Check the listing for details. Qty 25 HD Hurricane Shutter Panel Washered Wingnuts 1/4 - 20 Wing nut. Condition: New. Listed at 11.99 USD. Heavy Duty Washered Wingnuts Base Metal of Zinc1/4" - 20 - with 7/8" washer diameter Measurement: Imperial (Inch) Diameter: 1/4" Diameter-Thread Size: 1/4"-20 Finish: Heavy Duty Nickel Plated Material: Base Metal of Zinc Outer Diameter: 0.870" Thread: Coarse Thread Size: 20 Type: Wing Nut Wing Height: 0.580" Wing Spread: 1.100" To add a Power Wing Nut Driver to your order you must first select the above Add to cart button to add the wing nuts. Then select this link POWER DRIVE Sometimes our stock is ZERO on the wing nut drivers. Just save the link and our stock should be available within a week to place a order. You can also search using this number 202041372842 in a eBay search. A 15% restocking fee or more will be charged for returnsDepending on the condition when we receive.