Lead Screw Assembly - LSR1601T-0508-RCF-NNN-NNN-N Length: 508mm Round Anti-Backlash NutLead Screw with a Round Anti Backlash Nut and a 16mm diameter, 1mm lead, and a length of 508mm, made from precision rolled 300 Series Stainless Steel and coated with PTFE to prevent flaking. The Round Constant Force Anti Backlash nut uses a spring to maintain uniform radial pressure, reducing backlash by 2 4 times over its lifespan. With exceptional lead accuracy of 0. 003" ft (76 m 300 mm), the assembly exceeds industry standards, achieving unmatched