54mm SK40 Pull Stud With Through Hole, ISO 7388-3 Form AD, M16 Thread - TECWERK

Take advantage of a hardened, ISO‑compliant design and precise thread grinding for secure retention and repeatable clamping; order the pull stud directly via Metav Werkzeuge or consult the advisors for batch availability.

TECWERK pull stud ISO 7388-3 Form AD for SK40, M16 thread, with bore

The TECWERK pull stud is a retention screw designed for steep‑taper toolholders to ensure reliable clamping in SK40 spindles and machining centres.

• Hardened to 58 ± HRC for long life
• M16 thread, ground to DIN tolerances
• ISO 7388-3 Form AD compatibility
• Parallel ground, blued finish, with bore

Precision retention for consistent machining results

The retention screw is engineered for standardised clamping: compliance with ISO 7388-3 and DIN 69872 Form A ensures interchangeability across machines and toolholders that use the steep taper standard. The combination of an SK40 shank and an M16 thread gives secure mechanical engagement with drawbar systems, reducing the risk of tool loosening during high‑force operations. Reliability in clamping translates into fewer interruptions on the shop floor and better repeatability of critical machining tasks.

Robust hardening and finish reduce downtime

Heat treatment to 58 ± HRC provides high wear resistance for continuous use in production environments, while the ground thread and parallel ground flange guarantee precise seating and even load distribution. The blued finish improves surface protection against corrosion in workshop atmospheres without affecting dimensional accuracy. Together these characteristics extend service intervals and support stable tool retention, which helps to maintain spindle life and minimise unexpected tool changes.

Practical fit and shop‑floor compatibility

Dimensions are tailored for consistent integration: overall and shoulder lengths and diameters are specified for precise contact with the spindle taper and clamping mechanism, and the integrated bore facilitates secure engagement and removal where required by the toolholder design. The form AD geometry suits a wide range of SK40 steep‑taper holders used in milling and drilling centres. Supplied as a single item, the component is a suitable replacement part to restore correct clamping performance and maintain production quality. Metav’s quality‑filtered supply chain in Emmerich ensures traceable sourcing and reliable availability for industrial and workshop customers.

Contact Metav Werkzeuge for availability of TECWERK pull studs, technical clarification and order support at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 2000832700NW
• Label: Anzugsbolzen ISO 7388-3 Form AD SK40 m.Bohr.TECWERK
• Standard: DIN 69872 Form A / ISO 7388-3
• Thread: M16
• Shank: SK40
• Manufacturer: TECWERK
• Product type: Pull stud

Facts

• Hardness: 58 ± HRC
• d1: 19 mm
• d2: 14 mm
• d3: 17 mm
• d4: 7.0 mm
• L1: 54 mm
• L2: 26 mm

Special features

• For tools with steep taper according to DIN 69871
• In‑use hardened 58 ± HRC; Eht 0.5–0.8
• Thread soft‑ground to DIN
• Parallel ground and blued finish
• ISO 7388-3 Form AD
• Supplied with bore

FAQ

What thread size does this retention screw use?
The retention screw uses an M16 thread as specified for the TECWERK pull stud (SKU 2000832700NW), ground to meet DIN tolerances.

Is this pull stud compatible with SK40 toolholders?
Yes. The component is made for SK40 steep‑taper holders and conforms to ISO 7388-3 Form AD / DIN 69872 Form A for compatibility across standard toolholders and spindles.

How does the hardening rating affect service life?
A hardness of 58 ± HRC increases wear resistance under cyclic clamping loads, so the stud sustains repeated use with reduced deformation and longer service intervals.

What is the purpose of the bore in this design?
The integrated bore is part of the geometry that supports secure engagement and removal in compatible clamping systems; it is supplied as specified for Form AD variants.

Are the dimensions suitable for precision reconditioning of holders?
Yes. The specified diameters and lengths (for example L1: 54 mm, L2: 26 mm) support precise seating in SK40 holders and are intended to restore correct clamping geometry.

Manufacturer / Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund