Bolt Dropper hardware perfect for use near salt water fresh water and other related projects. TOP QUALITY: Rated for both indoor and outdoor use. Superior corrosion resistance to regular plating made with 100% Stainless Steel. VALUE:Get the most out of your purchase! We offer different size packages so you won t have to worry about running out of hardware in the middle of your project. Bolt Dropper Hardware is the best on the market and we back our claim 100%. Buy With Confidence SPECIFICATIONS: #8 x 1-3/4 Square Drive (#2 Robertson Drive). Material: 18-8 Stainless Steel WARRANTY:Bolt Dropper hardware come with a 100% Satisfaction Guarantee if you have any problems we will replace them free of charge!