S-98935A439 3/4"-5 x 3 ft. ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Durability: Grade 2 Carbon Steel construction with Rockwell B61 hardness ensures long-lasting performance in demanding industrial environments.
• High Tensile Strength: 53,000 psi tensile strength provides reliable load-bearing capacity for heavy-duty linear motion applications.
• Precision Thread Fit: Class 2G thread fit guarantees smooth operation and reduced backlash in power transmission systems.
• Optimized Travel Efficiency: 0.2" travel per turn with single thread start delivers consistent linear movement with minimal rotation effort.
• Left-Hand Thread Advantage: Reverse threading direction enables unique mechanical configurations and counter-rotational applications.
• Full Thread Coverage: Fully threaded 3-foot length offers maximum flexibility in mounting and positioning requirements.
• Regulatory Compliance: Meets ASTM A108 standards while being RoHS 3 and REACH compliant for global manufacturing applications.

Professional Applications & Engineering Value

This 3/4"-5 Left Hand Acme Lead Screw delivers exceptional engineering value in linear motion systems requiring precise positioning and power transmission. The Grade 2 Carbon Steel construction combined with Acme threading provides optimal wear resistance and load distribution, solving common industrial challenges of component fatigue and positioning inaccuracy. The left-hand thread direction enables specialized applications where reverse motion coordination is critical, while the fully threaded design allows for unlimited nut positioning along the entire 3-foot length. With its 0.2" travel per turn and Class 2G thread fit, this component ensures smooth operation in CNC machinery, industrial actuators, and precision positioning equipment where consistent performance and minimal maintenance are paramount.

Specification Summary & Compliance

This Acme lead screw features precision 3/4"-5 thread size with Class 2G thread fit tolerances and single thread start configuration. Manufactured to ASTM A108 specifications, the component demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The inch system measurement ensures compatibility with North American industrial equipment, while the documented 53,000 psi tensile strength and Rockwell B61 hardness verify mechanical performance according to established industrial grading standards.