Allstar Performance ALL50803 Red Plastic Fitting Cap for -6AN and 9/16-18 Thread, (Pack of 20)

The cap on my 3oz tube of dielectric grease cracked. I can't seem to find the original caps anywhere so I got these and they fit perfectly. Very happy, plus now I have extra caps for tubes of RTV and whatnot.

These are awesome. Used them on my Acura integra valve cover while getting the motor set up tuned in. Tight fit and didn’t leak although I wouldn’t trust them on the oil pan lol.

I ordered a ten pack and got just 5 pack after they told me my order shipped complete, now its going to take a week to get the other 5, horrible customer service, im done with amazon for good

I used these to protect threads on my reloading dies when in storage. Just helps to keep finger salts off of the threads as well as making sure threads aren't marred or dinged. They have a nice snug fit on my LEE die sets, and I haven't seen anything out on the market like them.I would recommend for anyone who has a large number of dies, who doesn't store them in turrets or presses. If you need male inserts for your turret positions or presses, take a look at this product: Allstar ALL50815 Plastic 10AN Thread