Unlike other listings, Alliance Hobby offers every screw in stainless. Most screws are Torx, with a couple Phillips, due to availability.

Also, I know you may have a steel, aluminum or plastic breech. All require different quantities of fasteners. Alliance Hobby includes more than you'll need, so you'll always be covered.

Kit Contains:

Front & Rear Grip Frame Screws: T15 Torx
Rear Breech Screw (Steel, Aluminum or Plastic): T15 Torx
Front Breech Screw: #1 Phillips
Grip Handles: T10 Torx
Trigger Cover: T8 Torx
Valve Retention Screw: #1 Phillips (not applicable on 13xx)
Barrel Band & SB Set Screw: 5/64" Hex
Stainless Roll Pin for 13xx orders (not applicable co2 series)

Also available is an economical, but fully functional precision tool kit, which contains bits for every fastener on the model.

If you don't have access to Torx (especially T8), you may consider adding this to your purchase.