Phenolic 4 Lobe Knob - Tapped Through
JBF National’s phenolic 4 lobe hand knob, (also known as a clamping knob) comes tapped trough with a molded brass insert. The 4 lobe design ensures positive palm grip. The lack of mold lines, combined with the smooth edges of its phenolic grip means complete operator hand comfort for years to come. The tapped through design is ideal for quick and easy fixation and comes in a wide variety of thread sizes. Please see component diagram below.
| JBF National Part Number | A | B | C | D | d2 | t |
|---|---|---|---|---|---|---|
| 1PLK-1419 | 1 | 0.63 | 0.51 | 0.35 | 0.37 | 8-32 |
| 1PLK-1420 | 1 | 0.63 | 0.51 | 0.35 | 0.37 | 10-32 |
| 1PLK-1421 | 1 | 0.63 | 0.51 | 0.35 | 0.37 | 1/4-20 |
| 2PLK-1422 | 1.25 | 0.79 | 0.67 | 0.47 | 0.37 | 10-32 |
| 2PLK-1423 | 1.25 | 0.79 | 0.67 | 0.47 | 0.37 | 1/4-20 |
| 3PLK-1424 | 1.5 | 1.02 | 0.83 | 0.59 | 0.37 | 1/4-20 |
| 3PLK-1425 | 1.5 | 1.02 | 0.83 | 0.59 | 0.5 | 5/16-18 |
| 3PLK-1426 | 1.5 | 1.02 | 0.83 | 0.59 | 0.5 | 3/8-16 |
| 4PLK-1427 | 2 | 1.26 | 1.02 | 0.75 | 0.37 | 1/4-20 |
| 4PLK-1428 | 2 | 1.26 | 1.02 | 0.75 | 0.5 | 5/16-18 |
| 4PLK-1429 | 2 | 1.26 | 1.02 | 0.75 | 0.5 | 3/8-24 |
| 4PLK-1430 | 2 | 1.26 | 1.02 | 0.75 | 0.5 | 3/8-16 |
| 4PLK-1431 | 2 | 1.26 | 1.02 | 0.75 | 0.75 | 1/2-20 |
| 4PLK-1432 | 2 | 1.26 | 1.02 | 0.75 | 0.75 | 1/2-13 |