S-91249A721 12-24 x 5/8" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips 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
- Exceptional corrosion resistance with Black-Oxide coated 18-8 stainless steel construction, ideal for harsh industrial environments
- Superior mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-lasting fastening
- Optimized installation efficiency with Phillips No. 3 drive and fully threaded design for quick, secure assembly
- Precise thread engagement ensured by UNC coarse threads with Class 2A fit, reducing cross-threading risks
- Enhanced durability in demanding applications thanks to the rounded pan head design that distributes load evenly
- Compliance with major industry standards including ASME B18.6.3, ensuring consistent quality and performance
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
These 12-24 UNC coarse thread screws are engineered to address common industrial fastening challenges, including vibration loosening and corrosion-induced failure. The Black-Oxide 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making these rounded head screws suitable for outdoor equipment, marine applications, and machinery exposed to moisture. The fully threaded design and Class 2A thread fit ensure maximum grip and uniform stress distribution, reducing the risk of joint failure in high-stress assemblies. With a Phillips No. 3 drive, installation is streamlined for production lines, while the pan head profile offers a low-profile, secure fastening solution for sheet metal, enclosures, and structural components where reliability is critical.
Specification Summary & Compliance
This screw features precise 12-24 UNC coarse threads with Class 2A tolerance for consistent fit and performance. Manufacturing adheres to ASME B18.6.3 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for global industrial and electronic applications.
