S-97768A179 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Corrosion Resistance: Crafted from 18-8 stainless steel with a black oxide finish, this screw offers superior protection against rust and wear in harsh industrial environments.
• High Tensile and Shear Strength: With a tensile strength of 70,000 psi and minimum shear strength of 35,000 psi, it ensures reliable, long-lasting performance under heavy loads.
• Precision Thread Fit: Class 3A thread fit guarantees tight tolerances and secure fastening, reducing the risk of loosening in high-vibration applications.
• Easy Installation and Removal: The hex socket head with a 3/32" drive size allows for quick, tool-friendly assembly and disassembly, saving time on the production line.
• Secure Grip and Alignment: The knurled head texture provides enhanced grip during manual handling, while the standard shoulder diameter and length ensure precise component alignment.
• Durable Hardness: Rockwell B55 hardness ensures the screw maintains its shape and integrity, even under repeated stress and mechanical impacts.
• Compliant with Global Standards: Meets RoHS 3 and REACH regulations, making it a safe and sustainable choice for international supply chains and sensitive applications.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. The 18-8 stainless steel construction, combined with a black oxide finish, provides excellent corrosion resistance, ideal for machinery exposed to moisture or chemicals. The Class 3A thread fit and precise 3/16" shoulder length ensure accurate positioning in applications like rotating shafts, bearings, and electronic enclosures, reducing downtime and maintenance costs. Its hex drive socket head and knurled texture facilitate easy installation in tight spaces, while the high tensile and shear strengths support demanding industrial uses, from automotive systems to manufacturing equipment.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with UNC coarse threads for reliable engagement. Dimensions include a shoulder diameter of 3/16" (tolerance: -0.004" to -0.002") and shoulder length of 5/32" (tolerance: -0.005" to 0.005"), ensuring precision in assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, affirming its safety and environmental responsibility for global industrial applications.