S-90340A111 1/4"-20 x 1/2" Socket Head Screws for Square-Drive Wrenches
Socket Head Screws for Square-Drive Wrenches
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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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Superior thread engagement through Class 3A thread fit for precise, vibration-resistant assemblies
- High tensile strength of 70,000 PSI ensures reliable performance under heavy mechanical loads
- Optimized drive efficiency with 1/4" square drive and high-profile socket head for maximum torque transfer
- Full thread coverage along the 1/2" length provides consistent clamping force distribution
- Rockwell B84 hardness maintains dimensional stability and prevents thread deformation
- Regulatory compliance with RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
These 1/4-20 UNC Socket Head Cap Screws deliver critical performance advantages in demanding applications where reliability and precision are paramount. The 18-8 Stainless Steel composition provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements. The Class 3A thread fit ensures tight tolerances that prevent loosening in high-vibration environments such as automotive assemblies, industrial equipment, and precision manufacturing systems. With 70,000 PSI tensile strength and Rockwell B84 hardness, these fasteners maintain structural integrity under sustained mechanical stress. The square drive design combined with the high-profile socket head allows for maximum torque application without stripping, making them ideal for confined spaces in aerospace components, heavy machinery, and automated production lines where access is limited but high clamping forces are required.
Specification Summary & Compliance
This socket head cap screw features precision 1/4"-20 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. The fastener maintains right-hand thread direction and fully threaded construction along its 1/2" length. Manufacturing compliance includes adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring these components meet international standards for industrial applications requiring chemical restriction compliance.
