S-90273A297 12-24 x 7/8" ASME B18.6.3 Steel Phillips Flat Head Screws
Steel Phillips 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 with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments
- High tensile strength of 60,000 psi provides exceptional load-bearing capacity for demanding applications
- Precision-engineered UNC coarse threads deliver faster installation and reduced cross-threading risks
- Standard 82° countersink angle enables flush mounting for clean, professional finishes
- Class 2A thread fit guarantees consistent mating with standard nuts and threaded components
- Rockwell B70 hardness rating maintains structural integrity under vibration and stress
- Full compliance with ASME B18.6.3 ensures dimensional accuracy and interchangeability
Professional Applications & Engineering Value
These 12-24 UNC flat head screws with zinc-plated steel construction address critical challenges in assembly operations where corrosion resistance and structural integrity are paramount. The coarse thread design significantly reduces installation time while providing superior holding power in materials prone to stripping. The 82° countersink angle and flat head profile create seamless surface finishes essential for automotive panels, machinery housings, and electrical enclosures. With Phillips No. 3 drive compatibility, these fasteners offer widespread tool accessibility across manufacturing facilities. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes them ideal for vibration-prone applications in industrial equipment, ensuring maintained clamp load under dynamic operating conditions.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerances for consistent performance. These fully threaded screws feature UNC coarse threads (12-24) with right-hand direction and standard flat head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across global markets.
