Product Description

Silicon bronze fasteners are excellent for use in many marine and commercial applications which was made from copper with silicon added for strength.Silicon bronze is known as a high-strength alloy,having a several important factors including high conductivity,excellent corrosion resistant to sea water,gases,sewage and atmospheric conditions. 
Thread cutting screws may or may not have a female component and, like other screws they are used to hold two (or more) parts together.Thread cutting screws are unique because, just like their name implies, they cut their own thread and produce shavings.
Silicon bronze slot roundt head wood screw:
Diameter of screw:#4 - #20 
Drive:Slot
Length:3/8"-4"