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M2.5 Screws

(119 products)

M2.5 screws are 2.5 mm across the thread with a 0.45 mm coarse pitch. They sit between M2 and M3 and are the usual choice for laptop bottom covers and hinges, Raspberry Pi and other single-board computer mounting holes, motherboard brackets, security cameras and small radios. This collection gathers all our M2.5 lengths, from short 3 mm screws to 14 mm.

M2.5 is easy to mistake for M2 or M3 by eye, so check with calipers: a worn M2.5 thread still reads close to 2.4-2.5 mm, while M2 reads about 1.9 mm and M3 about 2.9 mm. Measure an old screw with calipers: the thread diameter gives the M number and the length gives the second figure. On a countersunk head the length is measured overall, head included; on a flat-bottomed head it is measured from under the head to the tip. When a cover or hinge uses several lengths, keep the old screws in order as they come out so each new one goes back into the same hole.

Related sizes: M2 screws · M3 screws · M2.5 x 6mm · M2.5 x 8mm

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How do I know these screws will fit my device?

Every listing states the exact metric thread, length, head type and finish. Match it against your original screw, your model's page in our model guides, or measure with the finder tool. If it's still wrong, we make it right.

Can I buy just one screw?

Yes — that's our specialty. Most sizes are sold as single screws, with 10-packs, 50-packs and 100-packs for shops and fleets. Each cart line needs to reach $4.99, so very low-priced singles are added in a small multiple.

How fast is shipping?

Orders usually ship within 24 hours (Monday to Saturday) from Elgin, South Carolina, with tracking. US orders of $25 or more ship free, and typical US transit is 1 to 5 business days. See the shipping policy.

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