Description
Cox caulking gun nozzle holder 2N1201 is a holder piece that screws onto the front end of the caulking gun barrel and locks the threaded nozzle in place during dispensing. The part is an original spare part for the Cox Powerflow Avon 600 ml caulking gun and carries the manufacturer’s part number 2N1201.
The holder is made of black engineering plastic. The body has external grip ribs, by which the piece is tightened and opened by hand without a tool, and a wide flange that rests against the front edge of the caulking gun barrel. Inside the piece is a thread for fixing the nozzle.
Fitted to the front face is a green sealing ring that sits between the holder and the front edge of the barrel. The ring stops compound getting onto the threads and under the piece, so the holder still comes off after several dispensing sessions and the thread stays clean. The part weighs 41 g.
The nozzle holder is a wearing part: the thread and sealing ring wear from the compound, cleaning solvents and repeated tightening. By replacing just the holder, the caulking gun can be made tight again without renewing the whole barrel. Other wearing parts that fit the same gun are available as Cox spare part for caulking gun items: the piston, barrel, piston seal and clamping ring.
Intended use and suitability:
The holder locks the threaded nozzle to the caulking gun barrel and seals the joint. It is used whenever the gun dispenses compound through a threaded nozzle.
- Jointing and sealing: dispensing silicone, acrylic and polyurethane compounds into joints when the compound is fed from a sausage pack or cartridge through a threaded nozzle.
- Replacing a worn part: replacing a holder that leaks or spins on its thread, when compound oozes out between the base of the nozzle and the barrel.
- Using a range of nozzles: changing threaded nozzles during work when the width or shape of the joint changes.
- Maintenance rotation: keeping a spare ring and holder in the tool case, so hardened compound does not stop work in the middle of a joint.
Package contents:
- 1 pc nozzle holder 2N1201, sealing ring fitted
Features:
- Threaded fixing: the holder screws onto the front end of the caulking gun barrel and the nozzle locks into its internal thread.
- Grip ribs: the ribs on the outer surface of the body give grip for tightening and opening by hand.
- Sealing ring: the ring on the front face stops compound getting onto the threads and under the holder.
- Engineering plastic: does not rust or corrode from compounds and cleaning solvents.
- Original part number: 2N1201 matches the item in the manufacturer’s spare parts list.
Technical specifications:
- Part number: 2N1201.
- Material: engineering plastic.
- Colour: black, sealing ring green.
- Fixing: thread onto the caulking gun barrel.
- Nozzle connection: internal thread for threaded nozzles.
- Compatibility: Cox Powerflow Avon 600 ml caulking gun.
Caulking gun nozzle holder No. 2N1201 instructions for use:
Fitting: Release the pressure on the rack and remove the compound pack from the barrel. Clean hardened compound off the front edge of the barrel and the thread. Screw the new nozzle holder into place by hand so that the sealing ring sits evenly against the front edge of the barrel. Do not use pliers or a pipe wrench: the plastic thread stretches and fails when overtightened.
Changing the nozzle: Unscrew the holder, change the threaded nozzle and tighten the holder back by hand. Before dispensing, check that the nozzle is fully home and the thread is not crossed.
Cleaning and maintenance: Remove the holder immediately after work and remove the compound before it hardens. Dried compound comes off by careful scraping; do not soak the part in strong solvents for long periods. Check the condition of the sealing ring when changing and replace the holder if the thread is worn or the piece has cracked.
Warnings:
- Release the pressure on the rack before opening the holder: pressurised compound discharges from the direction of the nozzle.
- Wear safety glasses and protective gloves during dispensing and maintenance.
- Do not overtighten the holder with a tool; a failing plastic thread can fly off during use.
- Do not use a cracked holder or a damaged sealing ring.
- Follow the safety data sheet of the compound being dispensed; compound residue is left on the part.
- Keep out of the reach of children and pets: a small part is a choking hazard.
Frequently asked questions (FAQ):
Which caulking gun does nozzle holder 2N1201 fit? The part is a spare part for the Cox Powerflow Avon 600 ml caulking gun and is fitted to the front end of its barrel.
What is the nozzle holder needed for? It locks the threaded nozzle to the barrel and seals the joint, so that compound comes out only from the tip of the nozzle.
Is the sealing ring included? Yes, the sealing ring comes ready fitted in the holder.
When should the holder be replaced? When compound oozes out between the base of the nozzle and the barrel, the thread spins without gripping, or the plastic part has cracks.
Can the holder be tightened with a tool? No. The plastic thread is tightened by hand; a tool stretches the thread and breaks the part.
Does the same holder fit a 310 ml gun? No. The parts of the 310 ml and 600 ml models are not interchangeable.
Recycling instructions:
Remove compound residue before disposal. A clean plastic holder and sealing ring are sorted into plastic collection or energy waste according to local instructions; a part containing hardened compound goes to mixed waste. A part containing uncured compound is hazardous waste and is taken to a hazardous waste collection point. Sort the cardboard and plastic packaging separately.



