Iscar 7003740 Set Screw M4 Hex Socket Indexable Turning

Product Description

The ISCAR 7003740 is a set screw designed for securing indexable inserts in turning toolholders. It features a hex socket drive with an M4 thread and a 2 mm socket hex size, providing reliable clamping force for indexable insert seating. The screw belongs to the Isoturn series and is compatible with PDAC-style toolholders. At 6.60 mm overall length and a package weight of approximately 0.002 pounds, this small-format fastener plays a critical role in maintaining insert position and cutting accuracy during turning operations. Installation requires the HW 2.0/5 key driver. This screw is sold individually but must be ordered in multiples of 5.

This set screw is intended for use in indexable turning applications where PDAC toolholder compatibility is required. It is engineered to work with a range of insert geometries including DCET-WF, DCGT-AS, DCMT-PF, DCMT/DCGT, and DCMT/DCGT-SM inserts with a 0.25 inch inscribed circle. Typical installation scenarios include lathe and turning center setups where consistent insert clamping and quick changeout are priorities. It is suited for both production and maintenance tooling environments where Isoturn series components are in service.

Key Features

• M4 thread with hex socket drive for secure, tool-assisted tightening
• 2 mm socket hex size compatible with HW 2.0/5 key driver
• 6.60 mm overall length optimized for PDAC toolholder geometry
• Isoturn series component for consistent fit within the ISCAR Isoturn system
• Compatible with multiple DCMT and DCGT insert styles with 0.25 inch inscribed circle
• SR style screw designed for indexable insert retention in turning operations

Compatibility

Compatible with PDAC-style toolholders and the following insert types: DCET-WF, DCGT-AS, DCMT-PF, DCMT/DCGT, and DCMT/DCGT-SM with a 0.25 inch inscribed circle. Requires HW 2.0/5 key driver for installation. Part of the ISCAR Isoturn series.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and all energy sources are locked out before servicing toolholders or replacing insert hardware. Use only the specified HW 2.0/5 hex key driver to avoid fastener damage. Do not overtighten, as set screws of this size are torque-sensitive and may strip if excessive force is applied without a calibrated driver.