O.S. Engine OS79871555 Hex Socket Head Bolt M5x55 - 10 pieces  [OS79871555]

M5x55 hex socket cap screw - fitment notes

The O.S. Engine OS79871555 product is a 10-piece set of M5x55 hexagon socket head cap screws intended for use in RC-scale assemblies. The socket head is designed to work with a matching hex driver and provides controlled tightening in tight mounting positions.

Installation notes: fully seat the hex driver before applying torque, tighten steadily and avoid overtightening to protect threads and mating surfaces. Verify thread engagement and inspect mounting holes before final assembly to ensure correct fit.

Application: these screws are suitable for securing engine mounts, motor and gearbox attachments and other structural points on RC models; consistent fastener choice helps maintain repeatable build geometry and simplifies servicing.