S-92012A311 1/4"-20 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 strength and durability with 140,000 psi tensile strength alloy steel construction, ideal for high-stress industrial applications
- Precise alignment and reduced wear thanks to the 3/8" shoulder diameter with precise fit tolerance, minimizing component movement
- Corrosion-resistant black oxide finish provides reliable protection in demanding environments, extending service life
- Easy installation and removal with 5/32" hex socket drive, allowing for high torque application without slippage
- Consistent thread engagement with Class 2A UNC coarse threads, ensuring reliable fastening in various materials
- Right-hand thread direction for standard assembly procedures, improving installation efficiency
- Compliance with environmental regulations including RoHS 3 and REACH, making it suitable for global industrial supply chains
Professional Applications & Engineering Value
This precision shoulder screw is engineered to solve critical alignment and durability challenges in industrial machinery. The alloy steel construction with Rockwell C32 hardness ensures it withstands repetitive loads and high-stress conditions, making it ideal for pivot points, mounting assemblies, and rotating mechanisms. The black oxide finish enhances corrosion resistance, crucial for equipment exposed to moisture or chemicals. With its 3/8" shoulder diameter providing exact positioning and the 1/4"-20 UNC coarse threads offering secure fastening, this screw reduces assembly errors and maintenance downtime. It serves as a reliable industrial fastener in automotive, manufacturing, and automation systems where precision and longevity are paramount.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit for consistent engagement and features a 3/8" shoulder diameter with tight tolerances (-0.001" to 0") for precise alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Manufactured from high-strength alloy steel with a black oxide finish, it meets industrial standards for durability and performance in demanding applications.
