VOLKEL HSS Round Dies - UNC
VOLKEL HSS Round Dies – UNC
Unified Coarse thread
DIN 223 (DIN EN 22568) HSS
| Nominal Diameter | Ø o / d |
Art.-No. |
| UNC Nr. 1 x 64 | 16 x 5 | 23401 |
| UNC Nr. 2 x 56 | 16 x 5 | 23402 |
| UNC Nr. 3 x 48 | 16 x 5 | 23403 |
| UNC Nr. 4 x 40 | 20 x 5 | 23404 |
| UNC Nr. 5 x 40 | 20 x 5 | 23405 |
| UNC Nr. 6 x 32 | 20 x 7 | 23406 |
| UNC Nr. 8 x 32 | 20 x 7 | 23408 |
| UNC Nr. 10 x 24 | 20 x 7 | 23410 |
| UNC Nr. 12 x 24 | 20 x 7 | 23412 |
| UNC 1/4 x 20 | 20 x 7 | 23414 |
| UNC 5/16 x 18 | 25 x 9 | 23416 |
| UNC 3/8 x 16 | 30 x 11 | 23418 |
| UNC 7/16 x 14 | 30 x 11 | 23420 |
| UNC 1/2 x 13 | 38 x 14 | 23422 |
| UNC 9/16 x 12 | 38 x 14 | 23424 |
| UNC 5/8 x 11 | 45 x 18 | 23426 |
| UNC 3/4 x 10 | 45 x 18 | 23430 |
| UNC 7/8 x 9 | 55 x 22 | 23434 |
| UNC 1″ x 8 | 55 x 22 | 23438 |
| UNC 1.1/8 x 7 | 65 x 25 | 23442 |
| UNC 1.1/4 x 7 | 65 x 25 | 23446 |
| UNC 1.3/8 x 6 | 65 x 25 | 23450 |
| UNC 1.1/2 x 6 | 65 x 25 | 23452 |
| UNC 1.1/2 x 6 | 75 x 30 | 23454 |
| UNC 1.5/8 x 5 | 75 x 30 | 23458 |
| UNC 1.3/4 x 5 | 90 x 36 | 23462 |
| UNC 1.7/8 x 4.1/2 | 90 x 36 | 23466 |
| UNC 2″ x 4.1/2 | 90 x 36 | 23470 |
VOLKEL Thread circular round dies are used for producing external threads. Round dies are round and usually have three or more cutting edges. They are either used for manual use of die holders or clamped into the quill to use in a turning lathe.
The chips are discharged through the plane holes in round dies. VOLKEL Round dies are available slotted or solid, with solid being the most commonly used style. The groove in slotted round dies allows these to be adjusted if worn while solid dies are able to produce more precise pitch of thread. Dies also come in round solid circular form or Hexagon die nut Form.
UNC and UNF are two symbols of Unified Screw Thread Series. UNC and UNF are of Unified Coarse (UNC) and Unified Fine (UNF) thread standards.
UNC threads have a larger thread pitch than UNF threads, which means there is more distance between each thread. This makes UNC threads more suitable for applications where there is a need for higher resistance to stripping and where the material being fastened is relatively thick or soft. On the other hand, UNF threads have a smaller thread pitch, which means there is less distance between each thread. This makes UNF threads more suitable for applications where there is a need for a tighter fit and where the material being fastened is relatively thin or hard.