![terminology - What do the numbers in screw sizes M3, M4 etc. mean? - Home Improvement Stack Exchange terminology - What do the numbers in screw sizes M3, M4 etc. mean? - Home Improvement Stack Exchange](https://i.stack.imgur.com/oVr5u.jpg)
terminology - What do the numbers in screw sizes M3, M4 etc. mean? - Home Improvement Stack Exchange
![M3 x 0.50 x 10 MM (FT) Coarse Thread ISO 4762 / DIN 912 Class 12.9 Socket Head Cap Screw Alloy Steel Black Oxide | ASMC Industrial M3 x 0.50 x 10 MM (FT) Coarse Thread ISO 4762 / DIN 912 Class 12.9 Socket Head Cap Screw Alloy Steel Black Oxide | ASMC Industrial](https://cdn11.bigcommerce.com/s-hlsk6yq0/images/stencil/1280x1280/products/278883/1349121/item-shcs-blk__47510.1598032207.jpg?c=2)
M3 x 0.50 x 10 MM (FT) Coarse Thread ISO 4762 / DIN 912 Class 12.9 Socket Head Cap Screw Alloy Steel Black Oxide | ASMC Industrial
![M3 x 8mm Full Thread Cap Head Screws (DIN 912) - 18-8 / 304 Stainless Steel: Accu.co.uk: Precision Screws M3 x 8mm Full Thread Cap Head Screws (DIN 912) - 18-8 / 304 Stainless Steel: Accu.co.uk: Precision Screws](https://i.accu.co.uk/360/_APC/SSCF-A2/0_14.png?cw=100.0000%25&ch=100.0000%25&scale.option=fill&w=400&h=0&q=90)
M3 x 8mm Full Thread Cap Head Screws (DIN 912) - 18-8 / 304 Stainless Steel: Accu.co.uk: Precision Screws
![Black Nylon Machine Screw and Stand-off Set – M3 Thread : ID 4685 : $16.95 : Adafruit Industries, Unique & fun DIY electronics and kits Black Nylon Machine Screw and Stand-off Set – M3 Thread : ID 4685 : $16.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/4685-01.jpg)
Black Nylon Machine Screw and Stand-off Set – M3 Thread : ID 4685 : $16.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![Amazon.com: VIGRUE 570PCS Stainless Steel M3 Button Head Hex Socket Cap Screw Bolts, M3 x 4/5/6/8/10/12/14/16/18/20/25mm Screw and Nuts Flat Washer Assortment Kit, Fully Machine Thread : Industrial & Scientific Amazon.com: VIGRUE 570PCS Stainless Steel M3 Button Head Hex Socket Cap Screw Bolts, M3 x 4/5/6/8/10/12/14/16/18/20/25mm Screw and Nuts Flat Washer Assortment Kit, Fully Machine Thread : Industrial & Scientific](https://m.media-amazon.com/images/I/511swDd8tcL._AC_.jpg)
Amazon.com: VIGRUE 570PCS Stainless Steel M3 Button Head Hex Socket Cap Screw Bolts, M3 x 4/5/6/8/10/12/14/16/18/20/25mm Screw and Nuts Flat Washer Assortment Kit, Fully Machine Thread : Industrial & Scientific
![Metric Thread M3*10 mm 304 316 A2 A4 Stainless Steel Hex Socket Head Cap Screw Bolts - China Screw, Bolts | Made-in-China.com Metric Thread M3*10 mm 304 316 A2 A4 Stainless Steel Hex Socket Head Cap Screw Bolts - China Screw, Bolts | Made-in-China.com](https://image.made-in-china.com/202f0j00FmuEtwWaaTbD/Metric-Thread-M3-10-mm-304-316-A2-A4-Stainless-Steel-Hex-Socket-Head-Cap-Screw-Bolts.jpg)
Metric Thread M3*10 mm 304 316 A2 A4 Stainless Steel Hex Socket Head Cap Screw Bolts - China Screw, Bolts | Made-in-China.com
![Ingersoll Cutting Tools - Cap Screw for Indexables: T10 Torx, M3.5 Thread - 62270244 - MSC Industrial Supply Ingersoll Cutting Tools - Cap Screw for Indexables: T10 Torx, M3.5 Thread - 62270244 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/6227024-24.jpg)