S-90303A030 6-32 x 3/8" ASME B18.3, ASTM A574 Nylon-Tip Alloy Steel Socket Head Screws
Nylon-Tip Alloy Steel 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
- Non-marring nylon tip prevents surface damage during assembly and disassembly, ideal for sensitive applications
- High tensile strength of 180,000 psi ensures reliable load-bearing capacity and resistance to mechanical failure
- Black-oxide finish on alloy steel provides corrosion resistance and enhanced durability in harsh environments
- Precision Class 3A thread fit guarantees tight tolerances and secure fastening with minimal backlash
- Wide temperature range (-50° to 250°F) allows stable performance in extreme thermal conditions
- ASME B18.3 compliance ensures dimensional accuracy and interchangeability with standard components
- Hex socket drive design enables easy installation with standard tools, reducing assembly time
Professional Applications & Engineering Value
This 6-32 UNC thread socket head cap screw is engineered for precision assemblies where surface protection and high strength are critical. The black-oxide alloy steel construction, combined with a Rockwell C39 hardness, offers superior resistance to wear and environmental factors, making it suitable for automotive, aerospace, and electronic enclosures. The integrated nonmarring nylon tip eliminates scratching on delicate materials like anodized aluminum or painted surfaces, while the coarse thread spacing ensures quick installation and vibration resistance. Ideal for machinery, fixtures, and consumer electronics, this fastener solves common issues of component damage and loosening under dynamic loads, enhancing product longevity and reliability.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit per UNC standards, ensuring precise engagement and consistent performance. Manufactured in compliance with ASME B18.3 specifications, it meets strict dimensional and mechanical requirements. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, confirming the absence of hazardous substances and supporting environmental safety in industrial applications.
