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3M™ Disc Pad Hub And Retainer Nut

Part Number 284163M ID 60440237216UPC 00051141284163
  • M14-2 interior threaded metal insert fits grinders with M14-2 threaded spindle, typically sold in Europe and Latin America
  • 63.5 mm hub (2-1/2") supports fiber disc face plates with diameters of 101mm (4"), 115mm (4-1/2"), 127mm (5"), 178mm (7"), and 229mm (9")
  • Metal retainer nut securely fastens a fiber disc with a 22mm (7/8") center hole to a grinder/sander spindle
  • Retainer nut is compatible with 32mm (1-1/4") spanner wrench with 6.5mm (1/4" pins)
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Specifications
Attribute Name
Value
Application
Deburring, Finishing, Polishing, Surface Preparation
Brand
3M™
Color
Black, Black
Equipment - Machines
Disc Sanders, Right Angle Grinders
Form Type
Right Angle
Industries
Metalworking
Overall Diameter (Imperial)
2.5 in
Overall Diameter (Metric)
63.5 mm, 63.5 mm
Product Type
Back-up Pad
Sub Industries
Builders Hardware, Medical Instruments, Sub Applications, Metal Implants, Plating & Polishing, Plumbing Fixtures, Turbine Engines
Thread Size
M14-2.0 INT
Type
Retainer Nut
Product Details
  • M14-2 interior threaded metal insert fits grinders with M14-2 threaded spindle, typically sold in Europe and Latin America
  • 63.5 mm hub (2-1/2") supports fiber disc face plates with diameters of 101mm (4"), 115mm (4-1/2"), 127mm (5"), 178mm (7"), and 229mm (9")
  • Metal retainer nut securely fastens a fiber disc with a 22mm (7/8") center hole to a grinder/sander spindle
  • Retainer nut is compatible with 32mm (1-1/4") spanner wrench with 6.5mm (1/4" pins)
  • Face plates are sold separately

3M™ Disc Pad Hub and Retainer Nut attach fiber discs to tools with M14-2 threaded spindles found on sanders and grinders typically sold in Europe. The disc pad hub has an M14-2 internal threaded metal insert that fits an M14-2 threaded spindle (where the spindle is 14 millimeters in diameter with 2 millimeter pitch).

3M™ Disc Pad Hub And Retainer Nut
3M™ Disc Pad Hub And Retainer Nut used for grinders
The Flexibility to Choose: Face Plate Attachments
Our 3M™ Disc Pad Hub enables operators to select face plates with four different levels of flexibility (soft, medium, hard and extra-hard). The disc pad hub holds a face plate firmly in position, and a center hole fiber disc is secured to the tool spindle with the retainer nut.

Disc pad hub and retainer nut has a M14-2 INT thread for use on grinders with M14-2 threaded spindle and can be used on all 3M Fiber Disc face plates. Use with 4-1/2 inch through 9 inch Fiber Discs with 7/8"/22mm center hole.

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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.


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