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Discover the perfect solutions for your mechanical needs with our extensive range of ball plungers and grub screws. Designed to provide precise and reliable positioning, our products are trusted by professionals across various industries. High quality brass tipped grub screws increase the screw contact area and give a strong hold without gouging or damaging the mating surface. Ball plungers, otherwise known as spring plungers are spring loaded elements with a ball bearing used to lock, locate, apply pressure and index on fixtures, machinery and equipment. Cotel Mouldings precision ball plungers and grub screws deliver optimal functionality, efficiency, and value.