Rok Hardware # 1/4" - 20 Heavy Duty Die Cast Zinc Metal Wing Nut with Washer ...
Manufacturer: Rok. No tools needed, simply twist nut to tighten. No washer needed. Size: 1/4"-20 Material: Zinc Die Cast Finsh: Zinc. Can be used on hurricane shutter panels. Heavy Duty Wing Nut With The Washer Base.