S-91249A367 1/4"-20 x 1 3/4" 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 environments and reducing replacement costs.
- High tensile strength of 70,000 PSI ensures reliable load-bearing capacity and structural integrity in demanding applications.
- Rockwell B70 hardness provides excellent wear resistance and durability, minimizing thread damage during installation.
- Fully threaded UNC coarse spacing delivers faster installation and enhanced grip in a variety of materials.
- Class 2A thread fit guarantees consistent, easy assembly with standard nuts and tapped holes.
- No. 3 Phillips drive and rounded pan head offer secure tool engagement and a low-profile finish for streamlined assemblies.
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures product reliability and meets global environmental and safety standards.
Professional Applications & Engineering Value
Engineered for industrial and commercial settings, these Black-Oxide 18-8 Stainless Steel screws address common challenges like corrosion and mechanical stress. The rounded pan head and Phillips drive facilitate quick, secure fastening in confined spaces, while the fully threaded UNC coarse design ensures strong holding power in metal, plastic, and wood assemblies. With a tensile strength of 70,000 PSI and Rockwell B70 hardness, they resist loosening under vibration and heavy loads, making them ideal for machinery, electrical enclosures, and outdoor equipment. The Black-Oxide coating enhances surface protection, extending service life in humid or chemical-exposed environments, and supports efficient B2B procurement with consistent performance.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and UNC coarse threading with a size of 1/4"-20 and length of 1 3/4". It is manufactured in accordance with ASME B18.6.3 standards for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
