T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless M8 x 30mm, 5mm Thick, Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning

I got these for generic t-slot bolts for my Yakima HD crossbars. They fit beautifully, have a 'solid' build; nuts fit exactly as they should and no manufacturing defaults on the hardware I received.

Worked great for my Rhino Rack Rails on my Forrest River Camper.

1 t bolt was too large in diameter, and the set came with only 1 nut meaning I had to run out and purchase parts I thought I was getting to finish the project.

These T-track bolts perfectly fit into the slots of my Bak x4s tonneau cover which allowed me to mount cross bars over the bed of my Jeep Gladiator. They were nicely machined and I didn't noticed any thickness issues described by other reviewers.

Bought these to mount a ladder rack on a Retrax Pro XR bed cover.Width wise they fit perfectly, but were a bit thick.Had to grind down the bottoms a bit, but then they fit great.

I bought these to use with my BAK Revolver X4TS tonneau cover and Elevate rack. They fit the t-slot in the tonneau cover perfectly but not so much with the rack. The t-slot in the rack needs a t-bolt less than 5mm thick, so I had to grind all of these down to fit. Checking later, I saw that there is another product from a different company on Amazon which is only 4mm thick. I could have saved myself quite a bit of time by buying the correct product first! But I can't blame that on the seller. These bolts are otherwise great quality and reasonably priced

They appear to be well made and good quality steel. The only issue I have is the T Head thickness. The site advertised 4mm (what I need) for the M8 variation, and I received 2 packages of bolts with a thickness of 5mm. I'd give it 4-5 stars if I received what was advertised and that I actually wanted. If head clearance is important to you, don't bank on this being accurate.

Good bolts. The thickness of the head is 5mm. The work really good for t- bolt slots for Solar panel rails.

Needed a specific bolt for a bed rack I was putting together. Had to file down 2 side and slide them into a rail Yaren to get the rack together. Worked well for this purpose however I broke a few so they aren't the strongest out there but the kit is pretty handy.

Only some are the right dimensions to fit into track . Others are too wide and thick.

Quality looks great but the square head bolts are too large for my camper t tracks and unfortunately I couldn't return as I opened my camper a few days past my 30 day return limit. Total bummer!

I shouldn't be surprised - only 1 out of 6 actually fit inside my Thule 7052 crossbars.They are too thick - I will grind them down by hand to make them usable, but this is very poor quality control.Buyer beware!