S-92012A402 5/16"-18 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 capability with 140,000 psi tensile strength for reliable performance in high-stress applications
- Precision shoulder fit ensures accurate alignment and reduced vibration in assemblies requiring exact positioning
- Enhanced corrosion resistance through black oxide finish, extending service life in industrial environments
- Superior durability from Rockwell C32 hardness alloy steel, resisting wear under repeated use
- Easy installation and removal with 3/16" hex socket drive, minimizing tool slippage and damage
- Wide compatibility with UNC coarse thread and Class 2A fit for standard industrial components
- Regulatory compliance with RoHS 3 and REACH, ensuring safe use in global markets
Professional Applications & Engineering Value
This 5/16"-18 UNC shoulder screw delivers critical engineering solutions where precise rotational alignment and high shear strength are paramount. The alloy steel construction with black oxide finish combats corrosion in harsh operating conditions, while the precise shoulder diameter (3/8") and length tolerance ensure minimal radial play in linkages, pivots, and gear assemblies. Its coarse thread spacing and Class 2A thread fit facilitate quick assembly in automotive, machinery, and robotic applications, reducing installation time without compromising joint integrity. The socket head design with hex drive allows for compact spaces and high torque application, making it ideal for heavy-duty fastening in confined industrial environments.
Specification Summary & Compliance
Manufactured to exacting standards, this shoulder screw features Class 2A thread fit per UNC specifications with precise shoulder diameter tolerance (-0.001" to 0") and shoulder length tolerance (0" to 0.002"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety adherence. The inch-system measurements and consistent manufacturing ensure reliable performance in OEM and MRO applications requiring UNC coarse thread compatibility.
