S-98940A719 3/8"-16 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional precision with ±0.009" per foot travel accuracy for reliable, repeatable motion control in demanding applications
• Superior durability from hardened 4140 alloy steel construction, providing excellent wear resistance and long service life
• Optimized load handling with 125,000 psi tensile strength and Brinell 271 hardness for heavy-duty industrial applications
• Consistent performance through Class 2C thread fit ensuring smooth operation and reduced backlash in precision assemblies
• Corrosion-resistant protection with black-oxide surface treatment extending component life in challenging environments
• Left-hand threading capability enabling specialized motion control configurations and reverse-direction applications
• Regulatory compliance meeting RoHS 3 standards for environmentally conscious manufacturing operations

Professional Applications & Engineering Value

This 3/8"-16 Left Hand Acme Lead Screw delivers critical engineering solutions for precision motion control systems requiring reverse-direction operation. The hardened 4140 alloy steel construction with black-oxide surface treatment provides exceptional wear resistance in industrial automation, CNC machinery, and positioning equipment. The Class 2C thread fit ensures minimal backlash while maintaining smooth operation under heavy loads. With its ±0.009" per foot accuracy and consistent 0.063" travel per turn, this precision Acme screw eliminates positioning errors in manufacturing processes, reducing downtime and maintenance costs. The left-hand Acme threading enables specialized configurations where standard right-hand threads are impractical, making it ideal for complex mechanical systems requiring precise reverse motion control.

Specification Summary & Compliance

This inch-system Acme lead screw features 3/8"-16 thread size with Class 2C thread fit tolerances, single-start threading, and full-length threading. Manufactured from black-oxide coated 4140 alloy steel with hardening treatment, it delivers 125,000 psi tensile strength and Brinell 271 hardness. The component maintains ±0.009" per foot accuracy with 0.063" travel distance per turn. Compliant with RoHS 3 (2015/863/EU) environmental standards, this precision screw meets industrial requirements for motion control applications requiring left-hand thread direction and reliable performance in demanding conditions.