4/8 fields identicalno sizes in common
ASME B18.3 vs DIN 912
ASME B18.3 and DIN 912 have no size designation in common: ASME B18.3 covers 4-40 to 3/4-10 and DIN 912 covers M2 – M24, and no size appears in both tables, so there is nothing to compare dimension by dimension. Substituting one for the other starts from matching nominal diameters, which the equivalence claim does not do for you.
Specification comparison
| Specification | ASME B18.3 | DIN 912 | Verdict |
|---|---|---|---|
| Standard body | ASME | DIN | differs |
| Title | Socket Head Cap Screw — Inch Series | Hexagon Socket Head Cap Screw | differs |
| Fastener type | Socket head cap screw | Socket head cap screw | identical |
| Head type | Socket head (cylindrical) | Socket head (cylindrical) | identical |
| Drive | Hexagon socket | Hexagon socket | identical |
| Size range | 4-40 to 3/4-10 | M2 – M24 | differs |
| Number of listed sizes | 10 | 15 | differs |
| Thread standard length defined | Yes | Yes | identical |
Dimension differences by sizecomputed from the tables in this database
| Size | Difference in this database |
|---|---|
| 4-40 | size not listed in the other standard |
| 6-32 | size not listed in the other standard |
| 8-32 | size not listed in the other standard |
| 10-24 | size not listed in the other standard |
| 1/4-20 | size not listed in the other standard |
| 5/16-18 | size not listed in the other standard |
| 3/8-16 | size not listed in the other standard |
| 1/2-13 | size not listed in the other standard |
| 5/8-11 | size not listed in the other standard |
| 3/4-10 | size not listed in the other standard |
Rows shaded amber differ between the two standards. Substitution should be checked against the affected sizes rather than assumed from the equivalence alone.