S-98935A560 2"-4 x 6 ft. ASTM A108 Acme Lead Screws and Nuts

Acme Lead Screws and Nuts

1456FA00645 Acme Lead Screws and Nuts
1456FA00645 Acme Lead Screws and Nuts

Image may differ from product. See technical specification for details.

Part No.
Part No. 1456FA00645
Equivalent to mcmaster :
98935A560

Basic Information

Component Lead Screw
Material Carbon Steel
Hardness Rockwell B61
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant
Specifications Met ASTM A108

Thread Parameters

Thread Type Acme
Thread Direction Left Hand
Thread Size 2"-4
Threading Fully Threaded
Thread Fit Class 2G
System of Measurement Inch

Dimension Parameters

Length 6 ft.

Lead Screw Specific Parameters

Number of Thread Starts 1
Travel Distance per Turn 0.25"
Speed Ratio 1:1

Load & Performance Parameters

Tensile Strength 53000 psi
Fastener Strength Grade/Class Grade 2
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Precise motion control with 0.25" travel per turn for accurate positioning in automated systems
  • Exceptional durability from Grade 2 carbon steel construction with 53,000 psi tensile strength and Rockwell B61 hardness
  • Reliable left-hand thread operation for specialized applications requiring reverse direction movement
  • Consistent performance ensured by Class 2G thread fit and fully threaded 6-foot length
  • Industry-standard compatibility with ACME 2"-4 thread profile meeting ASTM A108 specifications
  • Environmental compliance with RoHS 3 and REACH regulations for safe industrial use
  • Versatile installation with single-start threading and 1:1 speed ratio for straightforward integration

Professional Applications & Engineering Value

This 2"-4 ACME left-hand lead screw delivers exceptional value in precision motion control systems where reliability and accuracy are paramount. Engineered from Grade 2 carbon steel, the component withstands continuous operation in industrial environments while maintaining dimensional stability. The fully threaded design with Class 2G thread fit ensures smooth, consistent movement across the entire 6-foot length, eliminating backlash concerns in positioning applications. The left-hand thread direction provides critical functionality for specialized machinery requiring reverse motion sequences, while the 0.25" travel per turn offers precise control in CNC equipment, lifting mechanisms, and automated manufacturing systems. This ACME lead screw solves common engineering challenges of wear resistance, positional accuracy, and long-term reliability in demanding industrial settings.

Specification Summary & Compliance

This precision ACME lead screw features 2"-4 left-hand threads with Class 2G thread fit and 0.25" travel per turn across its 6-foot length. Manufactured from Grade 2 carbon steel with 53,000 psi tensile strength and Rockwell B61 hardness, the component meets ASTM A108 manufacturing standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while maintaining precise dimensional tolerances throughout its service life.

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