S-8077A137 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 and chemical exposure.
- Enhanced durability and wear resistance from the black oxide finish, providing a protective layer against abrasion and galling.
- High-strength performance with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable load-bearing in demanding applications.
- Precise alignment and smooth rotation thanks to the 1" diameter shoulder with tight tolerances, minimizing component misalignment.
- Secure and efficient installation using the 1/2" hex drive and knurled head, offering excellent grip and torque transmission.
- Reliable thread engagement with Class 3A UNC coarse threads, providing superior fit and vibration resistance in assemblies.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and heavy-duty equipment. The black oxide finish not only enhances corrosion resistance but also reduces friction, preventing seizing in high-stress rotational applications. With a 1" shoulder diameter and tight tolerances, it provides a stable bearing surface for pivoting parts, reducing wear on mating components. The Class 3A thread fit and UNC coarse threads ensure quick assembly and reliable performance in vibrating environments, making it ideal for use in conveyor systems, robotic arms, and industrial molds where alignment and strength are paramount.
Specification Summary & Compliance
This shoulder screw features a 3/4"-10 UNC thread with Class 3A fit for high precision, a shoulder diameter of 1" with tolerance of -0.004" to -0.002", and shoulder length of 3/4" with tolerance of -0.005" to 0.005". It complies with ASME B18.3 specifications, RoHS 3 (2015/863/EU), and REACH (EC 1907/2006) regulations, ensuring adherence to mechanical and environmental standards for industrial fasteners.
