S-98935A031 1/2"-8 x 6 ft. ASTM A108 Acme Lead Screws and Nuts

Acme Lead Screws and Nuts

1456FA00578 Acme Lead Screws and Nuts
1456FA00578 Acme Lead Screws and Nuts

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Part No.
Part No. 1456FA00578
Equivalent to mcmaster :
98935A031

Basic Information

Component Lead Screw
Material Carbon Steel
Hardness Rockwell B61
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant
Specifications Met ASTM A108

Thread Parameters

Thread Type Acme
Thread Direction Right Hand
Thread Size 1/2"-8
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 0.125"
Speed Ratio 1:1

Load & Performance Parameters

Tensile Strength 64000 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

  • High Load Capacity: With a tensile strength of 64,000 psi, this lead screw reliably handles heavy-duty applications without failure.
  • Precision Linear Motion: The 0.125" travel per turn ensures accurate and consistent positioning in automated systems.
  • Enhanced Durability: Grade 2 carbon steel with Rockwell B61 hardness provides excellent wear resistance for long service life.
  • Secure Thread Engagement: Class 2G thread fit offers optimal clearance for smooth operation and reduced binding in industrial settings.
  • Versatile Right-Hand Design: Fully threaded and right-hand direction allows for easy integration into standard linear motion assemblies.
  • Regulatory Compliance: Meets ASTM A108, RoHS 3, and REACH standards, ensuring safety and environmental responsibility in global markets.
  • Consistent Performance: Manufactured to precise ACME thread standards for reliable power transmission and minimal backlash.

Professional Applications & Engineering Value

This 1/2"-8 ACME lead screw is engineered to address critical needs in industrial automation and machinery. Constructed from Grade 2 carbon steel, it delivers high tensile strength and hardness, making it ideal for applications requiring robust linear motion under heavy loads, such as CNC machines, lifting equipment, and conveyor systems. The fully threaded and right-hand design ensures straightforward installation and consistent performance, while the precise ACME threading and Class 2G fit minimize friction and wear, reducing maintenance downtime. Its compliance with ASTM A108 guarantees material integrity, supporting reliable operation in demanding environments like manufacturing, packaging, and material handling where precision and durability are paramount.

Specification Summary & Compliance

This lead screw features a 1/2"-8 ACME thread with Class 2G thread fit for standard tolerance and smooth operation. It adheres to ASTM A108 specifications for material quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for international use.

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