S-94063A833 10-32 x 1" 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 and passivated finish, ideal for harsh environments and extended service life.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing in demanding applications.
• Precise, secure fastening ensured by Class 2A thread fit and fine UNF thread spacing, minimizing the risk of loosening under vibration.
• Flush, low-profile installation with a standard flat head and 82° countersink angle, providing a smooth surface finish.
• Tamper-resistant and specialized drive via the drilled spanner (No. 10 drive size), enhancing security in controlled access areas.
• Full threading for maximum grip along the entire 1" length, ensuring uniform clamping force and stability.
• Regulatory compliance and quality assurance meeting ASME B18.6.3 standards, RoHS 3, and REACH for safe, global industrial use.

Professional Applications & Engineering Value

This 10-32 UNF flat head spanner screw is engineered to address critical fastening challenges in precision machinery, aerospace, and electronic enclosures. The combination of 18-8 stainless steel and a passivated finish provides exceptional resistance to oxidation and chemical exposure, reducing maintenance costs in corrosive settings. The drilled spanner drive offers a tamper-resistant solution for security-sensitive assemblies, while the 82° countersink angle and flat head design ensure a flush fit, preventing snagging and improving aerodynamic or aesthetic profiles. With a fine thread spacing and Class 2A thread fit, it maintains tight tolerances in high-vibration environments, ensuring long-term joint integrity without back-out. Fully threaded for consistent hold, this screw is a reliable choice for OEMs and MRO professionals seeking durability and compliance in industrial applications.

Specification Summary & Compliance

This screw features a 10-32 UNF thread with Class 2A thread fit and fine thread spacing, ensuring precise dimensional accuracy per inch system standards. The head diameter tolerance is controlled between -0.022" to 0.023" for consistent seating. It is manufactured in compliance with ASME B18.6.3 specifications and is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for industrial components.