S-90283A847 1/4"-28 x 1" ASME B18.6.3 Steel Pan Head Slotted Screws
Steel Pan Head Slotted 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
- Enhanced corrosion resistance through zinc-plated steel construction, extending service life in demanding industrial environments
- Superior load-bearing capability with 60,000 psi tensile strength for reliable performance under high-stress applications
- Precision thread engagement with Class 2A UNF fine threads ensuring secure, vibration-resistant fastening
- Optimized drive efficiency featuring slotted pan head design for straightforward installation with standard tools
- Consistent mechanical properties maintained through Rockwell B60 hardness for dependable performance across applications
- Full-threaded design providing maximum grip length and uniform stress distribution along the entire fastener
- Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These zinc-plated steel slotted pan head screws deliver critical engineering solutions for industrial assembly challenges. The combination of UNF fine threading and Class 2A thread fit ensures precise alignment and vibration resistance in machinery, automotive components, and electrical enclosures. The rounded head profile with slotted drive accommodates standard installation tools while providing a low-profile finish. The zinc plating creates a protective barrier against oxidation and corrosion, significantly extending service life in humid or chemically aggressive environments. With full threading along the entire 1" length, these fasteners distribute clamping forces evenly, preventing stress concentration and maintaining joint integrity in high-vibration applications where reliable industrial fastening is paramount.
Specification Summary & Compliance
Manufactured to exacting inch system dimensions with 1/4"-28 UNF fine threads maintaining Class 2A tolerance for consistent fit and performance. These slotted pan head screws conform to ASME B18.6.3 mechanical and dimensional specifications, ensuring interchangeability and reliability. Environmental compliance is verified through RoHS 3 (2015/863/EU) adherence and REACH (EC 1907/2006) regulation compliance, confirming the absence of restricted substances for global market acceptance.
