S-98935A703 1/4"-16 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: Delivers consistent 0.063" travel per turn for accurate positioning in automation systems.
- High Load Capacity: Grade 2 carbon steel construction with 64,000 psi tensile strength ensures reliable performance under stress.
- Durable Thread Design: Class 2G thread fit and fully threaded Acme profile provide smooth operation and extended service life.
- Superior Wear Resistance: Rockwell B61 hardness minimizes deformation and maintains thread integrity over repeated cycles.
- Regulatory Compliance: Meets ASTM A108 material standards and environmental regulations (RoHS 3, REACH) for global supply chain compatibility.
- Optimized for Industrial Use: Right-hand, single-start thread configuration simplifies integration with standard drive components.
- Consistent Performance: Inch-system manufacturing ensures dimensional accuracy across batch productions.
Professional Applications & Engineering Value
This 1/4-16 ACME lead screw solves critical challenges in precision motion systems where backlash control and positional accuracy are paramount. The Grade 2 carbon steel construction, hardened to Rockwell B61, resists wear in high-cycle applications while maintaining 64,000 psi tensile strength for demanding loads. The fully threaded Acme profile with Class 2G fit ensures minimal play when paired with matching nuts, making it ideal for industrial automation, CNC positioning tables, and medical equipment where 0.063" travel per turn delivers predictable linear motion. Its right-hand, single-start thread design provides straightforward installation in conveyor systems and actuator mechanisms, reducing assembly time and maintenance costs.
Specification Summary & Compliance
Manufactured to ASTM A108 standards with Class 2G thread fit tolerances for reliable engagement. The 1/4-16 Acme thread maintains ISO-compatible inch system dimensions, while material certifications include compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives. Mechanical properties are verified to 64,000 psi tensile strength and Rockwell B61 hardness for quality assurance.
