S-93410A450 3/4"-8 x 6 ft. ASTM A193 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional Load Capacity: ASTM Grade B7 alloy steel construction provides 125,000 psi tensile strength for reliable performance in demanding applications.
• Precision Motion Control: Delivers consistent 0.125" travel per turn for accurate positioning and repeatable linear movement.
• Enhanced Durability: Rockwell C35 hardness ensures excellent wear resistance and long service life under continuous operation.
• Left-Hand Threading Advantage: Enables unique mechanical configurations and reverse motion control where standard right-hand threads are unsuitable.
• Superior Thread Quality: Class 2G thread fit guarantees smooth engagement with mating nuts and reduced backlash.
• Full-Length Versatility: 6 ft. fully threaded length allows for flexible installation and customization across various setups.
• Regulatory Compliance: Meets ASTM A193 specifications and is RoHS 3 & REACH compliant for safe use in regulated industries.

Professional Applications & Engineering Value

This 3/4"-8 Left Hand Acme Lead Screw delivers critical engineering value in precision motion control systems where reliability and accuracy are paramount. The ASTM Grade B7 alloy steel construction provides exceptional strength-to-weight ratio, making it ideal for heavy-duty industrial applications such as CNC machinery, linear actuators, and material handling equipment. The left-hand Acme threading offers unique solutions for applications requiring reverse motion or specialized mechanical arrangements that standard right-hand threads cannot accommodate. With its fully threaded design and Class 2G thread fit, this lead screw ensures smooth power transmission and minimal backlash, significantly reducing maintenance requirements and downtime in high-cycle operations. The combination of high tensile strength and Rockwell C35 hardness makes it particularly valuable in environments subject to heavy loads and continuous operation.

Specification Summary & Compliance

This precision Acme lead screw features 3/4"-8 left-hand threads with Class 2G thread fit tolerance, ensuring precise engagement with mating components. Manufactured from ASTM Grade B7 alloy steel meeting ASTM A193 specifications, it delivers 125,000 psi tensile strength and Rockwell C35 hardness. The screw provides 0.125" travel per turn with single-start threading over its 6 ft. fully threaded length. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications worldwide.