S-96669A235 1/4"-20 x 1" ASME B18.3 Sealing Tamper-Resistant Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments.
• Enhanced security and tamper-resistance via the specialized T30 Torx drive, preventing unauthorized access.
• Reliable high-pressure sealing up to 1500 psi with the integrated Buna-N rubber O-ring, ideal for leak-proof assemblies.
• Optimized head design featuring an undercut flat head for a flush, low-profile finish and reduced risk of snagging.
• Wide temperature compatibility from -40 to 225°F, thanks to the Buna-N O-ring, ensuring seal integrity across various conditions.
• Precise and durable threading with UNC coarse threads and Class 2A fit for easy installation and strong, secure fastening.
• Full regulatory compliance with ASME B18.3, RoHS 3, and REACH standards, guaranteeing safety and environmental responsibility.

Professional Applications & Engineering Value

This 1/4"-20 flat head screw is engineered to address critical challenges in industrial and security-focused applications. Its 18-8 stainless steel construction and passivated finish provide exceptional resistance to corrosion, making it suitable for outdoor, marine, or chemical-exposed settings. The tamper-resistant Torx T30 drive ensures that assemblies remain secure against tampering, which is vital for public infrastructure, electronics, and machinery. Additionally, the integrated Buna-N rubber O-ring offers reliable sealing against fluids and gases, preventing leaks in high-pressure systems up to 1500 psi. The undercut flat head design allows for a smooth, countersunk installation, reducing protrusion and improving aesthetics and safety. Ideal for use in industrial fasteners for panels, enclosures, and fluid systems, this screw combines security, durability, and sealing performance to enhance operational reliability.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with a Class 2A thread fit for precise dimensional accuracy and ease of assembly. It is fully threaded for consistent holding strength and manufactured in compliance with ASME B18.3 specifications. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety regulations for hazardous substances.