Hirobo HI2511014 M3 x 30-S Reinforcement Bar for RC Helicopters  [HI2511014]

M3 x 30-S reinforcement bar for model helicopters

The Hirobo cross member HI2511014, marked M3 x 30-S, functions as a reinforcement bar between frame plates on model helicopters. It transfers local loads and keeps mating plates aligned while leaving the main airframe geometry unchanged.

To install, orient the cross member between the mating plates, ensure nothing interferes with adjacent components, and fasten with correctly sized M3 screws or studs. Confirm screw length for your particular stack height; do not rely on supplied hardware unless explicitly stated.

Fitted as part of a build, this cross beam can reduce micro-movements that affect rotor and servo repeatability, aiding consistent flight behavior. Perform early post-build checks on fastener tightness and thread condition to maintain alignment over time.