S-94731A610 1/4"-20 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 18-8 Stainless Steel construction for long-lasting performance in harsh industrial environments.
- High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precise assembly and alignment enabled by the smooth, standard-fit shoulder with controlled diameter and length tolerances.
- Quick and secure fastening with coarse UNC threads and Class 2A fit, reducing installation time and preventing cross-threading.
- Easy installation and removal using standard tools thanks to the external hex drive and smooth hex head design.
- Enhanced durability from Rockwell B55 hardness, resisting wear and deformation under stress.
- Global regulatory compliance with RoHS 3 and REACH, ensuring safe use in international markets and eco-sensitive projects.
Professional Applications & Engineering Value
This 18-8 Stainless Steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and rotating assemblies. The 1/4"-20 UNC coarse thread and Class 2A thread fit ensure vibration resistance and reliable clamping force, minimizing loosening in high-stress operations. The smooth shoulder with tight tolerances provides exact positioning for components like gears, pulleys, and linkages, reducing misalignment and wear. Its external hex drive allows for efficient torque application, speeding up maintenance and assembly in industrial applications. Made from corrosion-resistant stainless steel, it withstands exposure to moisture, chemicals, and temperature variations, extending service life and reducing downtime.
Specification Summary & Compliance
The screw features a 1/4"-20 UNC thread with Class 2A fit for standard precision, a shoulder diameter of 3/8" (tolerance: -0.004" to 0"), and shoulder length of 1 5/16" (tolerance: -0.005" to 0.005"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
