Quick$crews® Fastener Guide
Page 1 Size Specifications
| Nominal or Screw Diameter |
Threads per inch | Major |
Minor Diameter |
Length Range |
Min.Torque lbs./inch |
|---|---|---|---|---|---|
| #5 .125 | 14 |
.128/.122 |
.078/.072 |
3/8" -
1" |
18 lbs./inch |
| #6 .138 | 13 |
.141/.135 |
.0787/.087 |
3/8" -
1-1/2" |
25 lbs./inch |
| #7 .151 | 12 |
.154/.148 |
.0874/.096 |
1/2" -
2" |
25 lbs./inch |
| #8 .164 | 9 |
.168/.161 |
.0937/.1028 |
1/2" -
3" |
32 lbs./inch |
| #8 .164 | 11 |
.168/.161 |
.0937/.1028 |
1/2" -
3" |
32 lbs./inch |
| #9 .177 | 10 |
.181/.174 |
.0984/.1098 |
1" -
4" |
37 lbs./inch |
| #10 .190 | 9 |
.194/.187 |
.1098/.1189 |
5/8" -
6" |
45 lbs./inch |
| #12 .216 | 8 |
.230/.225 |
.1695/.1685 |
5/8" -
1-3/4" |
65 lbs./inch |
| #14 .250 | 7 |
.243/.235 |
.175/.165 |
2-1/2" -
4" |
100 lbs./inch |
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Did you Know ¿?
In 1770, English instrument maker, Jesse Ramsden (1735-1800) invented the first satisfactry screw-cutting lathe.
Screw Idioms
• Have a screw loose
• Have one's head screwed on
• Put the screws on
• Put the screws to
• Screw around
• Screw into
• Screw off
• Screw top
• Screw up
• Screw someone over
• Screw someone up


