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Screws: Mobile Phone Spares
Smartphone screws are precision fasteners — typically pentalobe, Phillips, Torx, or tri-point head types — that secure the internal components to the chassis. Stripped, missing, or cross-threaded screws are an occupational hazard of repair work, and a supply of replacement screws is essential in any Nairobi workshop.
Screw Head Types
Apple iPhones use pentalobe screws for the two external bottom screws and a combination of Phillips and tri-point screws internally. This non-standard pentalobe head was introduced specifically to deter non-authorised repair — the tool required is uncommon in standard toolkits. Android phones more commonly use Phillips or Torx heads, though cross-head variants exist for internal board screws.
Common Loss and Damage Scenarios
Screws are lost when a phone is reassembled without all fasteners being accounted for — a particular risk when working on a model with many screws of different lengths. Cross-threading occurs when a screw is started at an angle, stripping the brass or plastic stand-off into which it threads. A stripped stand-off on a motherboard requires either a repair with a tap tool or a board-level fix.
Sourcing in Nairobi
Replacement screw sets for popular models are available on Luthuli Avenue, typically sold as a complete internal screw kit for a specific model. Kits for Samsung Galaxy and iPhone models: KES 300 to KES 800. Universal screw assortment trays with common M1.2, M1.4, and M1.6 sizes: KES 500 to KES 1,500, useful for shops handling multiple phone models. The correct length for each position is critical — a screw that is too long risks piercing the battery or damaging a flex cable on the other side of the board.
