S-91737A128 8-32 x 5/8" ASME B18.6.3 Stainless Steel Fillister Head Phillips Screws
Stainless Steel Fillister 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable, long-lasting fastening under demanding mechanical loads.
- Excellent drive engagement with Phillips No. 2 drive style, reducing cam-out and enabling efficient installation.
- Optimized thread design with 8-32 UNC coarse threading and Class 2A fit for quick assembly and secure holding power.
- Durable rounded fillister head provides a low-profile, narrow design that sits flush and resists snagging.
- Full threading along the 5/8" length allows for maximum adjustability and grip in various material thicknesses.
- Consistent hardness (Rockwell B85) maintains structural integrity and prevents deformation during tightening.
Professional Applications & Engineering Value
This 8-32 UNC machine screw is engineered to address common industrial challenges such as vibration loosening and environmental degradation. The 18-8 stainless steel material, combined with a passivated finish, offers exceptional resistance to rust and chemical exposure, making it suitable for applications in electronics, machinery, and outdoor equipment. The coarse UNC thread and fully threaded design ensure rapid installation and robust retention in softer materials or where high pull-out strength is required. The rounded fillister head with a Phillips drive facilitates easy access in confined spaces while maintaining a sleek profile. These features collectively reduce maintenance frequency and enhance the reliability of assembled components in industrial screws and stainless steel fasteners applications.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including Class 2A thread fit for consistent assembly and UNC coarse threading per industry norms. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring interoperability and safety. Additionally, the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming its environmental and health safety for global supply chains.
