Table 3
ARow |
BMajor Diameter (in.) |
CLead (in./rev.) |
DEffective Threads per Inch* |
EThreads per Inch |
FStarts |
GMinor Diameter (in.) |
HScrew Weight (lbs./ft.) |
IStatic Load Rating (Standard Nut) (lbs.) | JOperating Load Rating (Standard Nut) (lbs.) | KStatic Load Rating (Heavy Duty Nut) (lbs.) | LOperating Load Rating (Heavy Duty Nut) (lbs.) |
MProduct Line |
$Prices & Products RH (Right Hand) LH (Left Hand) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" | 0.188 | 5.319 | 5.319 | 1 | 0.180 | 0.130 | NA | 25 | NA | NA | Freewheeling | RH | |
| 5/16" | 0.125 | 8 | 8 | 2 | 0.276 | 0.239 | NA | 75 | NA | NA | Freewheeling | RH | |
| 3/8" | 0.125 | 8 | 8 | 1 | 0.300 | 0.310 | 1,350 | 135 | 2,700 | 270 | Recirculating | RH, LH | |
| 1/2" | 0.500 | 2 | 4 | 2 | 0.355 | 0.500 | 4,000 | 750 | NA | NA | Recirculating | RH | |
| 9/16" | 0.083 | 12 | 12 | 1 | 0.458 | 0.670 | NA | 150 | NA | NA | Freewheeling | RH | |
| 5/8" | 0.200 | 5 | 5 | 1 | 0.480 | 0.820 | 6,000 | 750 | 10,500 | 1,300 | Recirculating | RH, LH | |
| 5/8" | 0.188 | 5.319 | 5.319 | 2 | 0.560 | 0.959 | NA | 300 | NA | NA | Freewheeling | RH | |
| 3/4" | 0.200 | 5 | 5 | 1 | 0.594 | 1.230 | 9,000 | 900 | 18,000 | 1,900 | Recirculating | RH, LH | |
| 3/4" | 0.250 | 4 | 4 | 1 | 0.000 | 1.310 | NA | 450 | NA | NA | Freewheeling | RH | |
| 3/4" | 0.500 | 2 | 4 | 2 | 0.635 | 1.409 | 20,000 | 3,100 | NA | NA | Recirculating | RH | |
| 1" | 0.250 | 4 | 4 | 1 | 0.820 | 2.200 | 13,000 | 1,600 | 26,000 | 2,900 | Recirculating | RH, LH | |
| 1" | 0.280 | 3.571 | 3.571 | 1 | 0.831 | 2.230 | NA | 750 | NA | NA | Freewheeling | RH | |
| 1" | 0.333 | 3 | 3 | 1 | 0.752 | 2.030 | 16,000 | 2,100 | NA | NA | Recirculating | RH | |
| 1" | 0.500 | 2 | 4 | 2 | 0.820 | 2.200 | 28,000 | 3,700 | NA | NA | Recirculating | RH | |
| 1" | 1.000 | 1 | 4 | 4 | 0.820 | 2.200 | 11,200 | 2,100 | NA | NA | Recirculating | RH, LH | |
| 1 1/2" | 0.500 | 2 | 4 | 2 | 1.125 | 4.679 | 57,500 | 9,300 | NA | NA | Recirculating | RH | |
| 1 1/2" | 1.000 | 1 | 2 | 2 | 1.125 | 4.679 | 33,300 | 7,000 | NA | NA | Recirculating | RH |
*Effective threads per inch is the reciprocal of the lead. For screws with more than one start it is not the actual threads per inch.