Aluminum Alloy - 7075-T6, Heat treated for extra holding power. A light metal; one third the weight of mild steel with good electrical conductivity, non-magnetic and will not spark. This metal is completely compatible with many chemicals and is safely used in many food containers. These alloys are widely used in the plating and aviation industry today. Aluminum accepts paint readily and is frequently anodized to improve resistance to corrosion and abrasion.
 

18-8SS Lock washers are corrosion resistant, heat tempured to resist vibration and hold parts together tight! 18-8SS, which is a Type 300 series Stainless Steel, is one of the most widely used corrosion resistant metals for threaded and non-threaded fasteners. Uses include many marine, electrical and food industry applications. It has fair machinability and cold forming properties. Max. tensile strength: 150,000 PSI.
 

DIN 127, A2 (18-8SS) Lock washers are corrosion resistant, heat tempured to resist vibration and hold parts together tight! 18-8SS, which is a Type 300 series Stainless Steel, is one of the most widely used corrosion resistant metals for threaded and non-threaded fasteners. Uses include many marine, electrical and food industry applications. It has fair machinability and cold forming properties. Max. tensile strength: 150,000 PSI.
 

CP Titanium (Commercially Pure) Used in high heat applications to resist vibration, with less than half the weight of steel lock washers. Now available to buy online!