Hobbypark Universal 02093 M3 Column Socket Head Cap Screws 3x10 (10pcs) For HSP Redcat 1/10 RC Parts Replacement Parts Thread Diameter:3mm; Thread Length : 10mm; Head Diameter:5.5mm Overall Length (Excluding Head):12.9mm Material : 12.9 Class Ultra Hard and Durable Alloy Steel Pack of 10 Compatible with : All RC Models ,Redcat Lightning EP Drift, Lightning EPX PRO, Lightning STR, Rampage Chimera EP PRO, Sandstorm, Sandstorm TK, Shockwave, Tornado BB, Tornado Epx/epx PRO, Tornado S30, Tsunami (nitro), Tsunami EPX, Volcano Epx/epx PRO, Volcano MX, Volcano S30, Volcano STX, Volcano SV, Vortex Epx/epx PRO, Vortex SS ,etc.