S-91249A620 5-40 x 1/2" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity in demanding applications
- Fully threaded UNC coarse thread design provides superior holding power and faster installation
- Pan head with Phillips No. 2 drive offers secure tool engagement and flush mounting capability
- Class 2A thread fit guarantees consistent assembly performance and interchangeability
- Comprehensive regulatory compliance meets ASME B18.6.3, RoHS 3, and REACH standards for global industrial use
- Rounded head profile reduces surface damage and improves safety during handling
Professional Applications & Engineering Value
This 5-40 UNC coarse thread machine screw delivers critical engineering advantages through its Black-Oxide 18-8 Stainless Steel composition and precision pan head design. The combination provides exceptional corrosion resistance for electrical enclosures, marine hardware, and outdoor equipment where moisture exposure is common. The fully threaded configuration ensures maximum thread engagement in thin materials and plastic assemblies, while the Phillips No. 2 drive enables efficient installation in confined spaces. With 70,000 psi tensile strength, these rounded head screws maintain structural integrity in vibration-prone applications such as machinery guards, automotive components, and industrial control panels, offering reliable fastening performance where failure is not an option.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent dimensional accuracy. The 5-40 UNC coarse thread maintains standard interchangeability, while the Black-Oxide surface treatment enhances durability. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
