• Basics of Actuating Screws

    Posted August 22, 2019 - Updated Dec 3, 2019

    What are Actuating Screws? Actuating screws include Acmes, Hi-leads®, Torqsplines®, Ballscrews, Freewheeling Ballscrews and many other special screws such as Stub Acme, 60-degree Stub, Buttress and Square threads. Unified and ISO fastener “Vee” threads should not be used for actuation as their 30° flank angles and finer pitches are designed for fastening and locking down. […]