The Screw Loose Custom MONSTER Case is a massive 1300 piece bulk m3 hardware kit. Perfect for multiple custom builds and maintenance for a variety of R/C trucks and cars. This MONSTER Kit allows you to choose any two of our smaller 650 pcs kits. Chose two of the following options; Black Button Head, Black Cap Head, Stainless Button Head or Stainless Cap Head. 300 combined SS nylon locknuts and 200 flat washers. 800 screws with varying sizes from 6mm – 30mm. All black hardware is 12.9 class black oxide alloy. The nyloc locknuts and flat washers are A-2 (18.8) stainless steel and this kit comes with a LARGE hardware case.