Sandvik Coromant 5758978 Indexable Insert Clamping Screw

Product Description

The SANDVIK COROMANT 5758978 is a Torx Plus drive clamping screw designed to secure indexable inserts in compatible cutting tool holders. These screws are a standard consumable in CNC machining and metal-cutting operations, used to lock carbide or cermet inserts firmly in place during turning, milling, and boring operations. The Torx Plus drive interface provides better torque transfer and reduced cam-out compared to standard hex drives, which helps prevent screw head damage during frequent insert changes. Weighing 0.25 pounds per package, this screw ships in a package quantity of one with a minimum order quantity of ten units.

This screw is suited for use in production machining environments where indexable tooling is regularly serviced. Machinists, toolroom technicians, and CNC operators who change inserts on a routine basis keep these screws on hand as replacement hardware. Insert clamping screws are wear and damage items that should be replaced whenever thread damage, head deformation, or improper seating is observed. The Torx Plus interface aligns with the drive style used across many SANDVIK COROMANT indexable toolholder designs.

Key Features

• Torx Plus drive type for improved torque transfer and reduced cam-out risk
• Designed for indexable insert clamping in turning, milling, and boring holders
• Industry Standard Number 339-831 for cross-reference sourcing
• Replacement hardware suitable for high-frequency insert change workflows
• UNSPSC Code 31161500 for procurement and cataloging systems

Compatibility

Designed as an OEM-style replacement clamping screw for SANDVIK COROMANT indexable cutting tool holders requiring a Torx Plus drive screw. Confirm the thread specification and screw length against your specific toolholder documentation before ordering.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians during indexable insert changes. Always power down and lock out the machine spindle before removing or installing insert clamping screws. Use a calibrated Torx Plus key or bit driver rated for the appropriate screw size to avoid head damage. Replace any screw showing thread wear, head rounding, or cracking rather than reusing it.