S-98935A901 2 1/2"-4 x 3 ft. ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Precision Motion Control: Achieve consistent 0.25" linear travel per revolution for accurate positioning in automated systems.
• High Tensile Strength: With 64,000 psi tensile strength, this screw reliably handles heavy loads without deformation.
• Superior Wear Resistance: Rockwell B61 hardness ensures long-lasting performance in high-cycle industrial applications.
• Optimized Thread Engagement: Class 2G thread fit provides smooth operation with proper clearance for reduced binding.
• Industrial-Grade Material: Grade 2 carbon steel construction offers excellent mechanical properties for demanding environments.
• Standardized Performance: Manufactured to ASTM A108 specifications for guaranteed dimensional accuracy and reliability.
• Environmental Compliance: RoHS 3 and REACH compliant for safe use in regulated industries worldwide.

Professional Applications & Engineering Value

This 2 1/2"-4 ACME lead screw delivers exceptional value in precision motion control systems where reliability and accuracy are paramount. The Grade 2 carbon steel construction combined with ACME threading provides optimal strength for linear motion applications in CNC machinery, industrial automation, and material handling equipment. The fully threaded design with single thread start ensures consistent performance throughout the entire 3 ft length, while the right-hand thread direction and Class 2G thread fit prevent backlash and ensure smooth operation. Engineered to withstand continuous use in demanding environments, this lead screw solves critical positioning challenges while maintaining 64,000 psi tensile strength and Rockwell B61 hardness throughout its service life.

Specification Summary & Compliance

This precision ACME lead screw features 2 1/2"-4 thread size with Class 2G thread fit tolerance, ensuring proper engagement with matching nuts. The component meets ASTM A108 manufacturing specifications for dimensional accuracy and material properties. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards confirms environmental responsibility and regulatory adherence for global industrial applications. The screw delivers 0.25" travel distance per turn with single thread start configuration, maintaining consistent performance across the full 3-foot length.