S-93615A409 1/4"-20 x 7/16" 18-8 Stainless Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Exceptional thread precision with Class 3A fit, ensuring secure, vibration-resistant connections and reduced risk of cross-threading.
• High tensile strength of 70,000 psi provides reliable performance under significant mechanical stress and load.
• Low profile socket head design allows for installation in tight spaces and offers a sleek, flush finish.
• Consistent hardness (Rockwell B70) maintains fastener integrity and prevents deformation during installation and use.
• Fully threaded shank offers maximum grip and uniform clamping force along the entire length.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for regulated industries.

Professional Applications & Engineering Value

This 1/4-20 UNC Thread Low Profile Socket Head Cap Screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor conditions, such as marine equipment, food processing machinery, and automotive components. The Class 3A thread fit and coarse thread spacing ensure quick assembly and high resistance to loosening under vibration, which is essential in dynamic industrial environments. The low profile head and 1/8 inch hex drive facilitate easy installation in confined spaces, reducing assembly time and improving aesthetics. With a tensile strength of 70,000 psi and Rockwell B70 hardness, this fastener maintains reliability in high-stress applications, from aerospace to electronic enclosures, ensuring long-term performance and reduced maintenance needs.

Specification Summary & Compliance

This socket head cap screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy and superior engagement. It features a right-hand thread direction and coarse thread spacing, manufactured in accordance with inch system requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for hazardous substances.