Overview

• Pan head types have cylindrical heads with rounded edges and flat bearing surfaces
• Their low head height and large diameter provide increased driving power
• Steel is strong and durable but less corrosion resistant than stainless steel
• To improve its resistance to corrosion, it may receive additional finishes and coatings
• Torx drive types are also known as star drive fasteners
• They have a six-point star recess in the head that increases torque exertion, prevents cam out and boosts fastener life
• Type AB screws have the sharp, locating point of type A screws and the thread size of type B screws
• They are used to cut threads in thin sheet metal.