They do what they supposed to do: hold things together.They are well built and durable. Used to mount a metal frame basket to a bicycle cargo rack.

**Review: Yinpecly 4 Pack Square U-Bolts 1'/25mm Inner Width 2.75'/70mm Length 304 Stainless Steel**I recently received the Yinpecly 4 Pack Square U-Bolts, and as a first-time buyer of this product, I wanted to share my initial impressions, personal opinions, and overall thoughts. Here's my detailed review based on my first-hand experience.### **Build Quality**The first thing that stood out to me was the build quality. These U-bolts are made of 304 stainless steel, which is known for its excellent corrosion resistance and durability. Upon unboxing, I immediately noticed how sturdy the bolts felt, and there was no indication of any cheap or flimsy material. The finish was smooth without any sharp edges, and all threads were in perfect condition. When you’re investing in hardware like this, you want to feel confident that it will hold up under pressure, and these definitely passed the test.### **Performance and Functionality**The Yinpecly U-bolts came as a set of four, complete with washers, nuts, and frame plates. Having all the accessories included was convenient. Hardware like this either works or it doesn’t—there’s essentially no middle ground, and these performed admirably. The bolts fit perfectly and securely, delivering exactly what I needed for a small project involving a trailer. The 1'/25mm inner width and 2.75'/70mm length specifications were true to description, allowing for a snug and reliable installation.I tested these on an automobile trailer setup to ensure a solid grip, and they held up excellently under moderate tension. The frame plates added extra stability, which was a nice bonus, especially for potential heavy-duty use cases like ski boats or sailboat trailers. Although I haven’t experienced long-term use yet, my first impression is that these will withstand repeated exposure to outdoor elements without rusting or weakening.### **Ease of Use**Installation was simple and didn’t require any advanced tools or technical skills. Everything aligned well, and the washers and nuts screwed on easily without cross-threading or any frustration. The design of the square U-bolts made them particularly versatile for securely mounting square tubing and frames, which is why I got them in the first place. You’ll appreciate the thoughtful engineering that eliminates any unnecessary hassle.### **Value for Money**For the price point, I’m very satisfied with what I received. Considering the high-quality stainless steel construction and the inclusion of all the necessary hardware, these U-bolts are worth every penny. It’s hard to find solid, dependable hardware at a reasonable cost, but Yinpecly nailed it with this product.### **Bottom Line**To sum it up, my experience with the Yinpecly 4 Pack Square U-Bolts has been extremely positive. They’re sturdy, reliable, and well-built, delivering exactly what they promise. There’s no guesswork involved here—these are straightforward hardware pieces that work without any issues. Whether you’re working on a trailer for an automobile, a ski boat, or a sailboat, I feel confident recommending these.If I had to nitpick, I’d say it’s too early to speak to long-term durability since I’ve only used them briefly. However, based on the excellent build quality and material, I don’t foresee any problems down the line.### **Final Rating: 5/5**These U-bolts do what they’re supposed to do—securely, reliably, and without any headaches. They pass the hardware reliability test with flying colors, and I’m more than happy with my purchase. If you’re in the market for dependable square U-bolts, you can’t go wrong with these.

I used these to attach 3" PVC pipes to 1" steel tubing on my kayak trailer. By far the best way I've found to attach to my trailer!

One of the u-bolts had bad threads on one side

Adding additional tie down points on my kayak trailer and these were just the right size . Already had some 6mm t-nuts and this makes it a breeze. Being 304 stainless no worries about rusting.

These Yinpecly 4 Pack Square U-Bolts are made with high-quality stainless steel. The threads are sharp and concise, and the brackets are also high-quality. These are excellent U-bolts that will last a long time in the weather.I really liked that they fit T-posts perfectly. I have a ranch and use T-posts for fencing. These U-bolts worked perfectly for putting signs on the T-posts. I'm very happy with this product and will be getting more.

Item worked great on my golf cart rear seat cup holder assembly.

I bought this to use it as a fastener for my roof rack and it worked like a charm.