| Issue | #40 |
| Published | September-October 1962 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Robert Kanigher |
| Notes | 4th Metal Men |
| Characters | Dr. Will Magnus; Iron; Mercury; Platinum; Tin; Gold; Lead |
| Genre | superhero |
| Pencils | Ross Andru |
| Inks | Mike Esposito |
| Notes | 4th Metal Men |
| Reprinted | in Metal Men Archives, The (DC, 2006 series) #1 |
| Characters | Dr. Will Magnus; Platinum; Gold; Mercury; Lead; Iron; Tin; Chemo; Col. Henry Caspar |
| Synopsis | The Metal Men battle Chemo after he turns Doc Magnus into a radioactive giant. |
| Genre | superhero |
| Script | Robert Kanigher |
| Pencils | Ross Andru |
| Inks | Mike Esposito |
| Notes | continued in Metal Men #1; Doc Magnus is repeatedly referred to as Doc Evans. |
| Reprinted | in Best of DC, The (DC, 1979 series) #34; in Metal Men Archives, The (DC, 2006 series) #1 |