Hexagon Die Nut DIN 382 HSS - UNx8 2.1/2 x 8
€428.00
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VÖLKEL Hexagon Die Nut DIN 382 HSS-G – UN 2-1/2 × 8
This robust hexagon die nut to DIN 382 is your go-to tool for quick, accurate external thread repair in the Unified National system. The designation UN 2-1/2 × 8 means a nominal outside diameter of 2.5 inches with 8 threads per inch (ANSI B1.1). Made from HSS-G, it delivers clean cutting performance and dependable accuracy—especially useful in awkward or hard-to-reach places where a ring or open-ended spanner is the most practical solution.
Application & Advantages
- For cleaning and repairing damaged external threads in the UN system (ANSI B1.1)
- Ideal for awkward, tight, or obstructed locations—operates with ring/open-ended spanners
- HSS-G for sharp cutting action and dimensional stability
- Controlled, reliable rethreading without changing to a round die holder
- Fast maintenance and service operations
UNx8 explained: “× 8” specifies the pitch as 8 threads per inch (TPI). For UN 2-1/2 × 8, ensure matching components and gauges are also 8 TPI for correct engagement.
Quick Start Guide
- Prepare: Clean the thread area and lightly chamfer damaged starts. Secure the workpiece.
- Lubricate: Apply a generous cutting oil. Reapply during the operation.
- Align: Place the die nut squarely on the thread start and engage by hand.
- Rethread: Turn steadily with a suitable spanner in the cutting direction. Avoid rocking; maintain lubrication.
- Verify: Remove chips, then check with a mating nut or a thread gauge; repeat with a light finishing pass if required.
Technical Specifications
Thread system | Unified National (ANSI B1.1) |
Standard | DIN 382 |
Material | HSS-G (ground) |
Nominal size | UN 2-1/2 × 8 (8 TPI) |
Wrench size | 115 × 22 mm |
EAN | 4022835241812 |
Article No. | 24181 |
FAQ
Does it fit UNC/UNF?
This model is for UN 2-1/2 × 8 (8 TPI). Always confirm thread series and pitch before use.
Which wrench should I use?
Use a ring or open-ended spanner that fits securely. Keep the tool square to the axis.
Which cutting fluid is recommended?
Use a high-performance cutting oil for steel to reduce friction and improve finish.
How can I avoid cross-threading?
Start by hand, ensure the first turns are square and smooth, and keep the tool lubricated throughout.
Machine use?
Primarily intended for hand operation. If machine-assisted, use very low speed and abundant lubrication.
Need help with UN thread sizes or choosing the right tool? Contact us via the contact form.
Type of thread | UNx8 |
---|---|
Standard | DIN 382 |
Material | HSS |
Tolerance | 2A |
Size | UNx8 2.1/2 x 8 |
Width across flat | 115 mm |
EAN | 4022835241812 |
Item number | 24181 |
Thread standard | ANSI B1.1 |
Rec. Bolt diameter | 63.25 mm |
VÖLKEL Hexagon Die Nut DIN 382 HSS-G – UN 2-1/2 × 8
This robust hexagon die nut to DIN 382 is your go-to tool for quick, accurate external thread repair in the Unified National system. The designation UN 2-1/2 × 8 means a nominal outside diameter of 2.5 inches with 8 threads per inch (ANSI B1.1). Made from HSS-G, it delivers clean cutting performance and dependable accuracy—especially useful in awkward or hard-to-reach places where a ring or open-ended spanner is the most practical solution.
Application & Advantages
- For cleaning and repairing damaged external threads in the UN system (ANSI B1.1)
- Ideal for awkward, tight, or obstructed locations—operates with ring/open-ended spanners
- HSS-G for sharp cutting action and dimensional stability
- Controlled, reliable rethreading without changing to a round die holder
- Fast maintenance and service operations
UNx8 explained: “× 8” specifies the pitch as 8 threads per inch (TPI). For UN 2-1/2 × 8, ensure matching components and gauges are also 8 TPI for correct engagement.
Quick Start Guide
- Prepare: Clean the thread area and lightly chamfer damaged starts. Secure the workpiece.
- Lubricate: Apply a generous cutting oil. Reapply during the operation.
- Align: Place the die nut squarely on the thread start and engage by hand.
- Rethread: Turn steadily with a suitable spanner in the cutting direction. Avoid rocking; maintain lubrication.
- Verify: Remove chips, then check with a mating nut or a thread gauge; repeat with a light finishing pass if required.
Technical Specifications
Thread system | Unified National (ANSI B1.1) |
Standard | DIN 382 |
Material | HSS-G (ground) |
Nominal size | UN 2-1/2 × 8 (8 TPI) |
Wrench size | 115 × 22 mm |
EAN | 4022835241812 |
Article No. | 24181 |
FAQ
Does it fit UNC/UNF?
This model is for UN 2-1/2 × 8 (8 TPI). Always confirm thread series and pitch before use.
Which wrench should I use?
Use a ring or open-ended spanner that fits securely. Keep the tool square to the axis.
Which cutting fluid is recommended?
Use a high-performance cutting oil for steel to reduce friction and improve finish.
How can I avoid cross-threading?
Start by hand, ensure the first turns are square and smooth, and keep the tool lubricated throughout.
Machine use?
Primarily intended for hand operation. If machine-assisted, use very low speed and abundant lubrication.
Need help with UN thread sizes or choosing the right tool? Contact us via the contact form.