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Application

VÖLKEL Machine Nut Tap FZ HSS-G – Tr 10 × 2 (Right-hand Thread)

The VÖLKEL Machine Nut Tap FZ HSS-G is designed for producing precise metric trapezoidal threads Tr 10 × 2 according to DIN 103. With its Form FZ geometry – featuring a long thread section, short lead, and back clearance – this tap allows full thread cutting in one pass, making it ideal for through holes and production environments. Made of precision-ground HSS-G, it offers long tool life, consistent accuracy, and reliable performance when machining unalloyed and low-alloy steels or other non-abrasive materials up to 700 N/mm².

A trapezoidal thread (Tr) has a trapezoid-shaped profile that ensures stable flank support and smooth motion. It is typically used in drive and feed mechanisms such as lead screws, vises, or lifting equipment where high load capacity and precise linear motion are essential. The 7H tolerance guarantees a consistent fit with minimal play and excellent repeatability in moving assemblies.

Application

  • For general use and workshop applications
  • Suitable for non-abrasive materials up to 700 N/mm²
  • For unalloyed and low-alloy steels
  • Thread depth up to 1 × D
  • Ideal for through holes and motion threads

Step-by-Step Guide

  1. Prepare the core hole: Drill to the correct diameter for Tr 10 × 2. Clean and deburr.
  2. Secure and align: Fix the workpiece and align the tap axially in the holder or collet.
  3. Lubricate properly: Apply cutting oil or coolant to reduce friction and improve chip flow.
  4. Cut the thread: Operate at moderate speed and constant feed. The FZ geometry ensures quick cutting and chip evacuation.
  5. Finish and inspect: Clean the thread, check the quality and tolerance (7H), and deburr lightly if necessary.

Technical Data

Thread typeMetric ISO trapezoidal thread DIN 103
FormFZ (long thread, short lead, back clearance)
MaterialHSS-G
Tolerance7H
Nominal sizeTr 10 × 2
Overall length (L1)110 mm
Thread length (L2)63 mm
Shank diameter (D2)7 mm
Square drive5.5 mm
DirectionRight-hand thread
EAN4022835791089
Article number79108

FAQ

What is Form FZ?
Form FZ describes a tap geometry with a long cutting section and a short lead, allowing for full thread depth to be reached quickly. This design is ideal for through holes and efficient production.

What is a trapezoidal thread used for?
Trapezoidal threads (Tr) are used in applications requiring linear motion and high axial load, such as lead screws, presses, vises, and actuators.

What materials can I use it on?
Non-alloyed and low-alloy steels, and other machinable, non-abrasive materials up to 700 N/mm² strength.

Why is the tolerance 7H important?
The 7H fit ensures a precise, smooth-running thread with minimal backlash, perfect for motion transmission applications.

Can it be used manually?
Yes, it can be used with a suitable tap wrench, but machine use is recommended for consistent accuracy and tool life.

For further details about trapezoidal thread cutting or related tooling, contact us via the contact form.

Additional information
Type of thread metric ISO- trapezoidal thread
Standard DIN
Material HSS-G
Tolerance 7H
Size Tr 10 x 2
Overall length (L1) 110 mm
Thread length (L2) 63 mm
Core hole diameter (D1) 8.2 mm
Shank diameter (D2) 7.0 mm
Drive connector 5.5 mm
EAN 4022835791089
Item number 79108
Type of flute straight fluted
Application for through holes
Thread standard DIN 103

VÖLKEL Machine Nut Tap FZ HSS-G – Tr 10 × 2 (Right-hand Thread)

The VÖLKEL Machine Nut Tap FZ HSS-G is designed for producing precise metric trapezoidal threads Tr 10 × 2 according to DIN 103. With its Form FZ geometry – featuring a long thread section, short lead, and back clearance – this tap allows full thread cutting in one pass, making it ideal for through holes and production environments. Made of precision-ground HSS-G, it offers long tool life, consistent accuracy, and reliable performance when machining unalloyed and low-alloy steels or other non-abrasive materials up to 700 N/mm².

A trapezoidal thread (Tr) has a trapezoid-shaped profile that ensures stable flank support and smooth motion. It is typically used in drive and feed mechanisms such as lead screws, vises, or lifting equipment where high load capacity and precise linear motion are essential. The 7H tolerance guarantees a consistent fit with minimal play and excellent repeatability in moving assemblies.

Application

  • For general use and workshop applications
  • Suitable for non-abrasive materials up to 700 N/mm²
  • For unalloyed and low-alloy steels
  • Thread depth up to 1 × D
  • Ideal for through holes and motion threads

Step-by-Step Guide

  1. Prepare the core hole: Drill to the correct diameter for Tr 10 × 2. Clean and deburr.
  2. Secure and align: Fix the workpiece and align the tap axially in the holder or collet.
  3. Lubricate properly: Apply cutting oil or coolant to reduce friction and improve chip flow.
  4. Cut the thread: Operate at moderate speed and constant feed. The FZ geometry ensures quick cutting and chip evacuation.
  5. Finish and inspect: Clean the thread, check the quality and tolerance (7H), and deburr lightly if necessary.

Technical Data

Thread typeMetric ISO trapezoidal thread DIN 103
FormFZ (long thread, short lead, back clearance)
MaterialHSS-G
Tolerance7H
Nominal sizeTr 10 × 2
Overall length (L1)110 mm
Thread length (L2)63 mm
Shank diameter (D2)7 mm
Square drive5.5 mm
DirectionRight-hand thread
EAN4022835791089
Article number79108

FAQ

What is Form FZ?
Form FZ describes a tap geometry with a long cutting section and a short lead, allowing for full thread depth to be reached quickly. This design is ideal for through holes and efficient production.

What is a trapezoidal thread used for?
Trapezoidal threads (Tr) are used in applications requiring linear motion and high axial load, such as lead screws, presses, vises, and actuators.

What materials can I use it on?
Non-alloyed and low-alloy steels, and other machinable, non-abrasive materials up to 700 N/mm² strength.

Why is the tolerance 7H important?
The 7H fit ensures a precise, smooth-running thread with minimal backlash, perfect for motion transmission applications.

Can it be used manually?
Yes, it can be used with a suitable tap wrench, but machine use is recommended for consistent accuracy and tool life.

For further details about trapezoidal thread cutting or related tooling, contact us via the contact form.

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