S-90281A107 5/16"-18 x 8" DIN 939 Setup Studs
Setup Studs
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
End A Parameters
End B Parameters
Material & Strength Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black-oxide steel coating, extending service life in demanding industrial environments.
- Precise and reliable thread engagement due to Class 2A thread fit, ensuring consistent assembly and reducing the risk of cross-threading.
- High tensile strength of 125,000 psi provides exceptional load-bearing capacity for secure and durable fastening in heavy-duty applications.
- Double-ended threading allows for versatile and efficient installation from either end, speeding up assembly processes.
- Conforms to DIN 939 standard, guaranteeing dimensional accuracy and interchangeability for global engineering projects.
- Hardness of Rockwell C22 offers excellent wear resistance, maintaining thread integrity through repeated use.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for regulated industries.
Professional Applications & Engineering Value
These Black-Oxide Steel setup studs are engineered to address common challenges in precision machinery and equipment assembly. The 5/16"-18 thread size and threading on both ends facilitate quick alignment and secure mounting in jigs, fixtures, and automated systems, reducing setup time and minimizing errors. The black-oxide surface treatment provides a protective layer against rust and wear, ideal for environments exposed to moisture or chemicals. With a minimum tensile strength of 125,000 psi and adherence to DIN 939, these studs deliver consistent performance in high-stress applications such as CNC machining, automotive manufacturing, and industrial tooling, ensuring long-term reliability and reduced maintenance costs.
Specification Summary & Compliance
This product features a Class 2A thread fit for precise dimensional tolerance, with thread size of 5/16"-18 and equal thread lengths of 1 1/8" on both ends. It meets the DIN 939 manufacturing specification, ensuring standardized quality. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations for hazardous substances.
