For over 50 years, T.J. Davies Company, Inc. has earned and retained the trust of our customers. Our retention knobs and retention knob sockets exceed industry standards. Please see specs on this part number below.

Category BT 40
Part Number(s) PSC-444X15
Overall Length 2.125
Thread Size M16-2
Taper BT 40
Knob Angle 15 Degree
Knob Diameter 0.746
Flange to end of Knob 1.141
Flange to Beginning of Tap 0.905
Neck Diameter 0.549
Socket Size RKS-BTCAT40
Solid PS-444X15
Through Coolant PSC-444X15
O-Ring No
Spec Sheet (PDF format) Full Scale

If imperial threads are required, the part number is PSCI-444X15.

If an O ring is required, the part number is PSCO-444X15.