Check the listing for details. 8" L-Type Boat Trailer Bunk Bracket Kit w/ Stainless Steel hardware lot of 4. Condition: New. Listed at 108.66 USD. Aluminum L-type bunk bracket kit with Stainless Steel Hardware Vertical L Types - Typically used in pairs to Mount post style Bunk Boards (4" x 8" Boards) (3" x 6" Boards) Mounts to your trailers 3" x 3" Cross Beam using Square 1/2" x 3" x 4 3/8" U-Bolts and then mounts the Bunk board using two 1/2" Diameter Bolts. This Aluminum L-type bunk bracket kit will fit your needs, including all Stainless-Steel Hardware to secure the bracket to your trailer. These bunk brackets are perfect for saltwater and freshwater environments. The aluminum bunk brackets and Stainless Steel hardware offers great corrosion protection in any marine environment. Go with the best for your boat trailer!SpecificationsAluminum L-type brackets.Stainless Steel Hardware.Excellent Corrosive Resistance.Multiple mounting holes for 2" x 4" or 2" x 6" bunk boards (not included).Complete kit fits 3x3 crossmembers.Includes(4) 8 inch Aluminum L-Type Bunk Brackets.(4) Stainless Steel U Bolts: 1/2 inch x 3 inch x 4 3/8 inch.(8) Stainless Steel, Lock washers, Flat washers and Hex nuts. Durable, aluminum replacement bracket works with another 90-degree bracket (sold separately) to stabilize 1 end of an extra-large bunk board on your boat trailer. Installs on level trailer frames with a U-bolt Features:Replaces vertical bunk bracket on your trailerStabilizes 1 end of the bunk board when used with additional bracket Requires 1/2" diameter U-bolt for installationConstructed of rustproof, corrosion-resistant aluminumGreat for freshwater and saltwater useMade in the USASpecs:Quantity: 4 bracketsDimensions: 8" tall x 5" wideDistance between trailer mounting holes (center to center): 3-9/16"Distance between bunk board mounting holes (center to center): 1-1/2"Plate thickness: 1/4"