uxcell Square U-Bolts 3-1/2"(100mm) Inner Width 150mm Length Carbon Steel M8 with Nuts, Frame Plate, Round Washers 2 Set 100x150mm(W*L) sold2025 The nylon insert compresses around

The nylon insert compresses around the threads of the bolt/screw greatly increasing friction causing the nut to lock around the screw

6-inch outside diameter

Again these are light weight use have not had the need to put something heavy one them either

Made of hight quality material

Assorted Grits

uxcell Square U-Bolts 3-1/2"(100mm) Inner Width 150mm Length Carbon Steel M8 with Nuts, Frame Plate, Round Washers 2 Set 100x150mm(W*L) sold2025 The nylon insert compresses arounduxcell Square U Bolts 3 1 2"(100mm) Inner Width 150mm Length Carbon Steel M8 with Nuts, Frame Plate, Round Washers 2 Set Read more Note: 1. We have carbon steel and 304 stainless steel material, square and round U bolts. Please select and purchase according to the information displayed. 2. When buying, you need to choose the right material according to the environment. 3. Light shooting and different displays may cause the color of the items in the