S-8077A763 1/2"-13 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
- Exceptional corrosion resistance with 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precise thread engagement with Class 3A UNC coarse threads ensuring secure, vibration-resistant fastening and easy assembly.
- Superior grip and handling from the knurled socket head and 5/16" hex drive, preventing slippage during installation.
- Accurate shoulder alignment with a 5/8" diameter and 4 3/4" length, providing stable pivot points and spacing in machinery.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
- Durable and long-lasting design with Rockwell B79 hardness, reducing wear and maintenance costs over time.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial settings, such as corrosion from chemicals or moisture and mechanical stress from high loads. The black oxide finish enhances surface protection, while the Class 3A UNC coarse thread and right-hand thread direction facilitate quick, secure installations in equipment like conveyor systems, robotics, and automotive assemblies. The precise shoulder diameter and length ensure accurate component alignment, reducing misalignment issues and improving operational efficiency. Ideal for industrial fasteners in machinery requiring reliable pivots or spacers, it combines durability with compliance to meet rigorous engineering demands.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with UNC coarse threads for high precision, and tolerances include shoulder diameter (-0.004" to -0.002") and length (-0.005" to 0.005"). It meets ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry-standard reliability.
