Screw & Driver Size Reference

Which screwdriver a device actually takes, and why the wrong one strips the head.

What you provide

Filter by driver, size or device — leave empty for the full table.

Result

14 common sizes

Sizes are given with what they are typically found in, because the driver alone is not enough — Torx spans T3 to T15 across devices that look similar from outside, and picking by name rather than by size is how heads get rounded. Two are worth knowing specifically: pentalobe exists to deter opening rather than for any mechanical reason, so a Phillips in a pentalobe head will destroy it; and security Torx has a pin in the centre that stops a plain Torx seating at all. Where a device is not listed, measure rather than guess — a driver one size down turns in the head and strips it.

Diagnostic telemetry
Pentalobe P2 (TS1)Apple's deliberate deterrent. A Phillips will destroy the head.
iPhone bottom screws, most models since the iPhone 4
Pentalobe P5 (TS5)
MacBook Air and Pro bottom case
Pentalobe P6 (TS6)
Older MacBook Pro battery screws
Tri-point Y000
iPhone internal brackets, Apple Watch
Torx T3 – T5
Phone and tablet internals, camera brackets
Torx T6 – T8
Laptop hinges, drive caddies, game controllers
Torx Security T8H – T10HThe pin in the centre is why a plain Torx will not seat.
Games consoles
Torx T10 – T15
Desktop drive cages, some laptop bottom cases
Phillips PH00
Phone and laptop internals — the most common small electronics size
Phillips PH0
Laptop bottom cases, drive brackets
Phillips PH1
Desktop drive cages, PSU screws
Phillips PH2The size most household screwdrivers already are.
Desktop case screws, motherboard standoffs
Hex H1.5 – H2.5
Drone and camera gear, some laptop hinges
Flathead 1.5 – 2.5 mmUsing one on a Phillips head is how heads get stripped.
Prying and battery connectors rather than screws

What this cannot tell you

  • A reference for common cases, not an exhaustive list. Where a device is not listed, measure rather than guess — a driver one size down turns inside the head and rounds it.
  • Sizes vary between models and revisions of the same product. Treat this as a starting point rather than a specification.
  • Runs entirely in your browser. Nothing is looked up, transmitted or stored.

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