Twist Lock Fittings | McMaster-Carr

	Pipe Size Pipe Size

	Thread Type Thread Type

	Connection Style Connection Style

	Gender Gender


Male	Female

	Material Material

	Finish Finish

Zinc Plated

Painted

	For Use With For Use With

Air

Water

Abrasive Materials

	Connection Type Connection Type


Hose	Pipe

	Claw Connection Type Claw Connection Type

	Length Length

	Maximum Pressure Maximum Pressure

	Gasket Material Gasket Material

SBR Rubber

Buna-N Rubber

Natural Rubber

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

-60° F

-40° F

-20° F

	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

	Maximum Vacuum Maximum Vacuum

22 in. of Hg @ 72° F

29 in. of Hg @ 72° F

Not Rated

	Compatible With Compatible With

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

REACH Compliant

	Grip-Lock Component Grip-Lock Component


Socket	Plug

	For Hose ID For Hose ID

	Specifications Met Specifications Met

MIL-A-A-50431

MIL-C-3486

	For Hose Material For Hose Material

124 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Twist-Claw Hose Couplings for Air and Water

Couplings have an identical claw-style head that connects to another twist-claw hose coupling with a quarter twist.

Spring-Lock Twist-Claw Hose
Couplings for Air and Water

Couplings have a spring-loaded locking sleeve that automatically locks into place to prevent accidental disconnection. The identical claw-style head connects to another spring-lock twist-claw hose coupling with a quarter twist.

Large Twist-Claw Hose Couplings for Air and Water

Also known as universal couplings, these have identical claw-style heads and connect by being pushed together with a quarter twist.

Extra-Large Twist-Claw Hose
Couplings for Air and Water

Couplings are only compatible with other extra-large twist-claw hose couplings. Use with tools and equipment up to 2 pipe size.

Grip-Lock Hose Couplings for Air

These couplings have a lower profile than other claw-style couplings to fit in cramped spaces. They consist of a plug and a socket that connect with a quarter twist. Also known as Bowes couplings.

Double Grip-Lock Hose Couplings for Air and Water

Also known as Thor couplings, these have two locking points to give you twice the gripping power of standard grip-lock couplings. They consist of a plug and a socket that connect with a quarter twist.

Abrasive-Material Hose Fittings

Use these fittings with sand, steel shot, and other abrasive material. They have a unique claw-style head that connects to other abrasive-material hose fittings with a quarter twist.