Ball Connectors | McMaster-Carr

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For Maximum Trailer Weight

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151 Products

Positioning Arms

Ball-Grip Positioning Arms

Ball-and-socket connections allow 360° positioning.

Heavy Duty Ball-Grip Positioning Arms

With strength for higher load capacities than other ball-grip positioning arms, these arms have a heavy duty construction.

Bend-and-Stay Positioning Arms

Stronger and with greater load capacities than gooseneck-style positioning arms, these arms keep their shape even when moving or when exposed to vibration. They’re often used in robotics and conveyor applications when frequent repositioning isn’t required.

Material Handling

Hitch Balls

Mount these onto a hitch insert, and connect them to a trailer with a hitch-ball coupler.

Hitch Inserts

Use these inserts in hitch-ball connections.

Bead Chain Screw-Mount Links

These links allow you to mount chain with a screw, bolt, or rivet.

Bead Chain Push-Mount Links

Mount these links in a drilled hole to secure small items such as pens. Links can also be attached as the end of a pull chain.

Bead Chain Splicing Links

Thread chain through the hole of these links to form an adjustable loop or connect chain ends to form a longer chain.

Bead Chain Loop Links

Use these links to connect the ends of chain to form a longer chain or create a loop for key chains and ID tags.

Round Duct and Fittings

Quick-Disconnect Duct and Fittings

Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.

Standard Duct and Fittings

No need for clamps or connectors—duct and fittings have a male end that is slightly smaller than its female end for simple assembly.

Suspension Arms for Enclosures

Hang your human-machine interface and swivel it around to save floor space and comfortably access touch screens, buttons, and other operating equipment.