This document provides an overview of the key components of a flatlock machine. It describes the thread stand, cone holder, guide hole, thread guides, thread tensioners, ceramic guide, hand wheel, needles, spreader, spreader thread tensioner, spreader thread guide, needle bar, presser bar, presser foot, feed dog, throat plate, base plate, top spreader, bottom looper thread, take up motion, and various thread guides. The document is authored by K. Prabu, an assistant professor at Kumaraguru College of Technology, to explain the parts and functioning of a flatlock machine.