Universals, Double Locks, Twist Lock, Boss & Mining

This section contains some popular items for plants, mills, and construction sites - however it includes a range of items which can end up in mis-applications and result in a hazardous or serious safety risk. Careful consideration and end user awareness must be present when selecting couplings in this section and understanding their limitations. Use safety restraints and check couplings before each use.

Ground joint fittings are designed for high pressure air or water (ie. up to 500 psi) as well as steam (steam maximum 250 psi @ 232°C (450°F) max) in plants, refineries, construction sites, or drilli...

Dixon Boss Ground Joints (Interlocking Couplings) - 236

26 Products

In addition to our higher end, higher quality Dixon Boss or Campbell Interlocking Ground joint fittings, we also offer a generic, lower end option at a lower price point for users who prefer this opt...

New-Line Ground Joints (Interlocking Couplings) - 235

10 Products

Some users prefer this brand of ground joints as the unique Viton O-ring seal eliminates air or steam leaks when hand tightened (the stems are interchangeable with traditional Ground Joint Couplings,...

Campbell/Aeroquip Ground Joints (Interlocking Couplings) - 236C

20 Products

Double lock couplings, commonly known as Thors or Nationals, are used primarily on air or water hose where "traditional" Quick Connects or Universals are not suitable, and a heavier duty, safer, more...

National A Hose Ends (Thor / Double Lock Couplings) - 381

16 Products

Series B Twist-Lock Couplings, also known as Bowes Interchange or Dix-Lock QM Style Interchange, are used primarily on air or water hose up to 300psi (do not disconnect while under pressure). They ar...

National B Hose Ends (Twist Lock / Dix-Lock Quick Acting) - 381B

19 Products

Universal Fittings (also known as CP, Claw or Crowfoot couplings) are quick acting couplings that are used for low-pressure air or water applications up to 110 psi, such as on hoses leading to jackha...

Universal Hose Ends - New-Line Brand, Compressor Ys - 255

22 Products

This line of universal fittings are manufactured to stricter tolerances than the N30 series imported universal ends. The N32D "machined" barbed hose end offers superior retention against coupling bl...

Universal Hose Ends - Domestic Brand, Machined Barbs - 254

13 Products

These lubricate reciprocating air tools by pressure feeding a fine mist of oil into the line. They should be located within 25' of tool, and mounted in an upright position (refer to the arrow for pro...

Heavy Duty Inline Air Lubricators - 398H

2 Products

Mining fittings are used for underground air or water service in the mining industry. They feature a metal to metal tapered seat and are made of zinc plated steel. Mining outlet pipe nipples are doub...

Mining / Joy / Hammerlok Stems, Nuts, Spuds, Menders, Joiner - 360

5 Products

Hex hose stems are used for medium to high pressure air, water, or liquid service. They have a longer barb than standard brass hose barbs, which allows for more a secure clamping method. They are com...

High Pressure Male Insert Air Stems - 237

5 Products

Whip Checks for hoses, also knowns as "Air hose safety cables" are an easy to use and low cost safety product to prevent injury if a hose disconnects under high pressure. Whip Checks can be attached ...

Safety Cables, Whipchecks, Whiplock, Whip Sock Restraints - 236S

10 Products