5/16"-18 Couplings | McMaster-Carr

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System of Measurement

Thread Size

Material

Stainless Steel

Length

Gender

Hex Length

Nut Type

With Sight Hole

Thread Length

Hex Size

Width

Finish

Zinc Flake Coated

Threading

Partially Threaded

Threaded on Both Ends

For Adapting

Thread Direction

Shape

OD

Shaft Diameter

7/16" to 1 1/8"

7/16" to 1 3/16"

7/16" to 1 3/8"

RoHS

Compliant with Exemptions

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

Drive Style

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Tensile Strength

40,000 psi to 99,999 psi

100,000 psi or greater

Thread Type

UN/UNF (SAE Straight)

ID

Specifications Met

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546 Products

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Coupling Nuts

Connect and extend threaded rods

Standoffs

Separate, position, or connect components in assemblies

Threaded Rod Collars

Threaded Rod Collars

Hold and position parts on a threaded rod

Power Transmission

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

U-Joints

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

Rod Ends

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

Connecting Rods

Connecting Rods

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

Rod Alignment Couplers

Rod Alignment Couplers

Reduce wear on bearings and seals by flexing when the cylinder and load aren't precisely even

Shaft Collars

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

Building and Machinery Hardware

T-Slotted Framing Fasteners

T-Slotted Framing Fasteners

Secure brackets and other accessories to T-slotted rails

Fluid Handling

Float Valve Bodies

Float Valve Bodies

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

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Electrical

Power Receptacles

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

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