Catalog number: SN-AA482 Usage: ●Special tool for installing flat nuts. Specifications: ●Nut head diameter (mm) x height: 20 x 9 ●TRUSCO flat sign nut tool for Φ20, 1 piece included Material/Finish: ●Body: Steel ●Surface treatment: Tin plated finish Caution: ●Attach the washer to the wall with a 4mm countersunk tapping screw (sold separately), then attach the body. Pass the threaded part of the head through the hole in the acrylic, etc., and attach it to the body. ●Please use a special tool to install flat sign nuts.
