S-91273A664 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 corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
- Superior load-bearing capacity offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under stress.
- Precise alignment and smooth rotation ensured by the standard shoulder fit and knurled head texture, reducing assembly time.
- Easy installation and removal with a 1/4" hex drive socket head, providing secure torque application without stripping.
- Durable black oxide finish enhances wear resistance and provides a sleek, low-glare appearance.
- Accurate thread engagement with Class 2A UNC coarse threads, ensuring consistent fastening in various materials.
- Compliance with environmental standards including RoHS 3 and REACH, meeting global regulatory requirements for safe use.
Professional Applications & Engineering Value
This 1/2"-13 UNC shoulder screw is engineered to address common industrial challenges such as misalignment and vibration-induced loosening. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive assemblies, and outdoor equipment. The black oxide finish not only improves durability but also reduces friction during installation. With a knurled head for enhanced grip and a standard shoulder diameter, it ensures precise component positioning, minimizing wear and extending service life in high-stress environments. Its coarse thread design allows for quick assembly in softer materials, boosting efficiency in production lines.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit with UNC coarse threads for reliable tolerance control. It adheres to strict manufacturing standards, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.
