These are the HPI 2 x 5mm Cap Head Screws. Spare screws for; HPIC2806 #86806 47 Tooth Steel Spur Gear Set HPIC2807 #86807 49 Tooth Steel Spur Gear Set HPIC2808 #86808 52 Tooth Steel Spur Gear Set FEATURES: Constructed of steel, black in color YOU WILL RECEIVE: Twelve 2 x 5mm Cap Head Screws REQUIREMENTS: 1.5mm hex wrench, GPMR8010 SPECIFICATIONS: Length: 5mm Diameter: 2mm jxs 3/22/06 ir/jxs &