S-90843A150 1/4"-20 x 1/2" Cleaned and Bagged 18-8 Stainless Steel Socket Head Screws for High Vacuum
Cleaned and Bagged 18-8 Stainless Steel Socket Head Screws for High Vacuum
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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 silver-plated 18-8 stainless steel construction, ideal for harsh industrial environments and high-vacuum applications.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Hex socket drive design allows for easy installation with standard tools, reducing assembly time and improving accessibility in confined spaces.
- Fully threaded shank offers consistent engagement along the entire length, enhancing grip and load distribution.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards for hazardous substance control.
- Coarse UNC threads enable quick assembly and disassembly, reducing the risk of cross-threading in high-volume production settings.
Professional Applications & Engineering Value
This silver-plated 18-8 stainless steel socket head cap screw is engineered to address common industrial challenges, such as corrosion in humid or chemical-exposed environments. The Class 3A UNC thread ensures a precise, secure fit that minimizes loosening under vibration, making it ideal for machinery, automotive, and aerospace assemblies. With a high vacuum rating, it performs reliably in sealed systems like vacuum chambers or medical equipment, while the 70,000 psi tensile strength and Rockwell B70 hardness provide durability against mechanical stress. Its hex drive and fully threaded design streamline installation, reducing labor costs and enhancing efficiency in B2B procurement for OEMs and maintenance teams.
Specification Summary & Compliance
This screw adheres to UNC coarse thread standards with a Class 3A fit for high precision. Dimensions include a 1/4"-20 thread size, 1/2" length, and 3/16" hex drive. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances are used. Manufactured to meet industrial specifications for strength and vacuum performance.
