S-90400A199 8-32 x 1" ASME B18.13 Steel Pan Head Phillips Screws with Spring Lock Washer
Steel Pan Head Phillips Screws with Spring Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior vibration resistance with integrated spring lock washer that maintains clamping force in high-stress environments
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in industrial conditions
- High-strength performance with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Reliable thread engagement with UNC coarse threads and Class 2A fit ensuring consistent fastening performance
- Optimized drive efficiency through Phillips No. 2 drive design for secure torque transmission
- Complete thread coverage with fully threaded shank providing maximum holding power along the entire length
- Regulatory compliance assurance meeting ASME B18.13 standards and environmental regulations
Professional Applications & Engineering Value
These zinc-plated steel pan head screws with integrated spring lock washers deliver exceptional engineering value in industrial settings where vibration-induced loosening compromises assembly integrity. The UNC coarse thread design combined with Class 2A thread fit ensures rapid installation and reliable performance in materials where fine threads might strip or fail. The fully threaded 8-32 configuration provides maximum grip length, while the zinc-plated finish offers corrosion resistance critical for manufacturing equipment, machinery assemblies, and outdoor applications. The Phillips drive system enables efficient installation with standard tools, making these rounded head screws ideal for production environments requiring both speed and reliability.
Specification Summary & Compliance
This fastener features precision UNC coarse threads with Class 2A thread fit tolerance, ensuring consistent engagement and reliable performance. Manufacturing complies with ASME B18.13 specifications for dimensional accuracy and quality. The product is fully RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements regarding substance restrictions, making it suitable for global industrial applications with environmental regulations.
