S-97705A228 4-40 x 3/16" QQ-P-35, MS51021-10 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Maximum holding power achieved through the cup point design that bites into surfaces securely
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening
• Easy installation in confined spaces using the 0.050" hex drive headless design
• Quick assembly efficiency with coarse UNC thread spacing reducing installation time
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe usage
• Interchangeable reliability conforming to Fed. Spec. QQ-P-35 (MS51021-10) for consistent quality

Professional Applications & Engineering Value

This 4-40 UNC thread set screw delivers exceptional engineering value in applications requiring secure positioning and alignment. The 18-8 stainless steel material provides excellent corrosion resistance, making it ideal for machinery, electronics, and automotive components exposed to moisture or chemicals. The hex drive configuration allows for high torque application in limited spaces, while the cup point creates permanent seating by embedding into mating surfaces, preventing loosening under vibration. With Class 3A thread fit and coarse thread spacing, these set screws ensure rapid installation and reliable performance in production environments where precision and durability are critical.

Specification Summary & Compliance

This set screw features precision 4-40 UNC threads with Class 3A thread fit for superior dimensional accuracy. Manufacturing conforms to Fed. Spec. QQ-P-35 (MS51021-10) ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for use across various industrial sectors without restriction concerns.