S-98511A621 1/4"-20 x 5/8" 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 strength-to-weight ratio with 2024 aluminum construction for reduced component weight without sacrificing durability in demanding applications
- Precise Class 3A thread fit ensures tight tolerances and reliable engagement for vibration-resistant assemblies
- 3/16" hex drive socket provides secure tool engagement and high torque transmission during installation
- 1/4"-20 UNC coarse threads deliver faster assembly and reduced cross-threading risks in industrial settings
- Fully threaded 5/8" length offers maximum adjustability and consistent clamping force along the entire fastener
- Right-hand thread direction enables standard installation procedures for maintenance efficiency
- Environmental compliance with RoHS 3 and REACH regulations ensures safe use in regulated industries
Professional Applications & Engineering Value
Engineered for precision machinery and aerospace applications where weight reduction is critical, these 2024 aluminum socket head cap screws provide exceptional performance in corrosive environments. The Class 3A UNC thread fit maintains precise dimensional stability under thermal cycling and vibration, preventing loosening in dynamic assemblies. The 3/16" hex drive accommodates standard industrial tools while the coarse 1/4"-20 thread pitch ensures rapid installation in production environments. These fully threaded fasteners distribute clamping force evenly across the entire 5/8" length, making them ideal for electronic enclosures, automotive components, and precision instrument manufacturing where reliability and regulatory compliance are paramount.
Specification Summary & Compliance
Manufactured to UNC thread standards with Class 3A precision tolerance for consistent thread engagement. Features right-hand coarse threads with 1/4"-20 thread specification and 3/16" hex drive compatibility. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial applications requiring certified materials.
