Photo comingSpecifications below are JM Performance’s.


JM35053HTHS
BT50 High Torque retention knob, 45°, M24, coolant-through, 9310H, O-ringsBT5045°M24Coolant-through
SpecificationsFrom JM Performance's product pages
- Taper
- BT50
- Style
- —
- Angle
- 45°
- Thread
- M24
- Flange to end of knob
- 1.778"
- Knob Ø
- .903"
- Neck Ø
- .668"
- Coolant
- Coolant-through
- with O-ring
- Socket
- RKW50
Machines
Machines this knob is listed for
BT50, 45°.Verify firstListed as a guide only. Builders change knob specs between models, years and coolant options, so check your machine’s manual, or send us the make, model and serial number and we’ll confirm before you order. The wrong retention knob can let a holder pull out of the spindle.
| Builder | Machines | Taper |
|---|---|---|
| Haas | BT50 machines (BT option on 50-taper VF/EC/VS/HS)Builder p/n 04-1147 (solid) | BT50 |
| Toyoda / JTEKT | 50-taper FV, FVN, FHN, FXN, PV, BN, FH, FA, RB, SB, SV-65, e500H5; DN-1V/2V/1H | BT50 / CAT50 |
Don’t see your machine? Call the counter at 408-834-8656 with the make, model and serial number and we’ll find the right knob.
JM Performance’s dimensions
- Knob Ø
- .903"
- Neck Ø
- .668"
- Flange to start of angle (L1)
- 1.384"
- Flange to end of knob (L2)
- 1.778"
- Flange thickness
- .392"
- Flange (shoulder) Ø
- 1.440"
- Pilot Ø
- .983"
- Wrench flats
- 1.245"
- Coolant hole Ø
- .236"
- Thread Side O-ring
- P21
- Thread
- M24
- Tightening socket
- RKW50