Thread mills drastically reduce the occurrences of scrap when compared to taps, which makes them desirable when manufacturing large and/or costly components. AccuThread™ 856 is a premium thread milling product backed by Allied’s experienced technical staff. AccuThread™ 856 provides quality threads when compared to other thread making processes.
Advantages
- Provides a 25-50% increase in tool life over the competition
- Increased strength and rigidity when cutting forces are applied
- Standard cutting lengths accommodate multiple applications without the need for an engineered special
- Re-sharpening service available
Features
- Allied's proprietary AM210® coating
- Thicker core
- Helical flutes
- Wide range of forms and pitches
- Imperial and metric shanks
- Online programming
Recommended Materials
Steel
High Tem Alloy
Sainless Steel
Hardened Steel
Cast Iron 
Non-ferrous MaterialsRecommended Industries
Aerospace
Agriculture
Automotive
Renewable Energy/ Energy
Firearms
General Production
Oil and Gas
Marine
MedicalProduct Specifications
| Product Type | Solid carbide thread mill |
| Thread Form | NPT, NPTF, NPS, NPSF, BSPP, BSPT, BSW, UN, ISO |
| Shank Options | Imperial, Metric |
| Coating | AM210® |
| Substrate Options | Carbide |
| Coolant | Non-coolant |
Product Nomenclature
AccuThread 856 Solid Carbide Thread Mills
| TM |
|---|
| 1 |
| U |
|---|
| 2 |
| K |
|---|
| 3 |
| 0250 |
|---|
| 4 |
| - |
| 20 |
|---|
| 5 |
| M |
|---|
| 6 |
| 1. Thread Mill |
|---|
|
TM = Standard HDTM = Heavy duty |
| 2. Thread Class |
|---|
|
U = UN N = NPT, NPTF B = BSPP, BSPT, BSW M = ISO A = AccuPort® specifc |
| 3. Coating |
|---|
|
K = AM210® U = Uncoated |
| 4. Min Thread Diameter |
|---|
|
0250 = 1/4 (English) 0008 = #8 (Number Drill) 0450 = M4.5 (ISO) |
| 5. Thread Pitch |
|---|
|
20 = UN 20 TPI 075 = ISO 0.75 NPT = All pipe threads will show thread form |
| 6. Shank |
|---|
|
Blank = Imperial M = Metric |
Reference Key
| Symbol | Atribute |
|---|---|
|
D1 D2 L1 L6 |
Maximum cutter diameter Shank diameter Overall length Length of cut |
Recommended Cutting Data
AccuThread™ 856 Solid Carbide
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