JM31226HTHS

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High Torque© High Strength (HTHS) retention knob, CAT 40, 5/8"-11; 45°, Coolant through, Made from 9310H steel, 40% stronger

Retention Knob Information and Installation (PDF)

Retention Knob Installation Video

Category: Retention Knobs
Thread Size: .625-11
Angle: 45
Knob Diameter: 0.740
L1 Length: 0.4400
L2 Length: 0.640
Flange Thickness: 0.120
Hole Diameter: 0.218
Neck Diameter: 0.490
Pilot Diameter: 0.641
Shoulder Diameter: 0.862
Wrench Flat Diameter: 0.765
Socket Part #: RKW40
Number: JM31226HTHS
Solid Version: JM31226-HHT, JM31226-HHTHS, JM11123HS, JM11123HTHS
Alternate Part: JM31226HT, JM31226HTHS, JM11122HT (3), JM11122HTHS (3) - (3) Note difference in hole size
Country of Origin: USA

This knob is a replacement for the following parts:

ManufacturerPart Number
For Machines (see disclaimer)*: Mazak

* 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 sales@jmperformanceproducts.com 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 www.P65Warnings.ca.gov.