S-95861A133 1/4"-20 x 1" Venting Stainless Steel Button Head Hex-Drive Screws
Venting Stainless Steel Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B81 hardness for reliable load-bearing performance
- Precise thread engagement through Class 3A thread fit and UNC coarse spacing, ensuring secure fastening in demanding applications
- Efficient installation and removal with 5/32" hex drive design, reducing assembly time and tool slippage
- Enhanced pressure equalization via vented feature with 0.072" diameter, preventing pressure buildup in sealed systems
- Full threading coverage across the 1" length, providing consistent clamping force and vibration resistance
- Regulatory compliance assurance with RoHS 3 and REACH standards, meeting global environmental and safety requirements
Professional Applications & Engineering Value
This 18-8 stainless steel rounded head screw delivers critical performance in industrial settings where corrosion resistance and mechanical integrity are paramount. The UNC coarse thread with Class 3A fit ensures rapid assembly and reliable thread engagement in materials prone to vibration loosening. The hex drive configuration provides superior torque transmission compared to standard drives, while the vented design addresses pressure differential issues in enclosed systems. Engineered for machinery, automotive, and electrical enclosures, this fully threaded screw maintains consistent clamping force across its entire length, preventing joint failure in high-stress applications.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse spacing (1/4"-20), ensuring interchangeability and reliable performance. The screw meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, confirming adherence to international environmental regulations. With a hardness rating of Rockwell B81 and 80,000 psi tensile strength, this fastener exceeds typical industrial demands for durability and load capacity.
