Polycarbonate screws endure high temperatures.

Polycarbonate screws endure high temperatures. The durability of polycarbonate is found in a new line of screws manufactured by Micro Plastics (Flippin, AR; 870/453-2261). The high-impact strength and dimensional stability of these screws make them impervious to high temperatures. They are unaffected by greases, oils, detergents, aliphatic hydrocarbons, most mineral acids, and higher alcohols. Available head styles include pan, Phillips pan, fillister, and hex, and thread sizes range