![measuring - Does the outer diameter of 4.78 indicate an M4 or an M5 bolt? - Home Improvement Stack Exchange measuring - Does the outer diameter of 4.78 indicate an M4 or an M5 bolt? - Home Improvement Stack Exchange](https://i.stack.imgur.com/04pP0.png)
measuring - Does the outer diameter of 4.78 indicate an M4 or an M5 bolt? - Home Improvement Stack Exchange
![Round Head Pan Head Trox M4 M5 M6 Small Button Black Zinc Color Zinc Machine Screw - China Bolt Nut, Stainless Steel Nut | Made-in-China.com Round Head Pan Head Trox M4 M5 M6 Small Button Black Zinc Color Zinc Machine Screw - China Bolt Nut, Stainless Steel Nut | Made-in-China.com](https://image.made-in-china.com/44f3j00zCGkpwcUHEqj/Round-Head-Pan-Head-Trox-M4-M5-M6-Small-Button-Black-Zinc-Color-Zinc-Machine-Screw.webp)
Round Head Pan Head Trox M4 M5 M6 Small Button Black Zinc Color Zinc Machine Screw - China Bolt Nut, Stainless Steel Nut | Made-in-China.com
Diall M4 Cruciform Philips Pan head Zinc-plated Carbon steel Machine screw & nut (Dia)4mm (L)30mm, Pack of 20
![Counter Sunk CSK M4 (4mm) x 20mm Steel MS Phillips Plus Screw SKU-15199 | Ronical Technologies LLP - Wide range of embedded electronics industrial engineering products like device programmers and automation products Counter Sunk CSK M4 (4mm) x 20mm Steel MS Phillips Plus Screw SKU-15199 | Ronical Technologies LLP - Wide range of embedded electronics industrial engineering products like device programmers and automation products](https://www.ronical.com/x/ron/s/5.jpg)
Counter Sunk CSK M4 (4mm) x 20mm Steel MS Phillips Plus Screw SKU-15199 | Ronical Technologies LLP - Wide range of embedded electronics industrial engineering products like device programmers and automation products
![measuring - Does the outer diameter of 4.78 indicate an M4 or an M5 bolt? - Home Improvement Stack Exchange measuring - Does the outer diameter of 4.78 indicate an M4 or an M5 bolt? - Home Improvement Stack Exchange](https://i.stack.imgur.com/Lc0Pbl.jpg)
measuring - Does the outer diameter of 4.78 indicate an M4 or an M5 bolt? - Home Improvement Stack Exchange
M4 x 8mm Socket Countersunk Screws Hex Allen Screw Bolts 10.9 High Tensile DIN 7991 Pack of 10 | DIY at B&Q
![Metric 8mm Broached-Hex Socket Head Shoulder Screws by UNICORP Metric/Standard-Stock/Custom, Slotted/Hex Socket Head-13 finishes/Stainless Steel/ Brass/ Carbon Steel- Official Site Metric 8mm Broached-Hex Socket Head Shoulder Screws by UNICORP Metric/Standard-Stock/Custom, Slotted/Hex Socket Head-13 finishes/Stainless Steel/ Brass/ Carbon Steel- Official Site](https://www.unicorpinc.com/images/Unicorp%20broached-shoulderscrews.jpg)