Iscar 7003471 Cap Screw T8 Torx M2.5 Helimill

Product Description

The ISCAR 7003471 is a countersunk-head cap screw designed to secure indexable inserts in milling toolholders. It uses a T8 Torx drive and an M2.5 thread, providing positive engagement and resistance to cam-out during installation and removal. At 6.50 mm overall length, this screw is sized for APK-style toolholders in the Helimill series. It is installed by machinists and toolroom technicians as a routine consumable when replacing worn or chipped inserts. The compatible key driver is the T-8/53. This screw ships individually but carries a minimum order quantity of 5 units.

This cap screw is used in milling operations where Helimill series APK toolholders are in service. It is appropriate for high-production environments where frequent insert changes are performed and reliable clamping integrity is required. Replacement screws should be kept on hand to avoid downtime during insert indexing. Compatible inserts include the APCT 1003PDR-HM, APKT 1003TR-RM, APKT 1003..R, APKT 1003PDR-HM, and APKT 1003PDTR-76 series.

Key Features

• T8 Torx countersunk head reduces cam-out risk during insert changes
• M2.5 thread sized for APK-style Helimill toolholders
• 6.50 mm overall length for proper seating depth in compatible toolholders
• SR style screw compatible with APCT and APKT insert families
• Requires T-8/53 key driver for proper installation torque application
• Sold individually; minimum order quantity is 5 units

Compatibility

Designed for use with APK toolholders in the ISCAR Helimill series. Compatible inserts include the APCT 1003PDR-HM, APKT 1003TR-RM, APKT 1003..R, APKT 1003PDR-HM, and APKT 1003PDTR-76. Requires a T-8/53 key driver.

Installation Notes

Installation and replacement of indexable insert screws should be performed by a qualified machinist or toolroom technician with the correct T-8/53 Torx key driver. Always index or replace inserts with the toolholder removed from the spindle and the machine powered down and locked out per applicable safety procedures. Do not substitute a non-specified driver, as improper engagement can strip the Torx socket or damage the toolholder seat. Inspect the screw thread and toolholder thread pocket for damage before reinstalling.