S-91900A144 6-32 x 1/4" ASME B18.3 Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with Torx T10 drive design, deterring unauthorized access in public or high-security environments.
• Superior corrosion resistance from 18-8 stainless steel and passivated finish, ideal for harsh or humid industrial settings.
• High mechanical strength with 70,000 PSI tensile strength and Rockwell B70 hardness, ensuring reliable performance under stress.
• Precise thread engagement with UNC coarse threads and Class 3A fit, reducing cross-threading and enabling quick assembly.
• Low-profile rounded head provides a smooth finish, minimizing snagging and improving aesthetics in visible applications.
• Full threading along the 1/4" length allows for consistent clamping force and versatile use in various material thicknesses.
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 6-32 x 1/4" stainless steel rounded head screw is engineered to address critical challenges in industrial and security-focused applications. The tamper-resistant Torx T10 drive prevents casual tampering, making it ideal for securing enclosures, machinery, and electronic housings where unauthorized access is a concern. Constructed from 18-8 stainless steel with a passivated finish, it offers excellent resistance to oxidation and chemical exposure, extending service life in demanding environments like outdoor equipment, marine hardware, or food processing facilities. The UNC coarse threading and Class 3A thread fit ensure rapid installation with reduced risk of stripping, while the rounded button head design minimizes protrusion for safer, cleaner assemblies. These features combine to deliver a reliable industrial fastener that enhances both security and durability in professional settings.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 3A thread fit for superior accuracy and UNC coarse threading (6-32 size) on a 1/4" length. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free of hazardous substances and suitable for global industrial use.