Screw Terminal Blocks | McMaster-Carr

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584 Products

Terminal Blocks

Dividers separate live wires and keep your setup tidy

222 products

Space-Saving Circuit Board Terminal Blocks

Handle as much voltage as other circuit board blocks while taking up half the space

6 products

Modular DIN-Rail Mount Terminal Blocks

Mix and match blocks to get the exact number of circuits you need

90 products

Touch-Safe Terminal Blocks

Recessed terminals protect you from shocks and prevent short circuits

45 products

Enclosure-Mounted Terminal Blocks

Ready to install without mounting the terminal block first

32 products

Plug-and-Socket Circuit Board Terminal Blocks

Cut power and swap out components on your circuit board without removing any wire

5 products

Terminal Blocks for Thermocouples

Connect thermocouple wire without distorting or destroying the signal

15 products

Space-Saving Terminal Blocks

Connect the same number of circuits as standard terminal blocks in a narrower footprint

12 products

High-Temperature Terminal Blocks

The ceramic body handles temperatures up to 1,200° F

13 products

Through-Panel Terminal Blocks

Mount in a panel cutout to connect components on opposite sides

6 products

Clear-View Enclosure-Mounted Terminal Blocks

Check circuits through the clear cover while blocking out dirt and liquids

11 products

Touch-Safe Plug-and-Socket Terminal Blocks

Cut power with the pull of a plug while preventing shocks and short circuits

12 products

Terminal Blocks for Motors

Rotate jumpers to match wye, delta, and other wiring layouts on motors

3 products

Space-Saving Modular DIN-Rail Mount Terminal Blocks

Snap onto low-profile DIN 2 rail to save space in compact enclosures

33 products

Circuit Board Terminal Blocks

Pins on the bottom align with circuit board layouts

6 products

Terminal Blocks for RTD and Thermocouple Connection Heads

Connect thermocouple and RTD probes to wire and instrumentation

8 products

Other Products

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

39 products

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

27 products

Distribution Posts

Send power from one source to several devices in a circuit in less space than a distribution block

4 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products