Kennametal 1020935 T20 Torx Screw Indexable Toolholder

Product Description

The KENNAMETAL 1020935 is a T20 Torx drive clamp screw designed for indexable toolholders in metal-cutting applications. This small-format hardware fastener secures inserts and clamps within compatible toolholder assemblies, maintaining precise insert positioning under cutting loads. It is part of the SSY series and is engineered for use with threading-style indexable tools. Licensed machinists and toolroom technicians typically source this screw as a replacement or spare when servicing existing toolholder setups. At 0.02 pounds, it is a lightweight but critical component for maintaining clamping integrity during turning and threading operations.

This screw fits LSA and LSS style toolholders and is compatible with clamp and shim hardware configurations. It is used in threading-style indexable tool setups, typically found in CNC turning centers and manual lathes in production and job-shop environments. The T20 Torx drive provides positive engagement and reduces the risk of cam-out during tightening compared to hex socket drives. Compatible with CKC4 clamps and LT22EL and LT22ER complete inserts, this screw is suited for both OEM replacement and routine maintenance stocking.

Key Features

• T20 Torx drive for positive engagement and reduced cam-out risk during tightening
• Compatible with LSA and LSS toolholder styles
• Fits CKC4 clamp and clamp or shim hardware configurations
• Designed for SSY series threading-style indexable toolholders
• Compatible with LT22EL and LT22ER complete inserts
• Lightweight at 0.02 pounds — suitable for stocking in multiples

Compatibility

Compatible with LSA and LSS toolholder styles. Fits CKC4 clamps and clamp or shim hardware. Designed for use with LT22EL and LT22ER complete inserts in SSY series threading-style indexable toolholders.

Installation Notes

Installation is performed by machining technicians or toolroom personnel during insert indexing or toolholder servicing. Power down and de-energize the machine spindle before servicing any toolholder assembly. Use a calibrated T20 Torx driver or bit to seat the screw properly — do not use damaged or worn bits that may strip the drive recess. Follow the toolholder manufacturer's service documentation for proper seating sequence when replacing clamp hardware.