Skip to content

Φ4.0-M3 Bolts, Screws, Nuts & Washers

49 products
Φ4.0-M3 Bolts, Screws, Nuts & Washers

A non-metric or special bore size. Confirm the thread form and tolerance with us before you specify it into a design.

In stock now: 49 lines; covering Screws (49), Shoulder Screws (49), ISO7379 Plain Shank (23), GB830 (16), ISO7379 Knurled (10); priced from $0.0471 per piece. Every line is sold by the piece — one piece is a valid order — and volume discounts apply automatically from 5%.

Related values on the same axis

Product families covered

Frequently asked

How much do Φ4.0-M3 fasteners cost?
Prices in our catalogue for Φ4.0-M3 run from $0.0471 to $0.2116 per piece, depending on diameter, length and material. There is no minimum order, and volume discounts apply automatically from 5%.
Is there a minimum order quantity for Φ4.0-M3?
No. Every line is sold by the piece, so you can order a single piece to check the fit and the finish before committing to a production quantity. Volume discounts start at 5% and step down as the quantity rises.
What do you stock in Φ4.0-M3?
Φ4.0-M3 Bolts, Screws, Nuts & Washers currently covers 49 lines across Screws, Shoulder Screws, ISO7379 Plain Shank, GB830, ISO7379 Knurled. The full list of sizes, materials and finishes on this page is live — use the filters at the top to narrow it down.
How quickly do you ship Φ4.0-M3 fasteners, and can you send them to the EU or Russia?
In-stock lines leave our Foshan warehouse within 24–48 hours. We ship worldwide, including the EU and Russia. For the EU we are appointing a responsible person under Regulation (EU) 2023/988 (GPSR); for EAEU orders the conformity documents are handled with the importing party, who is the applicant of record. We can supply an EN 10204 3.1 mill test certificate, a full technical specification and a packing list with weights on request.
Request quote Email us