S-91054A506 3/8"-16 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced wear and galling resistance due to the durable TiCN coating, extending service life
- Precise component alignment and pivot points enabled by the accurately machined 1/2" shoulder with tight diameter tolerance
- High-strength fastening with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing applications
- Easy installation and removal using a standard 1/4" hex key drive and coarse 3/8"-16 UNC threads
- Consistent and reliable thread engagement ensured by the Class 2A thread fit for uniform clamping force
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This precision shoulder screw is engineered to solve critical alignment and rotational challenges in demanding assemblies. The 1/2" shoulder diameter with its precise tolerance provides a stable bearing surface, eliminating misalignment in machinery, pivoting mechanisms, and gear assemblies. Manufactured from 18-8 Stainless Steel, it offers excellent resistance to rust and corrosion, which is vital in moist or chemically aggressive settings. The addition of a TiCN coating significantly reduces friction and wear, preventing seizing and extending the component's lifecycle in high-cycle applications. Combined with the 3/8"-16 UNC coarse thread and socket head design, it ensures quick, secure fastening in industrial automation, automotive jigs, and conveyor systems, delivering long-term reliability and reduced maintenance.
Specification Summary & Compliance
This shoulder screw features a 3/8"-16 UNC thread with a Class 2A fit for consistent and precise engagement. The shoulder is manufactured to a diameter tolerance of -0.002" to 0" and a length tolerance of 0" to 0.003" for exacting assembly requirements. It is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and globally regulated markets.
