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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 mm5 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

M3 Bolts, Screws, Nuts & Washers

4 products
Grid Price list
M3 Bolts, Screws, Nuts & Washers

M3 is a metric thread with an 3 mm nominal diameter and a coarse pitch of 0.5 mm (ISO 261). A standard hex head takes a 5.5 mm spanner across the flats.

In stock now: 3,720 lines; covering Screws (1,718), Socket Head Screws (664), Machine Screws (573), Stud Bolts & Thread Rods (523), Self-Tapping & Drilling Screws (452); priced from $0.0010 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 1,718 Socket Head Screws 664 Machine Screws 573 Stud Bolts & Thread Rods 523 Self-Tapping & Drilling Screws 452 Self-Tapping Screws 452 Standoffs 447 Single-End Hex Standoffs 249 Nuts 247 Set Screws 243 DIN912 226 Anchors & Fastener Assemblies 201

Frequently asked

What thread pitch and spanner size does M3 use?
A standard M3 metric coarse thread has a pitch of 0.5 mm (ISO 261). A hexagon head M3 takes a 5.5 mm spanner across the flats. We also stock fine-pitch and imperial equivalents — ask for the size list.
How much do M3 fasteners cost?
Prices in our catalogue for M3 run from $0.0010 to $16.0559 per piece, depending on diameter, length and material. There is no minimum order.
Is there a minimum order quantity for 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 M3?
M3 Bolts, Screws, Nuts & Washers currently covers 3,720 lines across Screws, Socket Head Screws, Machine Screws, Stud Bolts & Thread Rods, Self-Tapping & Drilling Screws, Self-Tapping Screws. 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 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
YB 818 Cross Recess Pan Head Screw (Yuebiao) M3x160 304 Stainless Steel YB 818 Cross Recess Pan Head Screw (Yuebiao) M3x160 304 Stainless Steel
Plain
 M3 × 160 304 Stainless Steel In stock Log in to see prices Log in to order
DIN 976-1 Threaded Rod (Full Thread Stud) M3x160 304 Stainless Steel DIN 976-1 Threaded Rod (Full Thread Stud) M3x160 304 Stainless Steel
Plain
 M3 × 160 304 Stainless Steel In stock Log in to see prices Log in to order
GB 901 Double End Stud M3x160 304 Stainless Steel GB 901 Double End Stud M3x160 304 Stainless Steel
Plain
 M3 × 160 304 Stainless Steel In stock Log in to see prices Log in to order
Ring M3x160 304 Stainless Steel Ring M3x160 304 Stainless Steel
Plain
 M3 × 160 304 Stainless Steel In stock Log in to see prices Log in to order
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