Set Screw Connectors | McMaster-Carr

	Conduit Trade Size Conduit Trade Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4

	Type Type


Adapter	Connector

Splice	Terminal

Reducer

	For Wire Gauge For Wire Gauge

26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1/0
2/0
3/0
4/0
250 MCM
300 MCM
350 MCM
400 MCM
450 MCM
500 MCM
600 MCM
700 MCM
750 MCM
800 MCM
900 MCM
1000 MCM

	Conduit Type Conduit Type

EMT

IMC

RMC

	Shape Shape

	Conduit Connection Type Conduit Connection Type


Screw Clamp	Threaded

	Material Material

	For Number of Wires For Number of Wires

	Wire Connection Type Wire Connection Type


Screw-Clamp Terminals	Twist On

	For Wire Material For Wire Material

Copper

Aluminum

	Connection Type Connection Type


Conduit	Electrical Box

	Thread Size Thread Size

	Specifications Met Specifications Met

CSA

	Terminal Material Terminal Material

Aluminum

Copper

Brass

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Splice Type Splice Type

	Multi-Way
	Butt
	Wire Connector

	Gender Gender

Female

Male

	Width Width

	Length Length

	For Screw Size For Screw Size

	Number of Holes Number of Holes

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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243 Products

Conduit and Fittings

Adapters for Thin-Wall (EMT) Steel Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Connectors for Thin-Wall (EMT) Steel Conduit

Join pieces of conduit.

Reducers for Thin-Wall (EMT) Steel Conduit

Connect different sizes of conduit.

Adapters for Thin-Wall (EMT) Stainless Steel Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Connectors for Thin-Wall (EMT) Stainless Steel Conduit

Join pieces of conduit.

Access Ports for Metal Conduit

Also known as conduit bodies, these ports provide access to wire and cable inside metal conduit for pulling, splicing, and maintenance. They are also used to change the direction of a run.

Service Entrance Weatherheads

Create a connection point to route overhead service wire and cable from utility poles to electrical meters, bringing power to buildings.

Wire Terminals and Terminal Blocks

Noninsulated Screw-Down Butt Splices

Tighten the screws to connect wires.

Insulated Screw-Down Butt Splices

A plastic cover fully insulates these splices and it's clear so you can visually confirm the connection.

Underground Heat-Shrink Screw-Down Butt Splices

Make watertight connections for underground applications.

Harsh-Environment Screw-Down Butt Splices

Join wires and cables in some of the dirtiest and wettest locations—from paper mills to marine environments—without special tools.

Multi-Way Taps/Splices

Tap and splice multiple wires together at the same time.

Sealed Multi-Way Taps/Splices

Tap and splice multiple wires in temporarily wet environments and up to six feet underground.

High Temperature Twist-On Wire Splicing Connectors

Rated to 300° F, these connectors are an excellent choice for use in high-temperature applications such as HID lighting and electric heat.

Set Screw Lugs

The straight tongue improves conductivity by increasing the surface contact between the lug and your equipment.

Set Screw Lugs with Offset

An offset tongue gives you extra space to insert wire.