Allied 739-IP9-1 Cap Screw TP9 Torx Plus Indexable

Product Description

The ALLIED MACHINE AND ENGINEERING 739-IP9-1 is a cap screw designed for indexable cutting tools, specifically for use in drilling applications. It features a Torx Plus drive configuration with a TP9 drive size, requiring an 8IP-9 key driver for installation and removal. This screw is part of the T-A Series and is used to secure indexable inserts to toolholders. It is a precision hardware component handled by machinists and tooling technicians in production and job-shop environments. At 0.1 pounds, it is a lightweight but critical retention fastener that must be properly torqued to maintain insert positioning and cutting accuracy.

This cap screw is intended for use with T-A Series indexable drilling toolholders. It is compatible with hardware designated for indexable insert retention in metal-cutting drilling operations, including both production machining and maintenance tooling setups. The Torx Plus drive geometry reduces cam-out risk during tightening, which is important in high-cycle tooling environments where screws are replaced frequently alongside inserts. Industry standard number 739-IP9-1 identifies this fastener across tooling catalogs.

Key Features

• TP9 Torx Plus drive size reduces cam-out during insert changes
• Requires 8IP-9 key driver for proper installation
• T-A Series designation ensures dimensional consistency with compatible toolholders
• Designed for indexable drilling toolholder hardware compatibility
• Industry standard number 739-IP9-1 for cross-reference identification

Compatibility

Compatible with T-A Series indexable drilling toolholders requiring a TP9 Torx Plus drive cap screw. Hardware compatibility is designated for toolholder insert retention applications per industry standard number 739-IP9-1.

Installation Notes

Installation and removal should be performed by a machinist or qualified tooling technician using the specified 8IP-9 key driver. Always power down and lock out the machine spindle before servicing indexable tooling. Do not substitute a standard Torx driver for the Torx Plus drive, as this can damage the screw head and compromise insert clamping. Replace cap screws at recommended intervals alongside insert changes to maintain consistent clamping force.