S-8077A441 10-24 ASME B18.3 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 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance
- High tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable load-bearing in demanding applications
- Precise Class 3A thread fit with UNC coarse threading for secure, vibration-resistant fastening
- Easy installation and removal with hex socket drive and knurled head for improved grip and torque application
- Accurate shoulder dimensions with tight tolerances for consistent alignment and spacing in assemblies
- Full compliance with industry standards including ASME B18.3, RoHS 3, and REACH for quality assurance and regulatory safety
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with black oxide finish is engineered to address critical industrial challenges, including corrosion, high stress, and precision alignment requirements. The UNC coarse threading and Class 3A thread fit ensure secure fastening in vibrating machinery, while the knurled head and hex drive facilitate easy handling in confined spaces. Ideal for applications such as pivots, axles, and spacers in automotive, aerospace, and manufacturing equipment, it provides reliable performance under heavy loads and harsh conditions. The precise shoulder diameter and length with minimal tolerances guarantee accurate component positioning, reducing assembly errors and maintenance downtime.
Specification Summary & Compliance
This shoulder screw features a 10-24 UNC thread with Class 3A fit and coarse spacing, ensuring high precision and interchangeability. Shoulder dimensions include a diameter of 1/4" with tolerance from -0.004" to -0.002" and length of 3 3/4" with tolerance from -0.005" to 0.005". It meets ASME B18.3 specifications for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
