S-90807A142 1/2"-13 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 140,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance provided by black oxide finish, extending service life in demanding industrial environments
- Precision thread engagement with Class 3A fit ensuring secure fastening and vibration resistance
- Enhanced grip and handling through knurled head design for easier installation and removal
- Optimal material strength from alloy steel construction with Rockwell C32 hardness for durability
- Secure drive engagement with hex socket design preventing cam-out during torque application
- Environmental compliance meeting RoHS 3 and REACH regulations for safe usage across industries
Professional Applications & Engineering Value
This 1/2"-13 UNC shoulder screw delivers critical engineering solutions for precision machinery and industrial equipment. The alloy steel construction with Rockwell C32 hardness provides exceptional resistance to wear and deformation under heavy loads, while the black oxide finish offers superior corrosion protection in harsh operating environments. The Class 3A thread fit ensures precise alignment and secure fastening in applications requiring minimal clearance, such as rotating assemblies, pivoting mechanisms, and precision guides. The knurled head texture combined with hex drive design facilitates installation in confined spaces, making it ideal for automotive, aerospace, and manufacturing equipment where reliability and precision are paramount.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and UNC coarse thread spacing for optimal engagement. The shoulder diameter maintains tight tolerance of -0.004" to -0.002" for precise locating applications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global markets. The combination of 140,000 psi tensile strength and controlled dimensional accuracy meets rigorous industrial requirements for precision shoulder screw applications.
