صامولة نصفية، مخرطة منضدية

The brass half nut was a perfect match for my SC4 lathe, and the threads engaged smoothly without any play. Really happy to get the 301 part number exactly as shown.

Installed this SC4-301 half nut yesterday and it fit perfectly on my bench lathe, no filing needed. The threads engaged smoothly right from the first test pass. Solid replacement that does exactly what it should.

Threads onto the SC4 thread pattern perfectly, so the half-nut engages smoothly with the leadscrew. It’s machined cleanly and fits without any binding, though I wish the edges were slightly chamfered for easier handling during install.