*Type 316 Stainless Steel should always be specified for salt water applications.
316 grade stainless steel has a lower carbon content than 18-8 type stainless (302HQ, 304 and 305) and contains molybdenum for superior corrosion resistance in salt water and other highly corrosive environments. It is the grade of stainless steel to be specified in any seaside application to prevent rusting & bleeding through.
Important Installation Instructions:
If the screws are to be driven by a screw gun, be sure the bit is securely seated in the square recess of the screw. Start slowly and gradually increase speed until the head is driven flush. A high driving speed increases the chance of stripping the square drive recess. If the tool has an adjustable torque collar, use a piece of scrap lumber to determine the proper setting needed to drive the head flush with the surface. This will prevent twisting off the screw head.