Tough As Nails Heavy Duty 12.9 Grade Carbon Steel T15 Torx Drive Socket Set Screws With Secure Grip M3.5 Metric Pitch 0.6 Black Oxide Coating For Precision CNC Lathes And Carbide Tool Holders 3 Pack

M3.5 Hex Socket Set Screws With T15 Drive Black Oxide Finish
✔️ 12.9 grade carbon steel M3.5 socket head screws pack of 3

These heavy duty fasteners are engineered to securely lock spindle chucks and cutting bits onto rotating shafts. Shop technicians frequently mount them onto CNC lathe tool holders to prevent slippage during heavy machining cuts. You receive three identical black oxide capped units that resist corrosion while delivering consistent clamp force across demanding production environments.

✅ 12.9 grade carbon steel body withstands maximum clamping pressure
✅ Thread span covers three point five millimeters or point one four inches
✅ Overall reach extends five millimeters or point two zero inches inward
✅ Drive cavity fits T fifteen star wrench heads for solid torque transfer

💡 What type of locking pin prevents rotating spindles from wobbling during heavy cuts?
Reliable tension relies on precise geometry and hardened metal composition.
- High clamp force stays locked against centrifugal pull forces
- Fine metric threading grabs deeper into threaded bores quickly
- Swap tired hardware fast using standard driver accessories around shop

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