S-98935A767 1 3/8"-4 x 12" ASTM A108 Acme Lead Screws and Nuts
Acme Lead Screws and Nuts
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Basic Information
Thread Parameters
Dimension Parameters
Lead Screw Specific Parameters
Load & Performance Parameters
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Key Features & Benefits at a Glance
- Precise linear motion control with 0.25" travel per turn for accurate positioning in industrial applications
- Exceptional durability and wear resistance thanks to Grade 2 Carbon Steel construction with Rockwell B61 hardness
- Reliable load-bearing performance with 64,000 psi tensile strength for heavy-duty mechanical systems
- Superior thread engagement and smooth operation achieved through Class 2G thread fit tolerances
- Consistent right-hand thread performance with fully threaded design for uniform force distribution
- Industry-standard compatibility with ASTM A108 specifications ensuring interchangeability
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing
Professional Applications & Engineering Value
This 1 3/8"-4 ACME Lead Screw delivers exceptional value in precision motion control systems where reliability and accuracy are paramount. Engineered from Grade 2 Carbon Steel, it provides the necessary strength and durability for industrial applications including CNC machinery, linear actuators, and material handling equipment. The ACME thread form with Class 2G fit ensures minimal backlash and consistent performance under heavy loads, while the 0.25" travel per turn offers precise positioning control. The fully threaded, right-hand design maintains uniform stress distribution throughout the 12" length, making it ideal for applications requiring smooth, predictable linear motion in manufacturing, automation, and heavy machinery sectors.
Specification Summary & Compliance
This ACME lead screw features a 1 3/8"-4 thread size with Class 2G thread fit tolerances for precision engagement. Manufactured to ASTM A108 specifications, it ensures consistent quality and performance. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, making it suitable for global industrial applications. With single thread start and 1:1 speed ratio in the inch measurement system, it delivers reliable performance in demanding mechanical environments.
