Square Drive Pan Head Machine Screws
Pan Head Machine Screws Driven with a Square Bit
Square Drive Pan Head Machine Screws in this selection range in both UNC (Coarse Thread) and UNF (Fine Thread) Sizes from #6-32 up to 1/4"-20. Square Drive machine screws are often used with nuts as well as driven into tapped holes. In practice, they tend to be mostly available in smaller sizes and the smaller sizes are referred to as screws, or less ambiguously as machine screws, although some kinds of machine screw can be referred to as stove bolts.
Square Drive Pan Head Machine Screws are available in a corrosion and weather resistant 18-8 Stainless Steel finish.