S-98511A203 4-40 x 3/16" Aluminum Socket Head Screws
Aluminum 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 blue-anodized coating that protects against industrial wear and environmental exposure
- Exceptional strength-to-weight ratio from premium 7075 aluminum, ideal for weight-sensitive applications without sacrificing durability
- Precise Class 3A thread fit ensures tighter tolerances and reliable fastening in high-vibration environments
- Easy installation with hex drive using standard 3/32" tools, reducing assembly time and tool slippage risks
- Coarse UNC threading provides quicker engagement and reduced cross-threading in repetitive assembly operations
- Full compliance with RoHS 3 and REACH for safe use in regulated industries and international supply chains
- Compact 3/16" length offers space-saving design for tight-clearance mechanical assemblies
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these blue-anodized 7075 aluminum socket head cap screws deliver critical advantages where corrosion resistance and lightweight strength are paramount. The UNC coarse thread design enables rapid installation in automated assembly lines while maintaining secure connections in vibration-prone equipment. With Class 3A thread fit precision, these fasteners eliminate play in precision instruments, electronic enclosures, and aerospace components where dimensional stability is crucial. The anodized surface treatment provides an additional barrier against chemical exposure and electrical insulation properties, making these screws ideal for marine, automotive, and electronics applications requiring reliable performance under stressful conditions.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit tolerances and UNC coarse threading specifications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial applications. Standard socket head profile with hex drive compatibility maintains consistency with existing fastener systems and tooling requirements.
