TJ & LJ Jeep Wrangler Windshield Door Hinge Bolts 38 Piece Rust Proof Stainless SetHex Allen Head Bolts Rust and Corrosion Proof Stainless Steel. These bolts come in both our black stainless and our bare stainless. The additional cost for the black stainless is to pay for the bonding process. 34 countersunk upper and lower hinge bolts (both sides), 2 cap head bolts (both sides) 2 hardened washers Any bolt that is not stainless, like ours, or titanium, will rust. In some coastal areas this process might take months or even weeks. We