100 Corrugated PVC Roofing Plastic Screw Cover Cap Clear Strap CAPS VISTALUX

Good quality caps. Not too brittle or soft. I used these both on the polycarbonate sheets direct on the cross bars, and also on the top of the screw down aluminium glazing bars . As overkill I smeared a thin blob of clear silicone under the bottom of the cap before screwing it down and then a tiny blob on the screw head before popping the cap down.Word of advice, if using a cordless drill to put the screws in, don't go all the way until the cover starts to compress, leave a couple of turns and finish by hand. If you compress too much then they will distort and not be waterproof.

Just what I wanted. They will be ideal for the small corrugated sheets I'm using to make a (sort of) greenhouse. They would also be OK for the normal corrugations. They will take 4mm screws happily and there is enough gap in the cover to let you use round or csk heads. Thank you.

No dislikes did the job great and fitted perfectly

Came on time and does the job well, because of the plastic covering it means you can use whatever screws you want so that is a good thing.

These work very well. The plastic is quite hard in low temperatures and at first I had difficulty closing them. If using when its cold I'd recommend warming it up eg leave on a radiator for 30 mins then keep in an inside pocket. Once warmed up becomes very flexible and easy to use.

I wasn't sure if these would be value for money so only brought 1 box initially.They are really good.Brought a 2nd box

Used them on fences, cupboard and a tool shed i made all in the garden, i hate it when you need to unscrew something and the head of a screw has water damage, so i put these caps to good use

JUST WHAT I WANTED AND AT A GOOD PRICE..ALSO SPEEDY DELIVERY