5/16"-18 Shafts | McMaster-Carr

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System of Measurement

Diameter

Length

Thread Size

End Type

Retaining Ring Groove

Material

Shaft Diameter

Thread Length

Mechanical Finish

Shaft Type

Round with Support Rail

Edge Type

For Motion

Shape

Threading

Threaded on Both Ends

Performance

Highly Wear Resistant

Heat Treatment

Hardness Rating

Finish

Zinc Yellow-Chromate Plated

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

Yes

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Overall Length

500 Products

Power Transmission

Linear Shafts

Pair with linear bearings and shaft supports to create smooth, precise motion

47 products

Idler Shafts

Support idler sprockets and pulleys in tensioning applications

3 products

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion

5 products

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

14 products

Connecting Rods

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

18 products

Shaft Collars

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

21 products

Flexible Shaft Coupling Hubs

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

21 products

Fastening and Joining

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

39 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

11 products

Thread Adapters

Join threads of a different type, size, and gender

8 products

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

267 products

Threaded Rod Collars

Hold and position parts on a threaded rod

2 products

Building and Machinery Hardware

Lever Handles

Replace gear levers or attach to cranks and hand wheels to make them easier to turn

4 products

Ball-Lever Shafts

Attach a ball knob to create a custom handle for operating machinery

4 products

Fluid Handling

Float Rods

Connect valve bodies and floats to build or repair a float valve

4 products

Fabricating and Machining

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

36 products