This Heavy Duty Forged D Ring comes with a bolt-on mounting bracket with 2 pre-drilled holes for added convenience. It is plated with a zinc coating, and forged in an industrial steel finish for long lasting durability, made to resist corrosion. This D ring requires no installation, simply bolt it onto your flatbed, truck, trailer, dock, warehouse, and even pickup vehicles for a secure anchor point system to tie down your load.