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High Torque© High Strength (HTHS) retention knob; BT30, M12X1.75; 45°; Solid; Made from 9310H steel, 40% stronger; replaces JM11114

Retention Knob Information and Installation (PDF)

Retention Knob Installation Video

Category: Retention Knobs
Thread Size: M12X1.75
Angle: 45
Knob Diameter: 0.520
L1 Length: 0.3200
L2 Length: 0.460
Flange Thickness: 0.100
Hole Diameter: -
Neck Diameter: 0.385
Pilot Diameter: 0.492
Shoulder Diameter: 0.645
Wrench Flat Diameter: 0.525
Socket Part #: RKW30
Number: JM11114HTHS
Coolant Version: JM11111A
Country of Origin: USA

This knob is a replacement for the following parts:

ManufacturerPart Number

* Retention knobs are not interchangeable. Machines are only given as a reference, JMPP makes no guarantee this is the correct knob for your machine. Please call us at 1-800-322-7750 or email for knob identification help.

WARNING: The steel alloy used in this product contains chromium and nickel. This product can expose you to chemicals including chromium and nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to