S-97832A220 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Precise alignment and smooth rotation enabled by the 3" shoulder with tight tolerances for reduced wear and vibration
• Superior thread reliability with Class 3A fit ensuring secure, vibration-resistant fastening in high-stress applications
• High-strength durability offering 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty mechanical assemblies
• Secure, slip-resistant installation via hex socket drive and knurled head for easy torque application and handling
• Broad compatibility with UNC coarse threads and right-hand direction for versatile use across standard industrial equipment
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe, environmentally responsible manufacturing

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in precision assemblies. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it ideal for machinery exposed to moisture, chemicals, or outdoor conditions. The 3-inch shoulder acts as a precise pivot or spacer, reducing friction and maintaining component alignment in rotating parts like gears, pulleys, and linkages. With a Class 3A thread fit and coarse UNC threading, it ensures rapid assembly and high vibration resistance, minimizing loosening in dynamic systems. The socket head with hex drive allows for compact installation in confined spaces, while the knurled texture enhances grip during manual handling. These features make it a reliable choice for automotive, aerospace, and industrial automation applications where precision, strength, and durability are paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precise, secure fastening. Dimensions include a shoulder diameter of 3/16" (tolerance: -0.004" to -0.002") and shoulder length of 3" (tolerance: -0.005" to 0.005"), ensuring consistent performance in high-tolerance assemblies. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industries and environmentally conscious procurement.