Shorty's Silverado's come with 2 silver and 6 black bolts to help distiguish the nose from the tail of your board. They are half threaded for strength against bending and breakage. Manufactured to precise lengths for all applications, leaving no excess bolt sticking out past the nut. Smaller counter-sinking head is lighter and puts a much smaller dent in your deck when installed, which helps prevent breakage.
