Head Wood Screws can be made from — brass, bronze, aluminum, etc. — steel screws are the most useful for woodworking and interior DIY projects. They’re strong, affordable and readily available in a vast range of sizes. But old-fashioned tapered steel wood screws can be a pain to use. Many woodworkers switched to inexpensive drywall screws when they became readily available a few decades ago. Made from harder steel that can penetrate wallboard and studs, drywall screws drive in quickly and without the need for predrilled pilot holes. However, they’re relatively brittle and will snap when subjected to high drive forces or stress, making them a poor choice for projects requiring strong construction.

Originally developed for the building and wood products industries, production screws, as well as construction and deck screws, are made from carbon steel heat treated to provide a good balance of hardness and toughness.

Fortunately, a different kind of screw has largely replaced traditional tapered and drywall screws. “Production screws” have points and threads sharp and strong enough to penetrate the hardest woods and manmade materials — even some metals. Their heads and shanks are durable enough to withstand high torque delivered during driving with a power drill or impact driver, and can withstand the punishing stresses that screw joined furniture or cabinet parts may be subjected to.

The best screw materials for resistance to rust and corrosion are silicon bronze and stainless steel. The best screw materials for resistance to rust and corrosion are silicon bronze and stainless steel.

For even greater resistance to rust and corrosion, the two best screw materials are silicon bronze and stainless steel. Weaker than regular steel screws, chromium alloy stainless steel screws come in two popular grades: Grade 305 stainless is good for applications where coated deck screws don’t have sufficient corrosion resistance, while grade 316 are best for projects that are exposed to salt air or in areas where severe corrosion is likely to occur. Head Wood Screws - http://www.din571.com/product/Square-wood-screws/