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Standard
AllDIN 912DIN 933DIN 7991ISO 7380DIN 916YB 818YJT 13001YB 819DIN 976-1YJT 13002DIN 913GB 901JISB 1122TDIN 6334GB 818DIN 914GB 12618DIN 967GB 873GB 9074.8DIN 985GB 109
Material
All304 Stainless Steel40Cr Alloy Steel316 Stainless SteelPA66 Nylon10B21 Carbon SteelQ235 Carbon Steel1010A Carbon SteelCarbon SteelH58 BrassABS Plastic1010 Carbon Steel1022 Carbon Steel1022A Carbon Steel65Mn Spring SteelQ195 Carbon SteelSCM435 Alloy SteelH62 BrassAluminium Alloy303 Stainless SteelT2 CopperUnspecified35K Carbon SteelHSS High Speed SteelA3 Carbon Steel5052/7A03 AluminiumA00 AluminiumML08AL Carbon Steel201 Stainless SteelH59 Brass410 Stainless Steel
Grade
AllA2-70Grade 4.8Grade 12.9A4-70PA66Grade 10.9Grade A45HGrade 4Grade 8.8A4-80210-280HV30AL4Case Hardened 450 HV0.3430-510HV460-560HV30420-545HV30Grade 8Grade 14.9A2-5064 HRCA2-035140-170 HV200 HV304A4-035310SD6H59Grade 5.8
Surface Finish
AllPlainBlack Oxide (Hardened)Self ColourNickel PlatedBlackBlack OxideWhiteBlue-White Zinc PlatedWhite Zinc PlatedBlack Zinc PlatedColour Zinc PlatedAnodisedElectrophoretic BlackZinc PlatedBlack Nickel PlatedCopper PlatedClearRedFully GroundBlueYellowElectroplatedDacrometBrushedHardened Self ColourSandblastedFrosted Anti-SlipBlue Zinc PlatedBrass PlatedStainless Black Oxide
Diameter
All0#1/85/323/161/45/163/87/161/25/8M0.911/16-3/81/2-131/4-201/4-28G 1"G 1-1/2G 1-1/4G 1/2G 1/4G 1/8
Length
All1 mm2 mm2.5 mm3 mm3.5 mm4 mm 5 mm5.4 mm5.5 mm6 mm6.4 mm6.5 mm7 mm8 mm9 mm9.5 mm10 mm11 mm12 mm13 mm14 mm15 mm
Thread
AllFull ThreadCoarse ThreadPart ThreadFine ThreadLeft Hand ThreadUNC / UNF ThreadMetricImperial (US)Aluminium / IronAll SteelBSW / BSF ThreadSerratedStandard Length, Flat HeadHalf SteelRight + Left Hand ThreadStraightMedium DutyFlatLong Ball EndFlat TypeTaperedFlat HeadFlat TailExtra Long Ball EndWide TypeNarrow TypeBent TypeImperial
Variant
AllKnurledStandard LengthFull ThreadDk≈8.0SerratedWeld TypeToothedDk≈6.0Dk≈7.0FlatDk≈5.0SeamlessDk≈10Self-DrillingMetricDk≈12European StandardBlue NylonBlack 304With WasherPlain ShankPurpleGoldBlackSilverGreenSingle HoleHex Bit (Metric)Without WasherDk≈11

Φ4.0-M3 Bolts, Screws, Nuts & Washers

3 products
Grid Price list
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.

Related values on the same axis

1/2 1/4 2# 10# 3/16 3/8 4# 5/16 5/8 6#

Product families covered

Screws 49 Shoulder Screws 49 ISO7379 Plain Shank 23 GB830 16 ISO7379 Knurled 10

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.
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. Your order total is confirmed in the cart, before payment.
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.
Product Diameter × Length Material Stock Unit price
Socket Head Shoulder Screw Φ4.0-M3x4 304 Stainless Steel Socket Head Shoulder Screw Φ4.0-M3x4 304 Stainless Steel
Plain
 Φ4.0-M3 × 4 304 Stainless Steel In stock Log in to see prices Log in to order
GB 830 Slotted Cheese Head Shoulder Screw Φ4.0-M3x4 304 Stainless Steel GB 830 Slotted Cheese Head Shoulder Screw Φ4.0-M3x4 304 Stainless Steel
Plain
 Φ4.0-M3 × 4 304 Stainless Steel In stock Log in to see prices Log in to order
Socket Head Shoulder Screw Φ4.0-M3x4 304 Stainless Steel Socket Head Shoulder Screw Φ4.0-M3x4 304 Stainless Steel
Plain
 Φ4.0-M3 × 4 304 Stainless Steel In stock Log in to see prices Log in to order
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