S-98940A316 3/8"-16 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: With a tensile strength of 125,000 psi, this lead screw reliably handles high-stress applications without deformation.
• Superior Wear Resistance & Durability: Hardened 4140 alloy steel with Brinell 271 hardness ensures long service life, even in demanding, high-cycle environments.
• Precision Motion Control: Achieves ±0.009" per foot accuracy for reliable, repeatable positioning in automated systems.
• Optimized for Reverse or Counter-Rotation Applications: The left-hand Acme thread provides specific directional control where standard right-hand threads are unsuitable.
• Corrosion-Resistant, Ready-to-Use Finish: The black-oxide surface treatment offers improved corrosion resistance and is ready for installation.
• Guaranteed Interchangeability: The Class 2C thread fit ensures consistent, predictable backlash and smooth mating with standard Acme nuts.
• Compliant for Global Use: Meets RoHS 3 directives, making it suitable for regulated markets and environmentally conscious operations.

Professional Applications & Engineering Value

Engineered for precision motion control, this 3/8"-16 Left Hand Acme Lead Screw solves critical engineering challenges in industrial automation, CNC machinery, and lifting systems. Its hardened 4140 alloy steel construction and Acme threading provide the ideal balance of strength and wear resistance, directly addressing the need for components that can endure continuous operation without failure. The left-hand thread direction is specifically valuable in applications requiring reverse lead mechanisms or to prevent loosening under specific rotational forces. Combined with its black-oxide finish, this screw offers enhanced durability in environments where moisture or mild chemicals are present, reducing maintenance intervals and total cost of ownership for B2B clients.

Specification Summary & Compliance

This lead screw adheres to standard Acme thread specifications with a Class 2C thread fit for consistent performance. It features a travel distance of 0.063" per turn with a guaranteed accuracy of ±0.009" per foot. The component is manufactured from hardened 4140 alloy steel and is fully compliant with RoHS 3 (2015/863/EU) regulations.