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

2.5 in platter

2.5 in platter: Ø65 × 0.8, Ø20 hole

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

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

platter	2.5 in
dia_mm	65
thickness_mm	0.8
hole_mm	20
mass_g	7

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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

3.5 in hard-drive platter