20pcs M6 Furniture Joint Connector Bolt & Cap Nut Kit Use for Cot Bed Crib Bolts Hex Drive Socket Cap Bolts - Hex Socket Screws Head (30mm)

These are nice thick furniture connecting screws. Make sure that they are the right size for your furniture that you are connecting.

Excellent quality and as described.before purchasing I could not clearly understand what length of screw to get to clamp my item successfully. There is a range of clamping length that a screw and nut will give. This is not shown on the drawings.So after purchasing the mix pack, the following was found.The length of screw is given. This is the length of the screw from under the head of the screw.The length of the nut is 18 mm from under the head of the nut. Now the thread does not run the whole length of the nut hence the need to run the nut onto the screw to see the the minimum clamp length ie the minimum distance that the screw and nut will clamp down on.For a 40 mm screw has a minimum clamp length of 42mm. Round up to 43mm to allow error of measurement or sample differences.Allowing for a minimum of 6 thread engagement the maximum clamp length was 49 mm.So a 40mm screw will work from 44 mm to 49 mm. This gives a working range of 5mm.The working range will be the same for any length of screw.40mm screw will clamp from 44 to 49 mm50mm screw will clamp from 54 to 59 mmYou get the idea. One could add a millimeter onto the Maximum length and still be OK but I have not done this since I prefer 6 thread engagement rather that 4.5 to 5. since the door I am using theses on are very heavy.A quick way to convert Metric to imperial is to buy a cheap ruler with both and draw a line of the require length and measure in the preferred conversion, go to the web for a conversion table or buy a cheap vernier gauge with both metric and imperial markings.

Too long for my project, but still put to good use.

I use these in two ways when building a knife. Sometimes, I use them to attach scales (handles) to the blade. And, sometimes, I use them to attach a Kydex "throat" to the sheath. I wish I could find these in M-5 and a little shorter. I end up grinding them down on my grinder, both the barrel nut as well as the bolt part, in order to make them a usable length. It's a hassle because I grind until they get so hot, they burn my fingers, and I find it necessary to do this 3-4X per screw. But its the best I can do until I find a better way to deal with these.There is a market out there for hardware for this purpose. I can't imagine someone isn't filling this market, but if they are I don't think they are on Amazon. I have conducted several deep searches looking for fasteners the correct size and type.Anyway, I only give them 4-Stars for the purpose I am using them. They are made for screwing together pieces of furniture. I am confident if that were my use I would award them 5 stars.

Works great. High quality!

These are marketed as stainless steel, they are not. All the cap nuts are rusted in the inside and the bag they came in is full of rust dust.

They work and a neat bonus job they perform is showing how unlevel your floor is

I welded together some angle iron, and ordered the beautiful 20mm 30 pcs. kit of this cap nut-kit.To make it clear I wanted to advise the DIY crowd—these are super super nice in finish and quality, Thick chrome and they go together like a German-clock. To be clear: The male part is 20mm and the female part is about that same size on all the kits. For a one inch thick project these worked perfect (had to tighten all the way down).If you are clasping together 25mm of product—It would require the 25mm kit and so on. But I would not order a bigger size if you are using for example; 30mm or so on—the 30mm probably clasps up to 43mms or so on...So in reviewFor 25mm use 20mm. For 30mm use 30mm, for 40mm use 40mm or 30 or 35.I hope that is not to confusing—but just remember the "mm" measurement is the "male" part of the nut-kit and the "female" part stays the same size...