10pcs M6 Furniture Joint Connector Bolt & Cap Nut Kit Use for Cot Bed Crib Bolts Hex Drive Socket Cap Bolts - Hex Socket Screws Head (80mm)

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.

When I received them I was a bit worried because they are supposed to draw down to 34mm and turning them by hand only went down to 37.5mm. My project requires a 38mm span, (too close for comfort). I had to use Allen wrenches and force them to a smaller span. They went all the way to 34mm as they are supposed to, but only with some force at the end of travel.I haven't actually installed them yet, but once forced they seem to be OK.An update. 18 of the 20 worked just fine for my application. 2 of the female parts did not have good internal threads, I was unable to tighten them at all. They went together real easy.. too easy.. that's why they wouldn't tighten. I have submitted a note to the seller and waiting to hear back.2nd update: The supplier returned my inquiry regarding replacing just the 2 that were bad. It seems they can't just replace the 2 so they are sending me the whole package again. Their response was very good. I have upgraded to 4 stars since they are making good on the defective two.

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.

Perfect to hold some of my cabinets together. Great kit to have around.

A bolt and cap like this is typically used to hold two pieces of wood together. In which case the distance from the inside face of the cap to the inside face of the bolt head is actually what you want to know. Be advised that this dimension is 42.9 mm on the 40 mm nominal size. If unsure, you may want to buy a kit that contains a variety of sizes.

Decent quality rolled thread screw and blind barrel nut. Why the seller does not provide a full set of dimensions is beyond me — here are my own for the M6 50mm version:Bolt length (under head): 50mmBarrel depth (under head): 18mmBarrel outer diameter (under head): 7.8mmHead thickness; bolt: 2.5mm | barrel: 2.0mmHead diameter; bolt: 12.5mm | barrel: 13mmClamping lengths:- min: 53.7 ± 0.5mm (avg of four examples fully inserted, hand tight)- max: 63.5mm (inserted five threads, recommended min. depth)- full length, not inserted: ~66.8mmHex/Allen key size, both: 4mm (or 5/32”)For my purposes, I used a 5/16” drill bit for a tight fit on the barrel, and 15/64” for the bolt, where a bit of play was desirable. (7/32” or 1/4” would probably also work well.)It is likely that the dimensions for other the M6 sets are the same, with the exception of the bolt length; however, I am unable to confirm that presumption.

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...

Why pay ridiculous prices at the local hardware store for cheap crap hen you can have these for a fraction of the price. The were accurately described.