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3M™ Sanding Disc Retainer Nuts

3M Internal Disc Retainer Nuts | Blackburn Marine
MMM 5621 5/8 - 11 X 1/2" Nut
MMM 5620 5/8 - 11 X 5/8" Nut


Internal. Securely fastens a fiber disc to a disc pad hub or face plate when using a rotary power tool. Manufactured by 3M.

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