321-1104 - MK Products Conduit Set Screw

Keep Your MK Gun Feeding Smoothly

If you run an MK Cobra, Python, or Prince gun, you know that smooth wire feeding is the name of the game—especially when you are pushing soft 4043 or 5356 aluminum wire. The MK Products 321-1104 Wire Conduit Retaining Screw might look like a simple piece of hardware, but it is the only thing standing between you and a frustrating liner issue. This screw is designed to lock your wire conduit (liner) firmly into the back of the gun or the feeder connection, ensuring that the liner doesn't slip, slide, or back out while you are in the middle of a bead.

We've all been there: you're welding along, and suddenly the wire starts stuttering, or worse, you get a birdnest because the liner moved and created a gap. Often, this happens because the retaining screw has vibrated loose, stripped out, or was lost during the last liner change. Don't try to jam a random hardware store screw into your expensive push-pull gun. The 321-1104 is the exact OEM replacement, sized perfectly to bite into the conduit or retaining block just right without damaging your equipment. It installs easily with standard tools and provides the secure hold you need to trust your gear.

Regular maintenance of your welding gun is key to consistent results. When you are swapping out a dirty liner, take a second to inspect the retaining screw. If the threads look worn or the head is rounded off, replace it immediately with a fresh 321-1104. It is a cheap insurance policy against downtime. Keeping a few of these in your spare parts kit means you won't be shut down for hours over a missing fifty-cent part. This screw is built tough to handle the heat and abuse of the shop environment, ensuring your MK gun performs like the day you bought it.

Whether you are fabricating aluminum boats, trailers, or aerospace components, your equipment needs to be reliable. Use genuine MK Products parts to maintain the performance you paid for. This retaining screw ensures your conduit stays put, your wire feeds straight, and your focus stays on the puddle, not on fixing the gun.