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1/4-20 flat head phillips drive machine screws in grade 316 stainless steel. 100 per box. Excellent corrosion resistance. The standard fastener for many boatbuilding and exterior woodworking projects. Flat head screws install flush with the surface or are countersunk and the hole is plugged.
316 Series Stainless Steel contains molybdenum, which significantly increases corrosion resistance and overall fastener strength. These Stainless Steel Machine Screws are perfect for the marine environment. This is what all the big production boatbuilders use. There are also a million exterior uses where a stainless fastener will come in handy. Designed for harsh environments.