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The SECO 00041723 is a differential screw designed for use with indexable turning toolholders. It features a 5/16-24 thread size and an overall length of 1.0 inches, with a right-hand thread length of 0.5 inches and a left-hand thread length of 0.28 inches. The differential thread design uses two different thread pitches on a single screw to create a precise clamping action, securing the insert firmly during turning operations. This hardware is installed by machinists and toolroom technicians maintaining or configuring indexable tooling assemblies.
This differential screw is used in indexable turning applications where CL-9 style clamp hardware is specified. It is a direct-fit replacement or spare component for toolholders requiring a 5/16-24 thread differential screw to retain the indexable insert clamp. Typical use is in production or job-shop turning setups on CNC or manual lathes. The screw is sold individually, making it suitable for single-piece replacement needs on the shop floor.
Designed for use with CL-9 clamp hardware on indexable turning toolholders requiring a 5/16-24 differential screw. Industry standard number 41723 may be used as a cross-reference when sourcing this component.
Installation is performed by qualified machinists or toolroom technicians. Before replacing the screw, ensure the machine is powered down and the spindle is fully stopped. Use the correct hex key or driver specified for the toolholder system to avoid damaging the differential thread. Do not overtighten, as differential screws rely on precise thread engagement to function correctly.
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