S-94063A320 10-32 x 3/8" ASME B18.6.3 Tamper-Resistant Drilled Spanner Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh environments.
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under demanding loads.
• Precise Class 2A thread fit guarantees smooth installation and secure engagement in fine-thread applications.
• Drilled spanner drive design provides tamper-resistant installation and removal, enhancing security.
• 82° countersink angle allows for a flush, low-profile finish, reducing snagging and improving aesthetics.
• Full threading along the 3/8" length offers maximum grip and adjustability in various material thicknesses.
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met.

Professional Applications & Engineering Value

This 10-32 UNF flat head spanner screw is engineered to address critical challenges in precision assembly and industrial maintenance. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to corrosion and oxidation, making it suitable for applications in marine, chemical processing, and outdoor equipment where moisture and chemicals are present. The drilled spanner drive offers a tamper-resistant solution, ideal for security-focused installations in electronics, machinery, and public infrastructure. With a fine thread (UNF) and Class 2A fit, it ensures tight, vibration-resistant connections in components requiring high precision, such as aerospace instruments or automotive systems. The flat head design with an 82° countersink minimizes protrusion, reducing the risk of injury and improving aerodynamic or aesthetic profiles in consumer products and industrial enclosures.

Specification Summary & Compliance

This screw adheres to precise dimensional tolerances, including a Class 2A thread fit for consistent engagement and a head diameter tolerance of -0.045" to 0". It conforms to ASME B18.6.3 standards for mechanical and dimensional integrity, ensuring reliability in industrial applications. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substance restrictions. The specifications cover a thread size of 10-32 UNF, length of 3/8", and full threading, supporting use in regulated sectors like electronics and machinery manufacturing.