Seco 00040016 Differential Screw 10-32 Indexable Turning

Product Description

The SECO 00040016 is a differential screw designed for indexable cutting tools used in turning applications. Differential screws use opposing thread directions on each end to generate a clamping force that locks the insert securely in place. This particular screw features a 10-32 thread size with a right-hand thread length of 0.31 inches and a left-hand thread length of 0.31 inches, for an overall length of 0.59 inches. It is compatible with CL-20 clamps. Licensed machinists and CNC lathe technicians install this component as part of routine insert indexing and toolholder maintenance.

This differential screw is used in turning toolholders that accept indexable inserts secured by a clamp-style clamping system. It is suited for production turning environments where inserts are indexed or replaced at regular intervals. The screw is sold individually per package, with a minimum order quantity of 10 units, making it practical for shops that maintain a working stock of hardware for toolholder servicing.

Key Features

• Dual opposing threads generate clamping force to secure indexable inserts in turning toolholders
• 10-32 thread size for precise fitment in compatible clamp-style toolholders
• Overall length of 0.59 inches with 0.31-inch right-hand and 0.31-inch left-hand thread lengths
• Compatible with CL-20 clamp hardware
• Industry standard number 40016 for cross-reference identification

Compatibility

Designed for use with CL-20 clamp hardware in indexable turning toolholders. Industry standard number 40016 may be used for cross-reference with equivalent clamp screws across compatible toolholder systems.

Installation Notes

Installation is performed by machinists or CNC toolroom technicians during insert indexing or toolholder rebuilds. Ensure the machine is powered down and the spindle is secured before servicing any toolholder hardware. Use the correct driver to avoid stripping the differential thread engagement. Do not overtighten, as differential screws rely on thread geometry rather than brute torque to generate clamping force.