Losi LOSA6351 #8 Countersink Washers (8)

The Losi LOSA6351 is a pack of 8 number 8 countersink washers, a genuine Losi hardware part used to seat flat head screws flush against a mounting surface. Countersink washers create a proper bearing surface for a flat head screw's angled underside, especially in mounting holes that weren't originally countersunk or have worn oversized from repeated use.

Without the correct washer, a flat head screw can sit proud of the surface or fail to clamp evenly, which can lead to a loose connection over time. These washers are inexpensive, easy-to-overlook hardware that make a real difference in how securely certain screws seat, particularly on chassis and mounting plates that see vibration and repeated stress. This genuine Losi pack matches the factory number 8 countersink specification, so it's a direct fit wherever this washer is called for. Keep a pack on hand to make sure every flat head screw seats the way it's supposed to.