S-8077A873 3/4"-10 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 industrial environments
- Enhanced durability and wear resistance from the black oxide finish, extending service life
- Precise alignment and smooth rotation enabled by the 4" shoulder with tight diameter tolerance
- High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Secure, non-slip installation using the knurled socket head with 1/2" hex drive
- Reliable thread engagement with Class 3A fit and coarse UNC thread for quick assembly
- Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for quality assurance
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial machinery, automation, and precision equipment. The black oxide finish provides an added layer of protection against corrosion and abrasion, making it suitable for environments exposed to moisture, chemicals, or high friction. The 4" shoulder length with minimal tolerance ensures accurate component alignment, reducing wear on moving parts and minimizing maintenance downtime. With a Class 3A thread fit and coarse UNC thread, it offers robust holding power and ease of installation in high-vibration settings. The knurled socket head and 1/2" hex drive allow for secure torque application, preventing stripping during assembly. Ideal for use in conveyor systems, robotic arms, and manufacturing jigs, this shoulder screw delivers reliable performance where precision and strength are paramount.
Specification Summary & Compliance
This shoulder screw features a 3/4"-10 UNC coarse thread with Class 3A fit for precise thread engagement. The shoulder diameter is 7/8" with a tolerance of -0.004" to -0.002", and the shoulder length is 4" with a tolerance of -0.005" to 0.005". It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in industrial applications.
