Aluminum Hand Knob - Studded 4 Lobe
This 4 lobbed studded aluminum hand knob from JBF National is manufactured from the highest quality aluminum, and is designed to meet the requirements of even the most demanding industrial applications. The 4 lobe design of this hand knob (also known as a clamping knob) ensures positive palm and finger grip, each and every time. Inch and metric versions available. Please see component diagram below.
| JBF National Part Number / Inch | Thread Size | Knob Dia (A) | Total Length (B) | Hub Dia C | Hub Length (D) | Stud Length (E) | Ship Wt (lbs) |
|---|---|---|---|---|---|---|---|
| 1HKA-1000 | 1/4-20 | 1 1/2 | 2 5/8 | 5/8 | 3/8 | 1 3/4 | .06 |
| 1HKA-1001 | 1/4-20 | 1 1/2 | 3 7/8 | 5/8 | 3/8 | 3 | .08 |
| 2HKA-1002 | 5/16-18 | 2 | 2 3/4 | 13/16 | 1/2 | 1 3/4 | .12 |
| 2HKA-1003 | 5/16-18 | 2 | 4 | 13/16 | 1/2 | 3 | .14 |
| 3HKA-1004 | 3/8-16 | 2 1/2 | 2 7/8 | 1 | 9/16 | 1 3/4 | .18 |
| 3HKA-1005 | 3/8-16 | 2 1/2 | 4 1/8 | 1 | 9/16 | 3 | .20 |
| 3HKA-1006 | 1/2-13 | 2 1/2 | 2 7/8 | 1 | 9/16 | 1 3/4 | .22 |
| 3HKA-1007 | 1/2-13 | 2 1/2 | 4 1/8 | 1 | 9/16 | 3 | .28 |
| 4HKA-1008 | 5/8-11 | 3 | 3 | 1 1/4 | 5/8 | 1 3/4 | .39 |
| 4HKA-1009 | 5/8-11 | 3 | 4 1/4 | 1 1/4 | 5/8 | 3 | .44 |
| JBF National Part Number / Metric | Thread Size | Knob Dia (A) | Total Length (B) | Hub Dia C | Hub Length (D) | Stud Length (E) | Ship Wt (lbs) |
|---|---|---|---|---|---|---|---|
| 1HKA-1030 | M6 | 38 | 67 | 16 | 10 | 45 | 0.06 |
| 1HKA-1031 | M6 | 38 | 98 | 16 | 10 | 76 | 0.08 |
| 2HKA-1032 | M8 | 51 | 70 | 21 | 13 | 45 | 0.12 |
| 2HKA-1033 | M8 | 51 | 102 | 21 | 13 | 76 | 0.14 |
| 3HKA-1034 | M10 | 64 | 73 | 25 | 14 | 45 | 0.18 |
| 3HKA-1035 | M10 | 64 | 105 | 25 | 14 | 76 | 0.2 |
| 3HKA-1036 | M12 | 64 | 73 | 25 | 14 | 45 | 0.22 |
| 3HKA-1037 | M12 | 64 | 105 | 25 | 14 | 76 | 0.28 |
| 4HKA-1038 | M16 | 76 | 76 | 32 | 16 | 45 | 0.39 |
| 4HKA-1039 | M16 | 76 | 108 | 32 | 16 | 76 | 0.44 |