Review on 🔩 Dorman 35654 5/8 Thread Size 8-inch x 2-5/8-inch Square U-Bolt for Enhanced SEO by Steven Brouillard

Heavier than I expected which hopefully means more stress. I'm happy with that. Fits perfectly. And I don't know my metals, but I would say steel. As another customer said in the Questions and Answers section, corrosion protected steel. According to Google, they are galvanized/surface treated with yellow zinc to prevent rusting. I can not confirm. I bought 4 of these to hold my trailer together while I'm on my way to repairs (luckily only 3 miles from my house). I will most likely leave them on the trailer for extra support after repairs and welding. Will update this review soon! Also, I bought cheaper U-Bolts and will compare the two types/sizes. I believe the other is 3/8 inch regular steel. I don't expect them to hold up as well as these.