S-93235A108 4-40 x 3/8" Vented Socket Head Screws
Vented Socket 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 environments and reducing replacement frequency.
- High tensile strength of 70,000 psi ensures reliable performance under significant load and stress in demanding applications.
- Precise Class 3A thread fit provides excellent engagement and vibration resistance, minimizing the risk of loosening.
- Vented design with 0.035" diameter allows for pressure equalization, preventing fluid or air lock during installation.
- Fully threaded body offers maximum grip and adjustability along the entire length for versatile fastening solutions.
- Hex socket drive (3/32") enables high-torque installation with standard tools, reducing cam-out and head stripping.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global industrial markets.
Professional Applications & Engineering Value
This 4-40 UNC Socket Head Cap Screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material provides excellent resistance to oxidation and chemical exposure, making it suitable for industrial applications in automotive, aerospace, and electronics where durability is paramount. Its coarse UNC threads and Class 3A fit ensure quick, secure fastening with high repeatability, reducing assembly time and maintenance costs. The vented feature prevents pressure buildup, which is essential in sealed systems or when used with adhesives. Combined with a Rockwell B70 hardness, this screw maintains integrity under vibration and thermal cycling, offering long-term reliability for high-strength fastening needs.
Specification Summary & Compliance
This socket head cap screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It features a right-hand coarse thread with a size of 4-40 and a length of 3/8", fully threaded for consistent performance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for various industrial and export requirements.
