Top Shelf Rock Solid Type A Flat Key Pin Set Carbon Steel Shaft Fasteners Multi Size Mechanic Kit 175 Piece Box For Auto Shop And Everyday Rig Maintenance Grey

Mechanic Tool Kit 175 Pin Fasteners For Auto Repair
✔️ Carbon Steel Parallel Pins 3mm To 6mm In Storage Case

You get 175 Type A flat key pins ready to handle daily shaft fastening jobs while staying neat in a tough gray plastic box. These carbon steel pins lock components tight so you spend less time chasing loose parts and more time getting rigs back on the road. The pack covers 3 mm, 4 mm, 5 mm, and 6 mm sizes, which matches most common equipment needs without you sifting through mixed hardware. Just pop the lid, grab the right dimension, and hold the fit solid.

✅ 175-Type A flat key pin set supplies plenty of replacement shaft fasteners
✅ Durable carbon steel construction stands up to repeated loading cycles
✅ Multiple dimensions 3 mm, 4 mm, 5 mm, and 6 mm cover standard shaft gaps
✅ Gray storage container holds parallel pins sorted and ready to carry

💡 Why do machinists pick flat key pins over round shear pins for machine setups?
The flat face gives a larger contact patch that stops rotation dead better than a round pin would.

• Carbon steel alloy holds shape hard even when machines pound against the fastener
• Flat surface mates perfectly with shaft grooves for reliable torque transfer
• Standard metric sizes save search time when swapping worn parts in the shop

Keeping these handy shaft anchors in the box keeps your toolbox tidy and saves you time hunting for loose pins. ✝️