Screw-bolt.
One having a screw-thread on its shank.
See bolt,
Fig. 768.
Fig. 4710 illustrates various carriage screw-bolts.
a, axle-clip. | e, elliptic head. |
b, carriage. | f, T-headed, or shaft. |
c, step. | g, cone-headed bolt. |
d, pointed tire. |
See
Fig. 768, page 322.
|
Screw-bolts. |
Screw-Threads, Bolt-Heads, and Nuts, as determined and recommended by Committee of Franklin Institute of Philadelphia, 1864.
Number of Threads per inch.
Angle 60°
Diameter of Bolt. | Threads. | Diameter of Bolt. | Threads. | Diameter of Bolt. | Threads. | Diameter of Bolt. | Threads. | Diameter of Bolt. | Threads. |
Ins. | No. | Ins. | No. | Ins. | No. | Ins. | No. | Ins. | No. |
1/4 | 20 | 3/4 | 10 | 1 5/8 | 5 1/2 | 3 | 3 1/2 | 4 3/4 | 2 5/8 |
5/16 | 18 | 7/8 | 9 | 1 3/4 | 5 | 3 1/4 | 3 1/2 | 5 | 2 1/2 |
3/8 | 16 | 1 | 8 | 1 7/8 | 5 | 3 1/2 | 3 1/4 | 5 1/4 | 2 1/2 |
7/16 | 14 | 1 1/8 | 7 | 2 | 4 1/2 | 3 3/4 | 3 | 5 1/2 | 2 3/8 |
1/2 | 13 | 1 1/4 | 7 | 2 1/4 | 4 1/2 | 4 | 3 | 5 3/4 | 2 3/8 |
9/16 | 12 | 1 3/8 | 6 | 2 1/2 | 4 | 4 1/4 | 2 7/8 | 6 | 2 1/4 |
5/8 | 11 | 1 1/2 | 6 | 2 3/4 | 4 | 4 1/2 | 2 3/4 |