Library › Hardware › Hard-drive platters: 3.5 in Ø95 × 1.27 mm (Ø25 hole), 2.5 in Ø65 ×…

3.5 in hard-drive platter

3.5 in hard-drive platter: Ø95 × 1.27, Ø25 hole (aluminium or glass)

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

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Dimensions

platter	3.5 in
dia_mm	95
thickness_mm	1.27
hole_mm	25
mass_g	30

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From the full sheet

Hard-drive platters: 3.5 in Ø95 × 1.27 mm (Ø25 hole), 2.5 in Ø65 × 0.8 mm (Ø20 hole): every size, notes, mating features and sources. What are hard drive platter dimensions?

Other sizes

2.5 in platter