These are Du-Bro’s “Permanent Mount” 2-56 Blind Nuts. FEATURES: Zinc plated, metal construction. Ideal for mounting engines, landing gear, cowls, hatches, etc. The perfect mounting nut for hard to reach areas. INCLUDES: (4) Blind Nuts REQUIRES: Drilling a 3.2mm hole to install SPECS: Diameter: 6.8mm OD of flange Length: 3.9mm Thread Size: 2-56 tjt 032102 ir/kh kr3/14/03 BOX DIMENSIONS: 2.25″ W. X .25″ H. X 2.25″ L. BOX WEIGHT: .02 LBS.
