Jocon SF9000 PVC Flexible Round End Caps Shelf Organizer Tip Caps Wire Thread Protector Cover (inner diameter 19mm)

I bought these to be used as caps for partially used fountain pen ink cartridges.These rubber caps fit tightly over the open end of an ink cartridge when you are done with a cartridge but there is still ink in it; no waste of ink.Because there are different size ink cartridges I purchased both 6mm & 7mm size pouches of the caps.The size is based on the inner size of the cap and outer size of the ink cartridge, which is a better way to measure and use.

Works

Just what I needed to cover bolt ends in the cargo bay of my motor home. No more scratches!

Used these with Wild Hog rail deck mesh where I had to field cut epoxy coated mesh fencing

Wow! Very happy! I used these (10mm) to protect my air tools ( 1/4 quick connect ) male fittings. The cheapest price of one cap made for these fittings is $3 and I am so happy to find these instead! I’m telling all of my buddies to get these! Right tight that won’t fall off yet still easy to take off. I’ll be buying more!

The mid-2000 version of the Bertha storm panel bolt consisted of a 1/4-20 threaded screw, a hex head and a 1/4" lag bolt (see my photos). These came with a white vinyl cap to protect the threaded part only. After so many years in the Florida sun these caps became brittle and very difficult to remove. They also did not protect the hex head. So after many years near salt water these heads started to corrode. A good portion of my house is now dark grey and I did not want to see a bunch white caps sticking out all over the place. Therefore I chose to use the Jocon black 10mm caps to cover both the threads and the hex head. Although their 9mm cap provided a slightly tighter fit around the hex head, the 9 mm cap is too short for these bolts. The 10 mm caps aren't quite as tight but I haven't had any fall off even in direct sunlight and 90+ temperatures. I also froze a few in my freezer and they stayed put. The inside length up to the tip is about 0.78".

Ok, quickly on the item. If they fit your bolt these should be great. They are pretty flexible and I use them as a liquid tight seal over a squeeze bottles.Now....for the review system.....why would "warmth" have a star rating? If there is anything on your body other than a tooth that this would fit over, you have bigger (smaller?) problems! But seriously....just weird. Good product though.

I bought these for a different purpose than they are intended. I bought a trailer hitch with a barrel type locking mechanism that I was concerned would collect road crud if left exposed. The 18mm size is flexible enough to fit tightly on the lock. By cutting the excess length, this item covered the lock, providing protection and eliminating my concern that the lock would collect debris. Price was very reasonable, delivery was fast, and I am completely satisfied with my purchase