National Hardware Swivel 5/16" Screen Door Closer lightweight magnesium blade material works

lightweight magnesium blade material works well with air entrained concrete

Type 2 UL stove boards are UL-1618 listed for thermal and ember protection

Aluminum finish

Blades are made of heat-treated 8650 alloy (nickel-chromium-molybdenum) steel

National Hardware Swivel 5/16" Screen Door Closer lightweight magnesium blade material worksNational Hardware's Swivel Forged is designed for preventing over twist stress on the cable, wire rope, or chain. Manufactured from hot rolled steel for durability. For quick attachment For interior and exterior applications Coated with Weatherguard Protection to withstand harsh weather conditions and prevent corrosion. Safe working load of 1,260 lbs