Screws Compatible With Aluminum Galvanic Corrosion . The process of galvanic corrosion occurs when two different metals are touching. Aluminum Screws . Because galvanic corrosion happens when heree into contact. Carbon Steel Screws . Unplated steel screws will cause corrosion … How to Safely Use Stainless Steel Screws in Aluminum Do not expose to water. Salty water is an electrolyte that can easily corrode either. Create barriers. To reduce chances of the metals getting corroded reduce the contact. Check the surface area of metals. Trilobular stainless steel self-tapping screws , on the other hand, are ideal. Self-tapping screws are like drill bits; they have a sharp tip like a cutting blade and a thread that goes all the way down the length of the screw . They are designed to keep thin metal from denting.

Jul 08, 2007 RobDar. I was told by a mechanic that the only problem with stainless and aluminum is when used on a high stress hull rivet. The stainless is harder than the aluminum .so on a keel rivet or other high stress local, the aluminum hull will fail/ tear before the stainless rivet.This is why the manufactuers use aluminum rivets. Mar 19, 2010 I’m adding some more rod holders to my aluminum hull boat . Which type of screws are you supposed to use ? I know some coatings and metals can react with the alumiminum . Thanks guys. How to Use Aluminum Screws on Steel Roof Place the first panel of steel roofing parallel with the roof joists (or rafters or purlins,. Place a 1/4-inch nut driver on a drill/driver. Hold the drill/driver with one hand and use it to place the tip of the screw 1-inch from.

Shop our selection of Aluminum , Screws in the Hardware Department at The Home Depot. When assembling aluminum panels, you want to use the strongest fasteners possible to ensure that your project holds together in high winds and winter weather. Despite the dissimilar metals and risk of corrosion , stainless steel screws are heremended fastener for aluminum panels. Galvanic Corrosion .