Ring Connectors | McMaster-Carr

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685 Products

Ring Terminals

Insulated Ring Terminals

A plastic cover insulates the barrel to prevent short-circuiting with nearby wire.

Noninsulated Ring Terminals

Mount these terminals on a threaded screw or stud for a more secure connection than spade and hook terminals. They are noninsulated, so you can easily inspect the wire connection.

Noninsulated Elongated Ring Terminals

Mount these elongated ring terminals on a range of threaded screw and stud sizes—their connection is more secure than spade or hook terminals.

Noninsulated Open-Barrel Ring Terminals

For easy crimping, lay wire into the open barrel instead of threading it through a closed barrel.

Insulated Elongated Ring Terminals

A plastic cover on the barrel provides electrical insulation to prevent short-circuiting from nearby wire. These terminals have an elongated ring that can be mounted with a range of screw sizes.

Heat-Shrink Ring Terminals

When heat is applied, the insulation shrinks and creates a seal that keeps out water and contaminants. Mount these terminals on a threaded screw or stud for a more secure connection than spade or hook terminals.

Solder-Loaded Heat-Shrink Ring Terminals

When heat is applied, the enclosed solder melts, creating the most secure and electrically conductive connection we offer. The plastic insulation also shrinks when heated, forming a seal to keep out water and contaminants.

Elongated Heat-Shrink Ring Terminals

The elongated ring can be mounted with a range of screw sizes.

Noninsulated High-Temperature Ring Terminals

Made of heat-resistant materials, these terminals are designed for installation in high-temperature applications such as motors, ovens, and furnaces. They are noninsulated, so you can easily inspect the wire connection.

Insulated High-Temperature Ring Terminals

With a heat-resistant PVDF cover on the barrel, these terminals are best for high-temperature applications where you want to prevent short-circuiting with nearby wire.

Insulated Heavy Duty Ring Terminals

With a thicker ring and a plastic cover on the barrel, these terminals are more durable than standard ring terminals and insulated to prevent short circuiting with nearby wire.

Noninsulated Heavy Duty Ring Terminals

Thicker than standard ring terminals and noninsulated, these terminals are best when you need durability and to easily inspect the wire connection.

Insulated Extra-Grip Ring Terminals

A plastic cover on the barrel provides electrical insulation to prevent short-circuiting with nearby wire. These terminals have a serrated edge on the inside of the ring that grips the mounting screw for a secure hold.

Noninsulated Extra-Grip Ring Terminals

A serrated edge on the inside of the ring grips the mounting screw for a secure hold.

Ring Terminal Jumper Cords

Save preparation time—these cords are ready-to-use with ring terminals on each end of a single-conductor wire.

Spade Terminal Cords

Ready to install in panel boxes, switches, outlets, and other devices, these cords come with a spade terminal already attached to one end.

Compression Lugs

Use a compression tool to attach lugs to wire. Mount them to a screw.

Finish-Your-Own Double-Compression Lugs

Drill mounting holes on these lugs where you need them. With a long barrel, you can compress them twice for an extra-tight grip in high-vibration applications.

Double-Compression Lugs

The barrel is longer than other lugs, so you can compress it twice for an extra-tight grip in high-vibration applications.

Heavy Duty Double-Compression Lugs

With a thicker tab and OD, these lugs are more durable and dissipate more heat from high electrical loads than standard compression lugs. They have a long barrel, so you can compress them twice for an extra-tight grip in high-vibration applications.

Slotted Double-Compression Lugs

Accommodate differently spaced screws when connecting to equipment rails or bus bars with the slotted mounting hole on these lugs. With a long barrel, you can compress them twice for an extra-tight grip in high-vibration applications.

Insulated Compression Pin Lugs

Solid pins make it easy to insert stranded wire into screw-clamp connections. The plastic cover on the barrel of these lugs provides electrical insulation to prevent short-circuiting with nearby wire.

Solder and Crimp-On Lugs

Solder these lugs in place, or use a crimping tool for a secure connection.

Set Screw Lugs

Tighten the set screw for a secure connection without crimping. Mount lugs to a screw.

Insulated Set Screw Lugs

To prevent short-circuiting with nearby wire, a plastic cover insulates the barrel on these lugs. Tighten the set screw for a secure connection without crimping.

Lay-In Set Screw Lugs

Mount these lugs to a surface to create electrical connections without needing to cut or splice the conductor wire. For a secure connection without crimping, tighten the set screw onto the wire.

Box Set Screw Lugs

Thread these lugs onto grounding or neutral bars commonly found in panelboards. For a secure connection without crimping, tighten the set screw.

Stacked Set Screw Lugs

Save space on your mounting surface by installing wire vertically.

Multi-Angle Set Screw Lugs

Often used in tight spaces, these lugs allow wire to enter at several angles.

Tamper-Resistant Set Screw Lugs

With screw heads that shear off when the appropriate torque is applied, these lugs create a secure and tamper-resistant connection without crimping.

Hammer-On Lugs

Slide these lugs onto cable and strike them with your hammer to create a durable connection.

Terminal and Splice Assortments

High-Temperature Terminal and Splice Assortments

Designed for use in high-temperature applications such as motors, ovens, and furnaces, these assortments include a variety of terminals and splices made of heat-resistant materials.

Terminal and Splice Assortments

Maintain a supply of extra terminals and splices in various sizes.

Solder-Loaded Heat-Shrink
Terminal and Splice Assortments

Keep on hand a variety of different sized terminals and splices with the most secure, sealed connection we offer.

Heat-Shrink Terminal and Splice Assortments

For use where water and contaminants are a concern, the terminals and splices in these assortments have insulation that shrinks and creates a tight seal when heated.

Ring Terminal Assortments

Keep a variety of ring terminal sizes on hand.

Solder and Crimp-On Lug Assortments

Keep a variety of lug sizes on hand.

Set Screw Lug Assortments

Keep on hand the set screw lugs, nuts, and bolts needed to install single- or three-phase dry-type transformers.