S-98940A412 3/4"-5 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional accuracy with ±0.009" per foot travel tolerance for reliable, repeatable positioning in precision machinery.
• Superior durability from hardened 4140 alloy steel construction, resisting wear and deformation in high-stress applications.
• High tensile strength of 125,000 psi ensures reliable performance under heavy loads without failure.
• Corrosion-resistant black-oxide finish enhances longevity and reduces maintenance in harsh industrial environments.
• Left-hand Acme threading provides versatile motion control options for specialized assembly and automation systems.
• Class 2C thread fit offers optimal clearance for smooth operation with minimal backlash in nut assemblies.
• RoHS 3 compliance ensures environmental safety and meets international regulatory standards for industrial components.

Professional Applications & Engineering Value

This precision Acme lead screw is engineered for demanding industrial applications where accuracy and durability are critical. The hardened 4140 alloy steel core provides exceptional resistance to wear and high loads, making it ideal for CNC machinery, automated positioning systems, and heavy-duty actuators. The left-hand Acme thread design allows for unique motion control in complex assemblies, while the black-oxide surface treatment protects against corrosion in humid or abrasive environments. With a travel accuracy of ±0.009" per foot, this fully threaded lead screw ensures consistent performance in precision engineering tasks, reducing downtime and maintenance costs. Its robust construction addresses common pain points like thread wear and positional drift, delivering long-term reliability in industrial automation and manufacturing setups.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards, ensuring proper clearance and smooth operation with compatible nuts. Manufactured from black-oxide 4140 alloy steel with a tensile strength of 125,000 psi and Brinell 271 hardness, it meets rigorous industrial requirements. The Acme thread type and left-hand direction are precision-machined for consistent performance. Compliance with RoHS 3 (2015/863/EU) confirms its adherence to environmental safety regulations, making it suitable for global supply chains and sensitive applications.