The SSworxs bolts are made out of stainless steel for long lasting HIGH grade metal . Easy to install and considered an upgrade to Nissan Skyline R32/33/34 Z32 300zx 240sx/180sx Silvia cars . Specific for the gas tank filler neck .
Each bolt comes in a pack of 6 and custom size made per car model . Allen head style to make the install fun fast and safe for years time come .
Life time WARRENTY .