Countersunk M3 x 30 Disk Screw HI2538011 by Hirobo, 10 pcs  [HI2538011]

M3 x 30 Countersunk Disk Screw Details

The Hirobo HI2538011 is supplied as a small kit of 10 countersunk Phillips disk screws, M3 x 30, suited to model helicopter building and routine maintenance. The countersunk head profile helps keep rotorheads and airframe plates level against their mating surfaces.

These screws are intended for locations where a recessed head prevents interference with rotating parts or linkages. The Phillips drive is compatible with common hobby tools and the disk-style countersunk head reduces concentrated loading on plastic or composite parts.

Fitting tips: start each screw by hand into a properly countersunk hole to avoid cross-threading, then use the correct Phillips driver and tighten until snug without excess torque to protect M3 threads in soft materials. When repairing or adjusting, swap identical-length screws to maintain geometry and balance across paired components.