150mm(5.9 Inches)Tr8x2 Lead Screw with T8 Brass Nut (Acme Thread, 2mm Pitch, 1 Start, 2mm Lead) for LCD DLP SLA 3D Printer Z Axis and CNC Machine : Amazon.co.uk: Business, Industry &
Trapezoidal thread form - Wikipedia
Acme Threaded Bars | Keystone Threaded Products
Telescopic Poles for Fire and Rescue purposes, telescopic poles for safety
External ACME Thread General Purpose Size Chart – WESTport Corp.