| Dimensions of Round Head Ribbed Neck Bolts (Inch) | |||||||||||||||
| Nominal Size or Basic Bolt Diameter [Note (1)] |
Body Diameter, E | Head Diameter, A | Head Height, H | Maximum Head-to-Rib Length, M |
Number of Ribs, N |
Minimum Diameter Over Ribs, O |
Leng th of Depth Over Ribs, P | Maximum Fillet Radius, R [Note (2)] |
|||||||
| =< 7/8 Inch | 1 in. and 1 1/8 in. | >= 1 1/4 in. | |||||||||||||
| Max. | Min. | Max. | Min. | Max. | Min. | =< 7/8 Inch | >=1 Inch | Apporx. | ±0.031 | ±0.031 | ±0.031 | ||||
|
No.10
|
0.19
|
0.199
|
0.182
|
0.469
|
0.438
|
0.114
|
0.094
|
0.062
|
0.094
|
9
|
0.21
|
0.25
|
0.407
|
0.594
|
0.031
|
|
1/4
|
0.25
|
0.26
|
0.237
|
0.594
|
0.563
|
0.145
|
0.125
|
0.062
|
0.094
|
10
|
0.274
|
0.25
|
0.407
|
0.594
|
0.031
|
|
5/16
|
0.3125
|
0.324
|
0.298
|
0.719
|
0.688
|
0.176
|
0.156
|
0.062
|
0.094
|
12
|
0.34
|
0.25
|
0.407
|
0.594
|
0.031
|
|
3/8
|
0.375
|
0.388
|
0.36
|
0.844
|
0.782
|
0.208
|
0.188
|
0.062
|
0.094
|
12
|
0.405
|
0.25
|
0.407
|
0.594
|
0.031
|
|
7/16
|
0.4375
|
0.452
|
0.421
|
0.969
|
0.907
|
0.239
|
0.219
|
0.062
|
0.094
|
14
|
0.47
|
0.25
|
0.407
|
0.594
|
0.031
|
|
1/2
|
0.5
|
0.515
|
0.483
|
1.094
|
1.032
|
0.27
|
0.25
|
0.062
|
0.094
|
16
|
0.534
|
0.25
|
0.407
|
0.594
|
0.031
|
|
5/8
|
0.625
|
0.642
|
0.605
|
1.344
|
1.219
|
0.344
|
0.313
|
0.125
|
0.125
|
19
|
0.66
|
0.313
|
0.438
|
0.625
|
0.062
|
|
3/4
|
0.75
|
0.768
|
0.729
|
1.594
|
1.469
|
0.406
|
0.375
|
0.125
|
0.125
|
22
|
0.785
|
0.313
|
0.438
|
0.625
|
0.062
|
GENERAL NOTE: For additional requirements, refer to section 2, General Data.
NOTES:
(1) Where specifying nominal size in decimals, zeros preceding decimal and in the four th decimal place shall be omitted.
(2) The minimum radius is one half of the value shown.