National Hardware N280-677 V7643 Locking T-Handles in Chrome, Shaft: 5/16" sq x 3-3/4" The product is chrome Garage door MTL T-Handle Use Outside Of The Door Open & Lock Door The product is manufactured in China Also can be used on many camper tops Chrome finish Shaft is 5/16-Inch by 3-3/4-Inch Read and understand all instructions before beginning work