S-90220A120 1/4"-20 x 3/4" Vented Hex Head Screws
Vented Hex Head 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 and outdoor applications.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Rockwell B70 hardness provides excellent durability and wear resistance, reducing the risk of stripping or deformation.
- UNC coarse threading with Class 2A fit allows for quick, easy installation and secure fastening in various materials.
- Vented design (0.062" vent diameter) prevents pressure buildup and facilitates easier driving in specialized applications.
- External hex drive and fully threaded shank offer maximum torque application and consistent grip along the entire length.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets international standards for industrial use.
Professional Applications & Engineering Value
These 18-8 stainless steel hex head screws are engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The UNC coarse thread design ensures rapid assembly in metals, plastics, and composite materials, reducing installation time while maintaining a secure Class 2A thread fit. The fully threaded and vented features allow for even pressure distribution and air escape, making them ideal for machinery, automotive assemblies, and electrical enclosures where reliability and corrosion resistance are critical. With a tensile strength of 70,000 psi, they provide long-term performance in demanding applications without compromising on safety or efficiency.
Specification Summary & Compliance
This screw adheres to UNC coarse thread standards with precise Class 2A thread fit tolerances for consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial markets. The dimensions include a 1/4"-20 thread size, 3/4" length, and external hex drive, manufactured to deliver reliable fastening in accordance with industry specifications.
