S-91781A712 1/2"-13 x 1" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws
Stainless Steel Slotted Flat 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
- Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for demanding industrial applications.
- Reliable and precise fastening achieved through Class 2A thread fit and UNC coarse threading, providing secure installation and vibration resistance.
- Optimized for flush mounting with a standard flat head profile and 82° countersink angle, ideal for applications requiring a smooth surface finish.
- Broad compatibility and ease of use with a standard slotted drive, allowing for quick installation with common tools.
- Full thread engagement along the 1" length ensures maximum grip and load distribution in assembled components.
- Compliance with major industry standards including ASME B18.6.3, guaranteeing consistent quality and dimensional accuracy.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these 1/2"-13 UNC flat head slotted screws address critical challenges in machinery assembly, structural frameworks, and equipment manufacturing. The 18-8 stainless steel material combined with a passivated finish provides excellent resistance to oxidation and chemical exposure, significantly reducing maintenance costs and downtime in corrosive environments. The coarse UNC threads and Class 2A fit ensure rapid, secure fastening even in materials prone to stripping, while the flat head design allows for seamless integration where protrusions are not permissible. These screws deliver reliable performance in automotive, construction, and marine sectors, where high tensile strength and corrosion resistance are non-negotiable for long-term operational integrity.
Specification Summary & Compliance
This flat head screw features a 1/2"-13 UNC thread size with Class 2A thread fit for precise dimensional tolerances. It is manufactured in accordance with ASME B18.6.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use across global markets.
