Description:

Thread Size: 1/4-20; Outer Diameter: 10mm / 0.39"; Height: 20mm / 0.78". Material: Made of aluminum alloy, wear-resisting, and durable to use.. Color: Black; Package Content: 2pcs x Flat Knurled Nuts. Great for 1/4"-20 magic arm articulated arm tripod drilling rig replacement.. Flat Knurled Nuts facilitate manual tightening, to open and close them without tools..