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OBSOLETE-Standard retention knob, CAT 50, 1"-8, 15°, Solid

Category: Retention Knobs
Thread Size: 1.00-8
Angle: 15
Knob Diameter: 1.101
L1 Length: 0.9901
L2 Length: 1.344
Flange Thickness: 0.273
Hole Diameter: -
Neck Diameter: 0.825
Pilot Diameter: 1.031
Shoulder Diameter: 1.438
Wrench Flat Diameter: 1.245
Socket Part #: RKW50
Number: JM51041(86)
Coolant Version: JM31558, JM31558HT, JM31558HTHS
Country of Origin: USA

This knob is a replacement for the following parts:

ManufacturerPart Number
Retention Knob Supply: RK510-41
Seco: 1695
Davies: PSC-271-15
Lyndex: C50-1500*
For Machines (see disclaimer)*: Matsuura

* 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