1/4"-20 Couplings | McMaster-Carr

Filter by

System of Measurement

Thread Size

Material

Grade L5 Ceramic

Stainless Steel

Length

Gender

Nut Type

Externally Threaded

With Sight Hole

Threading

Partially Threaded

Threaded on Both Ends

Hex Length

Thread Length

Width

Shape

Hex Size

OD

Finish

Nickel Chrome Plated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Pipe Size

Shaft Diameter

Thread Type

For Adapting

Thread Direction

Performance

Chemical Resistant

Corrosion Resistant

Electrically Insulating

Flame Retardant

High Temperature

Static Dissipative

Vibration Resistant

Thread Direction

Height

DFARS Specialty Metals

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Export Control Classification Number (ECCN)

How can we improve?

1,128 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Standoffs

Separate, position, or connect components in assemblies

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Threaded Rod Collars

Threaded Rod Collars

Hold and position parts on a threaded rod

Power Transmission

Flexible Shaft Coupling Hubs

Flexible Shaft Coupling Hubs

Pair with spiders, discs, or grids for a complete flexible shaft coupling

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

Connecting Rods

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

Rod Ends

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

Linear Drive Nuts

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

Precision Lead Screw Nuts

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

Torque Limiters

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

Building and Machinery Hardware

Hinges

Mount to doors and panels so they can swing open and closed

T-Slotted Framing Fasteners

T-Slotted Framing Fasteners

Secure brackets and other accessories to T-slotted rails

Press-Fit Framing Handles

Press-Fit Framing Handles

Lift and carry structures by adding a grip to press-fit framing

Fluid Handling

Float Valve Bodies

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

Air-Actuated On-Off Valves

Air-Actuated On-Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)