Nipples are made on CNC machinery. Material used is C360 brass and 303 stainless steel rod.
| MTP Thread | Hole Diameter | Length |
| 1/8-56 close | 0.052" | 1/4" |
| 1/8-56 long | 0.052" | 1/2" |
| 5/32-48 close | 0.078" | 9/32" |
| 5/32-48 long | 0.078" | 9/16" |
| 3/16-40 close | 0.096" | 7/16" |
| 3/16-40 long | 0.096" | 3/8" |
| 1/4-40 close | 0.147" | 3/8" |
| 1/4-40 long | 0.147" | 3/4" |
| 5/16-27 close | 0.191" | 7/16" |
| 5/16-27 long | 0.191" | 7/8" |