Zipbolt 10.900 Countertop Miter Connector — 20 Piece Joint Fastener Drawbolt Pack with 5mm Hex Bit for Joining Countertops, Butcher Blocks, Furniture, and More - Single-Handed Tightening

These work well for joining butcher block slabs. They are easy to install thanks to the internal hex drive. I tried the ones with bolts on both ends (no access to tighten them) and these are far better. Take some time to get the counterbores and slots right in your piece - make a test piece and a drill / routing template.

Awesome seller, great product!!

I really like that you can tighten these from the 'top' and don't have to get in there in a tight space with a wrench.Cutting the slots for them is a bit tedius and I did end up breaking down and buying the (way over priced) template that this company sells. With the template and the proper router setup, pinstall is easy. Free hand drilling and cutting of a slot, not so much.

I am using these for butcher block countertops. I researched several different options for anchoring my joints, and this was the most cost effective option.Also they are very strong. I used tools owned,,,,,a skill saw and hole saws to create the countersinks. When joining they hold a lot of torque. I can apply a lot of force to the gear driven volt without worry of stripping. My next joint is the 45° corner joint. I will update with how well they hold up while under stress of moving the 300lbs after joining. I also fabricated some steel flat bars to hold the surfaces flush.

This product works really really great. I'm a contractor and I did not know that this even existed. Install butcher block Countertops, and it did the job really well. Highly recommend

The zip bolts are very easy to use and as you can see from the pictures did a great job joining to very large slabs of butchers block. After tightening the bolts we were able to pick up the 180lb butcher block and move it around without any effect on the joint. I would recommend getting a 1 3/8” forstners bit ( Diablo bits are great) to cut the hole for the bolt heads and then a 3/8” router bit to cut the channel for the shaft.

These are well designed and work great. But they're made out of low quality metal and strip out easily. I tightened a couple to test my seam, and they stripped out with the provided bit. I thought they were useless, but I discovered I could make them work by using an Allen wrench to tighten them.

Worked very well for a butcher block countertop I recently did for a customer.

Worked as described. Easy to install and tighten.

Used this on a desk project. They hold my pieces with enough strength to hide the seams on the other side. The provided bit works perfectly as well.Small recommendation is to make the channels a bit wider than you need to give you space for adjustments. Once everything is lined up, tightening the bolts is simple and quick.The only cons I have for zipbolts are the thickness. Most bolts are quite deep, which lebes very little material between the top, but otherwise this is all you'd expected. I will definitely use then again, and strongly recommend!

Working blind with arm fully extended under a countertop, the Zipbolts made adjustments super easy. The shape of the adjustable end of the Zipbolt makes it easy to locate the hex socket and tighten or loosen the bolt without having to reset the screwdriver position unlike a nut and bolt style connector bolt.

Used these on the upper and lower countertop joints of a bar I was building. Worked perfectly... easy to access and tighten....

Used to connect two pieces of kitchen countertop and it worked great