5/8"-11 Adapters | McMaster-Carr

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Grinders for Bits and Burs

Handheld Buffers and Polishers

Handheld Power Drills

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40,000 psi to 49,999 psi

50,000 psi to 59,999 psi

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DFARS Specialty Metals

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Thread Type

Nut Type

297 Products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

64 products

Threaded Inserts

Create new threads or repair stripped threads

81 products

Weld Nuts

Weld to metal surfaces to add permanent threads

8 products

Fabricating and Machining

Drill Rig Thread Adapters

Change thread sizes on bits to use them in drill rigs

1 product

Grinding Cone Arbors

Connect grinding cones to hand-held drills and die grinders; also known as mandrels

1 product

Motor Shaft Arbors

Mount abrasive discs to the shafts of bench-top motors, grinders, and buffers

1 product

Polisher Arbor Extensions

Lengthen your polisher's reach to access deep grooves and tight spots

1 product

End Mill Holders

Secure end mills, drills, or reamers in milling machines

10 products

Grinder Spindle Adapters

Convert grinder spindles to thread sizes that work with grinding wheels and sanding discs

3 products

Backup Pads

Attach discs to power tools and reinforce the discs

36 products

Sanding Sleeve Drums

Convert grinders or hand-held power tools into sanding tools

1 product

Pipe Threader Dies

Install in the die head on your Ridgid pipe threader to cut external pipe and conduit threads

1 product

Power Transmission

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

2 products

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

42 products

Material Handling

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

3 products

Building and Machinery Hardware

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

18 products