S-91054A462 4-40 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 and TiCN coating, ideal for harsh industrial environments.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications.
- Precise shoulder fit with a 1/8" diameter and tight tolerances ensuring accurate alignment and reduced assembly errors.
- Reliable thread performance due to Class 2A UNC coarse threads, providing secure fastening and easy installation.
- Enhanced durability from the TiCN coating, which increases wear resistance and extends service life.
- Compliance with global standards including RoHS 3 and REACH, ensuring safe and environmentally responsible use.
- Easy installation and removal with a hex drive socket head, allowing for efficient maintenance in confined spaces.
Professional Applications & Engineering Value
This 4-40 UNC shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component wear. The 18-8 stainless steel base material, combined with a TiCN coating, delivers excellent corrosion and abrasion resistance, making it suitable for demanding environments like automotive, aerospace, and machinery. The precise shoulder diameter and Class 2A thread fit ensure stable positioning and reduced vibration, minimizing downtime in high-stress applications. Its right-hand coarse threads facilitate quick assembly, while the hex drive design allows for reliable torque application, enhancing overall operational efficiency and longevity in industrial settings.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It features a shoulder diameter of 1/8" with tolerances from -0.002" to 0", and a shoulder length of 3/16" with tolerances from 0" to 0.003" for precise assembly. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.
