Square Fittings | McMaster-Carr

Filter by

System of Measurement

Rail Height

Material

Stainless Steel

T-Slotted Framing Rail Profile

Attribute

Length

Color

Bracket Type

Adjustable Angle

Shape

Pipe Size

Thread Size

Finish

Aluminum Coated

Black Zinc Plated

Strut Channel Type

Extra-Low Profile

RoHS

Compliant with Exemptions

REACH

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

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Rail Width

Single Rail Profile Style

Angled One Slot

Angled Two Slot

Corner Two Slot

Half Round One Slot

Inline Two Slot

Low Profile One Slot

Radius Two Slot

Framing Type

Locking Slotted

Mount Type

T-Slotted Framing Nut Type

Easy-Slide Spring Tab

Hammer with Stud

Self-Aligning Spring Tab

Self-Aligning Spring-Loaded Ball

Self-Aligning with Handle

Set Screw and Spring-Loaded Ball

Single with Threadlocker

Spring-Loaded Ball

Channel Height

13/16" to 1 5/8"

13/16" to 3 1/4"

1 5/8" to 3 1/4"

2 7/16" to 3 1/4"

Mounting Fastener Thread Size

How can we improve?

5,572 Products

Building and Machinery Hardware

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

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

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

Permanently join rails and fittings to assemble heavy duty racks, shelving, and work tables

Clamp-On Framing Rail Mounts

Clamp-On Framing Rail Mounts

Connect to clamp-on framing rails to mount your structure to floors, walls, and ceilings

Locking-Slotted Framing and Fittings

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Brackets

Connect surfaces in an assembly

Push-to-Close Latches

Push-to-Close Latches

Automatically hold doors shut when you push them closed

Leveling Mounts

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

Leveling Mount Inserts

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

Panel Hanging Brackets

Panel Hanging Brackets

Mount and remove panels

Fluid Handling

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Spray Nozzles

Clean, rinse, and apply coatings with pressurized liquid

Measuring and Inspecting

Square Holding Clamps

Square Holding Clamps

Position squares for repeat checking and marking

Stroboscopes

Shine a bright flashing light at moving belts and pulleys to measure speed and detect wear

Lubricating

Grease Fittings

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

Power Transmission

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Rigid Shaft Couplings

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

Shaft Collars

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

Material Handling

Bungee Cord Locks

Bungee Cord Locks

Position on bungee cords to create stops and keep the cords from rubbing against surfaces

Pipe Hangers

Suspend pipe, conduit, and tube from rods, hooks, and straps

Seismic Bracing Mounts

Seismic Bracing Mounts

Bolster threaded-rod hangers and allow pipe systems to sway during earthquakes

Quick Links

Join rope, cable, and chain to secure loads

Caster Sockets

Mount on the inside corners of channel and other framing to attach stem casters

Trolleys

Transport hook-mount hoists along a beam for lifting and moving loads

Mounts for Vacuum Cups and Lifters

Mounts for Vacuum Cups and Lifters

Mount vacuum cups or vacuum lifters to surfaces

Conveyor T-Slot Bolts

Conveyor T-Slot Bolts

Drop into the T-slot to mount components

Robot Pedestal Adapter Kits

Robot Pedestal Adapter Kits

Attach to square pedestals to support accessories or build a custom cable management system

Containers, Storage, and Furniture

Stacking Caps and Targets

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

Heating, Ventilation, and Air Conditioning

Duct and Fittings

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

Duct Airflow Dampers

Duct Airflow Dampers

Regulate airflow to sections of duct

Duct Fire Dampers

Duct Fire Dampers

Automatically close at high temperatures to help prevent the spread of fire through duct

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