S-97690A181 1/4"-20 x 1" ASME B18.6.3 Steel Pan Head Torx Screws

Key Features & Benefits at a Glance

• Superior torque transmission with T30 Torx drive prevents cam-out and tool slippage for faster, more secure installations
• Enhanced corrosion resistance through zinc-plated steel construction with black painted finish for extended service life in demanding environments
• Optimized thread engagement with Class 2A UNC coarse threads ensures reliable fastening and vibration resistance
• Consistent mechanical performance maintained through Rockwell B70 hardness for dependable strength in heavy-duty applications
• Maximum fastening versatility with fully threaded design allowing adjustable positioning along the entire screw length
• Reduced installation time with rounded pan head profile that provides excellent driver accessibility in confined spaces
• Regulatory compliance assurance meeting ASME B18.6.3 specifications for guaranteed dimensional accuracy and performance

Professional Applications & Engineering Value

These zinc-plated steel rounded head screws deliver exceptional value in industrial assembly where corrosion resistance and high-torque capability are critical. The T30 Torx drive system eliminates common installation issues like screw head stripping, particularly valuable in automated assembly lines where consistent torque application is essential. The 1/4"-20 UNC coarse thread configuration provides rapid installation and superior holding power in various materials, from metal fabrications to heavy equipment assemblies. The black painted finish enhances both aesthetic appeal and additional corrosion protection, making these fully threaded fasteners ideal for applications requiring both structural integrity and visual consistency across assembled products.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (1/4"-20) and right-hand thread direction. Fully compliant with ASME B18.6.3 manufacturing specifications ensuring dimensional accuracy and performance reliability. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe use across global markets. The Rockwell B70 hardness rating guarantees consistent mechanical properties throughout the fastener's service life.