Overview

• Machine screws without washers can be used with both flat and lock washers
• Pan head types have cylindrical heads with rounded edges and flat bearing surfaces
• Their low head height and large diameter provide increased driving power
• Pozidriv drive types resemble Phillips drive types but have an additional cross-shaped slot to prevent cam out and allow more torque to be applied
• Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat
• It is used in high-stress, outdoor and corrosive applications.