YIDU69Q 4 Pcs 4 Inch Wide Square U-Bolt for Trailer, 1/2" x 4" x 4-1/8", Electro-Galvanized Steel

YIDU69Q 4 Pcs 4 Inch Wide Square U-Bolt for Trailer, 1/2" x 4" x 4-1/8", Electro-Galvanized Steel

U bolt inner width: 4", adjustable length: 2-1/2" - 3-3/4" Frame plate thickness: 3/16" U bolt rod diameter: 7/16", Threads size: 1/2"-13 Low carbon steel, electro-galvanized Package list: 4pcs square u bolt with plate and nuts Specification Applictaion:Square U-bolt great for secure a spare tire mount on camper, wood, etc. Suitable for RV bumper, boats, plumbing, ski boat, sailboat trailer, car roof rack and other home and industrial applications. U bolt inner width: 4" (103mm), adjustable length: 2-1/2" - 3-3/4"(65mm-94mm) U bolt rod diameter: 7/16" (11.2mm),Threads size: 1/2"-13 Frame plate thick: 3/16" (4.8mm) Material: low carbon steel,Finish: electro-galvanized