YS Engine YSS1004 50pcs Cylinder Head Fasteners for Glow and Nitro Engines  [YSS1004]

Set of fifty cylinder head fasteners

This 50pcs pack of cylinder head screws is a basic spare grouping intended for RC-scale glow and nitro engine maintenance. The screws function as direct replacements when OEM fasteners are lost, worn, or damaged during teardown.

Use these fasteners when overhauling or servicing the cylinder head to maintain secure clamping between the head and crankcase. They are offered as general spare parts for hobby engines and are useful for routine teardown, inspection, and tuning operations that require dependable thread hold.

When refitting, check the condition of crankcase threads and tighten to the correct torque for your engine size to prevent thread damage or head distortion. Keep screws sorted by length during disassembly so the head keeps correct spacing and compression after reassembly.