S-91249A372 1/4"-28 x 1" 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
- Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Secure and precise fastening due to fully threaded UNF fine pitch design and Class 2A thread fit
- Easy installation and removal with Phillips No. 3 drive and rounded pan head design
- Long-term durability in demanding applications thanks to high-quality material and construction
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards
- Consistent dimensional accuracy with standardized inch measurements ensuring proper fit and interchangeability
Professional Applications & Engineering Value
These Black-Oxide 18-8 Stainless Steel rounded head screws deliver exceptional performance in corrosive or high-stress industrial settings. The combination of UNF fine threading and Class 2A thread fit provides vibration resistance and prevents loosening in machinery, automotive assemblies, and electrical enclosures. The Phillips drive with No. 3 size offers efficient torque transmission while the rounded pan head presents a low-profile finish. Engineered to withstand demanding conditions, these screws maintain integrity where moisture, chemicals, or temperature variations would compromise ordinary fasteners, making them ideal for industrial maintenance, manufacturing equipment, and outdoor applications requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
This 1/4"-28 x 1" screw features inch system measurements with Class 2A thread fit tolerance and UNF fine thread specification. Manufacturing complies with ASME B18.6.3 standards for dimensional consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence for global industrial supply chains.
