Kennametal 1963865 Cap Screw T8 Torx 3-48 Thread

Product Description

The KENNAMETAL 1963865 is a cap screw designed specifically for indexable tooling applications. It features a T8 Torx drive with an oval head and a 3-48 inch thread size, making it a precision fastener for securing cutting inserts in indexable boring bars. This screw belongs to the Kennametal Q Series and is engineered to the tight tolerances required for reliable insert clamping in metal-cutting operations. Machinists and toolroom technicians working with indexable toolholders use this screw as a direct replacement or service component when original hardware is worn or lost.

This cap screw is used in indexable boring bar setups where a T8 Torx oval-head design is required to seat and clamp cutting inserts securely. It is suited for production machining and toolroom environments where proper insert retention directly affects surface finish, dimensional accuracy, and tool life. The Q Series designation indicates compatibility within the Kennametal Q Series indexable tooling platform.

Key Features

• T8 Torx drive for precise torque application without fastener damage
• Oval head profile designed to seat flush within indexable insert pockets
• 3-48 inch thread size matched to Q Series boring bar insert clamp holes
• Engineered for indexable boring bar insert hardware applications
• Compact and lightweight at 0.01 pounds per piece

Compatibility

Designed for use with Kennametal Q Series indexable boring bars requiring a T8 Torx oval-head cap screw with 3-48 thread size for insert clamping.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the boring bar and associated toolholder are fully removed from the machine spindle and any power source is locked out before servicing insert hardware. Use a calibrated T8 Torx driver or torque wrench to tighten the screw to the toolholder manufacturer specification — do not overtighten, as this can strip the fine 3-48 thread or crack the insert. Inspect the screw threads and insert pocket regularly for wear and replace as needed to maintain clamping integrity.