S-8077A796 1/4"-20 ASME B18.3 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
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 long-lasting performance and reduced maintenance
- Precise alignment and secure mounting thanks to the 6" shoulder length with tight tolerances, minimizing component misalignment
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliable performance under stress
- Consistent thread engagement from Class 3A thread fit and UNC coarse threading, enabling quick assembly and vibration resistance
- Easy installation and removal with hex drive and knurled socket head, allowing for secure tool grip in confined spaces
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with black oxide finish is engineered to address critical challenges in industrial applications such as machinery assembly, pivoting mechanisms, and precision equipment. The 1/4"-20 UNC thread with Class 3A fit ensures reliable fastening in high-vibration environments, while the 6" shoulder length provides exact component spacing and rotational support. Made from corrosion-resistant 316 stainless steel, it withstands moisture and chemicals, reducing downtime in demanding settings like manufacturing and automotive systems. The hex drive and knurled head facilitate easy installation, making it a versatile choice for shoulder mounting needs where durability and precision are paramount.
Specification Summary & Compliance
This shoulder screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for precise tolerance, and a shoulder diameter tolerance of -0.004" to -0.002" with length 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) for environmental safety, ensuring no hazardous substances in industrial use.
