These hot dipped galvanized bolts are specially suited to work in harsh marine enviroments

this kit is commonly used to in heavy duty Boat Trailer bunk bracket holding 3 inch wide x 8 inch tall or 3 inch wide x 12 inch tall bunks.

this kit includes:

8 x 1/2 inch x 4 1/2 inch galvanized bolts

8 x 1/2 inch galvanized nuts 

8 x 1/2 inch galvanized lock washers