3/8"-24 Adapters | McMaster-Carr

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For Use With

Electrical Discharge Machines

Fuel Gases

Grinders for Wheels and Cones

Hammer Drills

Handheld Power Drills

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Connects To

Flare Style

Tube Material

Drive Style

620 Products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

193 products

Threaded Inserts

Create new threads or repair stripped threads

57 products

Weld Nuts

Weld to metal surfaces to add permanent threads

29 products

Fluid Handling

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

41 products

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

9 products

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

3 products

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

2 products

Hose Crimpers

Crimp ferrules onto hose to secure fittings

1 product

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

4 products

Pressure Test Plugs

Tighten onto equipment to check pressure without permanently installing a gauge

4 products

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

5 products

Fabricating and Machining

Grinder Spindle Adapters

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

1 product

Flap Wheel Adapters

Adapt flap wheels with a threaded stud to tools that have a threaded spindle

1 product

Drill Chuck Arbors

Attach drill chucks to machine spindles

2 products

Drill Chucks

Connect drill bits to hand-held drills, drill presses, and milling machines

26 products

Pipe Threader Dies

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

1 product

Gear and Bearing Puller Forcing Screws

Replace forcing screws on gear and bearing pullers

1 product

Building and Machinery Hardware

Positioning Arms

Mount and position tools and other small equipment

22 products

Mechanical Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

6 products

Power Transmission

Rod Ends

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

86 products

Air Cylinder Mounts

Secure air cylinders to surfaces with brackets, rod clevises, and flanges

7 products

Air Cylinders

Push and pull loads to do everything from stamping materials to sorting parts on conveyors

86 products