S-90275A161 6-32 x 2 1/2" ASME B18.6.3 Steel Slotted Flat Head Screws
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 with zinc-plated steel construction, extending service life in demanding industrial environments
- High tensile strength of 60,000 psi ensures reliable fastening under substantial mechanical stress and vibration
- Rockwell B70 hardness rating provides excellent durability and resistance to wear during installation and use
- 82° countersink angle with standard flat head profile enables flush mounting for clean, aerodynamic surfaces
- Class 2A thread fit with UNC coarse threading offers easier assembly and reduced cross-threading risk
- Partial threading design allows for precise clamping force control in multi-material applications
- Slotted drive compatibility ensures broad tool accessibility for maintenance and installation
Professional Applications & Engineering Value
These 6-32 UNC flat head screws deliver critical engineering solutions where surface flushness and structural integrity are paramount. The zinc-plated steel construction combats corrosion in manufacturing facilities, electrical enclosures, and outdoor equipment. With 60,000 psi tensile strength and Rockwell B70 hardness, they maintain clamp load in vibrating machinery and high-stress assemblies. The 82° countersink angle creates seamless joints in sheet metal, automotive panels, and precision instruments. Partial threading prevents over-tightening in composite materials while the UNC coarse thread provides rapid installation in production lines. These industrial screws are engineered to solve alignment challenges and provide long-term fastening reliability.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerances ensuring dimensional accuracy. The UNC coarse thread (6-32) maintains consistent engagement while the 2 1/2" length with partial threading provides versatile fastening options. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for global industrial applications.
