S-8077A363 8-32 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 and Black Oxide finish, ideal for harsh industrial environments
- Precise alignment and smooth rotation thanks to the 1/4" shoulder diameter with tight tolerance for reliable assembly
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure, vibration-resistant fastening ensured by Class 3A thread fit and coarse UNC threading
- Easy installation and removal using standard 1/8" hex drive and knurled socket head for improved grip
- Long-term reliability backed by Rockwell B79 hardness and compliance with ASME B18.3 standards
- Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for global supply chain compatibility
Professional Applications & Engineering Value
This 8-32 UNC shoulder screw delivers exceptional performance in precision machinery, automation systems, and heavy-duty equipment where alignment and durability are critical. The 316 Stainless Steel material provides excellent resistance to chemicals, moisture, and high temperatures, reducing maintenance in corrosive settings. Its Black Oxide finish enhances corrosion protection while minimizing galling. The 1/4" shoulder diameter with controlled tolerance ensures accurate component positioning, preventing misalignment in rotating assemblies. Combined with Class 3A thread fit and coarse UNC threading, it offers secure fastening under dynamic loads, making it ideal for pivots, axles, and guide posts in manufacturing and aerospace applications.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with 8-32 UNC coarse threading and precise shoulder diameter tolerance of -0.004" to -0.002". It is manufactured in accordance with ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring consistent quality and regulatory adherence for industrial use.
