Aluminum Posts | McMaster-Carr

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System of Measurement

Thread Size

Length

Hex Size

Gender

Shape

Thread Length

Slip-On Framing Component

Add-On Through-Hole Connector

Through-Hole Connector

Through-Hole Rail Support

Through-Hole Reducer

Screw Size

5/16"

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

1C999

EAR99

DFARS Specialty Metals

Rail Type

Color

Threading

Threaded on Both Ends

Pipe Size

Finish

Zinc Yellow-Chromate Plated

Hex Length

Bolt-Together Framing Component

Mount Type

Rail OD

Hardness

2,565 Products

Fastening and Joining

Standoffs

Separate, position, or connect components in assemblies

1,131 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

1 product

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

156 products

Thread Adapters

Join threads of a different type, size, and gender

699 products

Dowel Pins

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

26 products

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

19 products

Building and Machinery Hardware

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

34 products

Weld-Together Framing Rails

Permanently join with connectors to assemble heavy duty racks, shelving, and work tables

16 products

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

242 products

Safety Equipment

Safety Railing Connectors

Build custom safety rail structures with tees, elbows, crosses, and more

10 products

Safety Rails

Protect people on platforms, loading docks, and elevated walkways

52 products

Retractable Belt Barriers

Stretch belts between walls, racks, posts, and cones to restrict access to areas

2 products

Facility and Grounds Maintenance

Mailbox Posts

Mount mailboxes and anchor them in the ground or concrete

10 products

Chain Link Fencing

Everything you need to build or repair a chain link fence, from posts to gates

9 products

Communication

Sign Post Bases

Mount sign posts to the ground to display signs

1 product

Sign Holders

Display signs on walls, floors, tables, and other surfaces

9 products

Lighting

Landscape Lights

A directed beam of light illuminates paths, signs, flags, and landscape elements

4 products

Light Poles

Bring light to your parking lot or walkway in minutes

4 products

Raw Materials

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

8 products

Power Transmission

Linear Shafts

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

123 products

Rotary Shafts

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

18 products

Material Handling

Ladder Support Posts

Extend a hand-hold from the top of ladders used for tanks and roof access

1 product