Apple part 923-0234 is a metric machine screw with M1.6 diameter and 3.6mm length, featuring a T5 Torx drive. This fastener is used throughout MacBook Pro assemblies for securing internal components, enclosure panels, and logic board retention. Compatible with all MacBook Pro models that specify this part number, the screw accommodates the precise engineering tolerances required for portable computing hardware. Typical applications include battery retention, thermal module mounting, and chassis assembly. Tested and guaranteed; available via quote.