... Class:8,Flanged Nyloc Nuts DIN6926,Flange Nut,Low nut/Flat Nut DIN439,DIN988 SHIMS,BODY CLIPS,Pins, Hex drivers(Hexagon Wrenches),Silicone & Rubber O ... a proper space, not too tight nor too loose.2. Best when used for the assembly of simple revolving parts.Size ... other rc parts,please contact us to ask for catalogues and price list. Top quality and Good price Pan Head Hex Socket Screws