VOLKEL HSS Round Dies - UNF
VOLKEL HSS Round Dies – UNF
Unified Fine thread
DIN 223 (DIN EN 22568) HSS
| Nominal Diameter | Ø o / d |
Art.-No. |
| UNF Nr. 0 x 80 | 16 x 5 | 23401 |
| UNF Nr. 1 x 72 | 16 x 5 | 23401 |
| UNF Nr. 2 x 64 | 16 x 5 | 23402 |
| UNF Nr. 3 x 56 | 16 x 5 | 23403 |
| UNF Nr. 4 x 48 | 20 x 5 | 23404 |
| UNF Nr. 5 x 44 | 20 x 5 | 23405 |
| UNF Nr. 6 x 40 | 20 x 7 | 23406 |
| UNF Nr. 8 x 36 | 20 x 7 | 23408 |
| UNF Nr. 10 x 32 | 20 x 7 | 23410 |
| UNF Nr. 12 x 28 | 20 x 7 | 23412 |
| UNF 1/4 x 28 | 20 x 7 | 23414 |
| UNF 5/16 x 24 | 25 x 9 | 23416 |
| UNF 3/8 x 24 | 30 x 11 | 23418 |
| UNF 7/16 x 20 | 30 x 11 | 23420 |
| UNF 1/2 x 20 | 38 x 14 | 23422 |
| UNF 9/16 x 18 | 38 x 14 | 23424 |
| UNF 5/8 x 18 | 45 x 18 | 23426 |
| UNF 3/4 x 16 | 45 x 18 | 23430 |
| UNF 7/8 x 14 | 55 x 22 | 23434 |
| UNF 1″ x 12 | 55 x 22 | 23438 |
| UNF 1.1/8 x 12 | 65 x 25 | 23442 |
| UNF 1.1/4 x 12 | 65 x 25 | 23446 |
| UNF 1.3/8 x 12 | 65 x 25 | 23450 |
| UNF 1.1/2 x 12 | 65 x 25 | 23452 |
VOLKEL Thread HSS 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 HSS 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. UNF are Unified Fine (UNF) thread standards.
UNC threads have a larger thread pitch than UNF threads. 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.