54mm M16 Pull Stud SK40 ISO 7388-3 Form AF Without Bore, O-Ring Sealed - TECWERK

Take advantage of the ISO 7388-3 Form AF specification and SK40 compatibility for reliable clamping and reduced setup time; the M16 thread and O‑ring sealing further protect the spindle interface. Order the pull stud directly via Metav Werkzeuge or ask our consultants if needed.

TECWERK Pull stud ISO 7388-3 Form AF for SK40, M16 thread, O‑ring sealed

The TECWERK Pull stud ISO 7388-3 Form AF is a retention knob for SK40 toolholders, engineered to ensure secure clamping in CNC machining centres and milling spindles.

• ISO 7388-3 Form AF standard
• SK40 taper interface
• M16 thread with O‑ring seal

Proven standard for predictable clamping performance

The ISO 7388-3 specification guarantees interchangeability and predictable mechanics when pairing toolholders and spindle clamping systems. As a precision pull stud, this component converts axial retention forces into a reliable grip, reducing the risk of tool slip under load. Conformance to the standard simplifies procurement and maintenance planning in production environments, since replacement parts follow a recognised dimensional and functional pattern rather than bespoke tolerances.

Sealed design reduces contamination and downtime

The sealed configuration with an O‑ring and the version supplied without a hole prevents coolant and chip ingress at the clamping interface. This protective measure contributes to longer service intervals and lowers the likelihood of spindle contamination, which in turn helps preserve spindle bearings and drawbar integrity. The retention component’s compact geometry (notably the 54 mm overall length and 26 mm collar length) keeps the mass low while maintaining the mechanical leverage required for consistent retention.

Compact dimensions and clear compatibility cut setup time

Key dimensions such as d1: 19 mm, d2: 14 mm and d3: 17 mm together with the M16 thread and SK40 taper make this retention knob suitable for standardised toolholding systems. Compatibility with common SK40 holders allows workshops to streamline tooling inventories and reduces the time spent checking fits during changeovers. The engineered form AF contour ensures axial engagement is repeatable, supporting consistent concentricity and improved process reliability.

For secure clamping with the TECWERK pull stud and fast technical assistance, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for advice and supply from Emmerich.

Product information

• SKU: 2000832710NW
• Standard: ISO 7388-3 Form AF (DIN 69872 Form B)
• Thread: M16
• Shank: SK40
• Manufacturer: TECWERK
• Product type: Pull stud

Facts

• L1: 54 mm
• L2: 26 mm
• d1: 19 mm
• d2: 14 mm
• d3: 17 mm

Special features

• O‑ring sealed
• without hole
• Form AF

FAQ

Is this pull stud suitable for standard SK40 toolholders? Yes. The TECWERK pull stud ISO 7388-3 Form AF is designed for use with SK40 taper toolholders and follows the ISO 7388-3 dimensional system, ensuring compatibility with standard clamping systems.

What thread does the retention knob use and how does sealing work? The retention knob uses an M16 thread and is supplied O‑ring sealed, which prevents coolant ingress and helps maintain drawbar and spindle cleanliness for the TECWERK pull stud SKU 2000832710NW.

Which dimensions are relevant for installation clearance? Key installation dimensions include an overall length of 54 mm, collar length 26 mm, and diameters d1 19 mm, d2 14 mm, d3 17 mm; these figures define the seating and axial engagement of the retention knob.

Does the product conform to recognised standards? Yes. The retention knob conforms to ISO 7388-3 Form AF (DIN 69872 Form B), providing standardised geometry for interchangeability across compliant toolholding systems.

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