S-98940A404 3/8"-12 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional dimensional stability with ±0.009" per foot accuracy ensures reliable, repeatable linear motion in demanding applications.
• Superior wear resistance and corrosion protection from the hardened Black-Oxide 4140 alloy steel construction, extending service life in industrial environments.
• High load-bearing capacity with 125,000 psi tensile strength and Brinell 271 hardness for robust performance under significant mechanical stress.
• Precise linear advancement of 0.083" per revolution enables accurate positioning and controlled movement in automation systems.
• Reliable left-hand thread engagement with Class 2C fit provides secure, backlash-resistant operation in specialized machinery setups.
• Long 6-foot fully threaded length offers versatile installation options for extended travel applications without splicing.
• Environmental compliance assurance with RoHS 3 (2015/863/EU) certification meets international regulatory standards for hazardous substances.

Professional Applications & Engineering Value

This precision ACME lead screw solves critical engineering challenges in industrial automation and motion control systems. The hardened 4140 alloy steel with Black-Oxide surface treatment provides exceptional durability against abrasion and mild corrosion, significantly reducing maintenance frequency in harsh operating conditions. The left-hand ACME threading with Class 2C fit delivers reliable, backlash-minimized performance for applications requiring reverse-direction linear motion or specialized mechanical arrangements. With its ±0.009" per foot accuracy and consistent 0.083" travel per turn, this component ensures precise positioning in CNC equipment, material handling systems, and precision manufacturing machinery where repeatable linear movement is paramount for product quality and operational efficiency.

Specification Summary & Compliance

This 3/8"-12 ACME lead screw features Class 2C thread fit per inch standards, ensuring proper clearance for smooth operation. The component delivers 0.083" travel distance per turn with ±0.009" per foot accuracy for precise linear motion control. Manufactured from hardened 4140 alloy steel with Brinell 271 hardness and 125,000 psi tensile strength, it meets rigorous industrial requirements. The product is fully RoHS 3 (2015/863/EU) compliant, adhering to international restrictions on hazardous substances for environmentally responsible industrial applications.