2	1.5	1.8	2.2	2.6	3.26	3.76	5.06	6.11	7.21	8.51	9.71	11.15	12.15
k1	Grade A	min	0.68	0.89	1.1	1.31	1.59	1.87	2.35	2.7	3.61	4.35	5.12	6.03	6.87	7.9	8.6
Grade B	min	0.63	0.84	1.05	1.26	1.54	1.82	2.28	2.63	3.54	4.28	5.05	5.96	6.8	7.81	8.51
r	min		0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.4	0.4	0.6	0.6	0.6	0.6	0.8
s	max=nominal size		3.2	4	5	5.5	6	7	8	10	13	16	18	21	24	27	30
Grade A	min	3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67
Grade B	min	2.9	3.7	4.7	5.2	5.7	6.64	7.64	9.64	12.57	15.57	17.57	20.16	23.16	26.16	29.16

Screw Thread d	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42	(M45)	M48	(M52)	M56	(M60)	M64
P	Pitch		2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5	5.5	5.5	6
a	max		7.5	9	9	10.5	10.5	12	12	13.5	13.5	15	15	16.5	16.5	18
min		2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5	5.5	5.5	6
c	max		0.8	0.8	0.8	0.8	0.8	0.8	1	1	1	1	1	1	1	1
min		0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
da	max		24.4	26.4	30.4	33.4	36.4	39.4	42.4	45.6	48.6	52.6	56.6	63	67	71
dw	Grade A	min	31.71	33.61	-	-	-	-	-	-	-	-	-	-	-	-
Grade B	min	31.35	33.25	38	42.75	46.55	51.11	55.86	59.95	64.7	69.45	74.2	78.66	83.41	88.16
e	Grade A	min	37.72	39.98	-	-	-	-	-	-	-	-	-	-	-	-
Grade B	min	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25	93.56	99.21	104.86
k	Nominal Size		14	15	17	18.7	21	22.5	25	26	28	30	33	35	38	40
Grade A	max	14.215	15.215	-	-	-	-	-	-	-	-	-	-	-	-
min	13.785	14.785	-	-	-	-	-	-	-	-	-	-	-	-
Grade B	max	14.35	15.35	17.35	19.12	21.42	22.92	25.42	26.42	28.42	30.42	33.5	35.5	38.5	40.5
min	13.65	14.65	16.65	18.28	20.58	22.08	24.58	25.58	27.58	29.58	32.5	34.5	37.5	39.5
k1	Grade A	min	9.65	10.35	-	-	-	-	-	-	-	-	-	-	-	-
Grade B	min	9.56	10.26	11.66	12.8	14.41	15.46	17.21	17.91	19.31	20.71	22.75	24.15	26.25	27.65
r	min		0.8	0.8	1	1	1	1	1	1.2	1.2	1.6	1.6	2	2	2
s	max=nominal size		34	36	41	46	50	55	60	65	70	75	80	85	90	95
Grade A	min	33.38	35.38	-	-	-	-	-	-	-	-	-	-	-	-
Grade B	min	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1	82.8	87.8	92.8

FAQs

What are the uses of hex head bolts?

Hex head bolts have a hexagonal head design and are usually used with hex nuts. Hex head bolts are widely used in a variety of fields and applications, some of which include:

1. Machinery manufacturing: hex head bolts are used to connect mechanical parts, such as machine tools, engines, transmission systems, etc. They provide reliable fastening connections so that mechanical equipment can operate properly.

2. Construction and building structures: In construction and building structures, hex head bolts are used to connect important components such as steel structures, bridges, and building frames. Hex head bolts ensure the building's structural stability and safety.

3. Automobile manufacturing: In the automobile manufacturing industry, hex head bolts are used to connect various components of the vehicle, such as engine, chassis, suspension system, etc. Hex head bolts can withstand the stress of high temperature, high pressure and vibration environments while maintaining a strong connection.

4. Aerospace: In the aerospace field, hex head bolts are widely used in manufacturing aircraft, rockets, satellites and other aerospace components. The hex head bolts need to have properties such as lightweight, high strength and corrosion resistance to meet stringent aerospace requirements.

5. Equipment and machinery maintenance: During equipment and machinery maintenance, hex head bolts are often used to replace damaged bolts or tighten them. Hex head bolts are standard fasteners commonly used in repair and maintenance work.

Hex head bolts play an important role in various fields such as industrial production, construction engineering, transportation, etc., and are a key component of connection and fixation.

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