S-91440A157 6-32 x 1 1/2" ASME B18.6.3 Steel Round Head Combination Phillips/Slotted Screws
Steel Round Head Combination Phillips/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
- Superior corrosion resistance with zinc-plated steel construction, extending service life in humid or demanding environments
- High tensile strength of 60,000 psi ensures reliable load-bearing capacity for heavy-duty industrial applications
- Dual Phillips/Slotted drive options provide installation flexibility with standard tools, reducing assembly time
- Class 2A thread fit with UNC coarse threading delivers smooth engagement and vibration resistance in high-stress scenarios
- Full threading along the 1-1/2" length maximizes grip strength and uniform stress distribution across joined materials
- Rockwell B70 hardness rating maintains structural integrity under repeated mechanical stress
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality consistency and environmental safety for global supply chains
Professional Applications & Engineering Value
Engineered for precision fastening in industrial machinery, construction frameworks, and heavy equipment assembly, these zinc-plated steel screws address critical challenges like material fatigue and environmental degradation. The rounded head design minimizes surface protrusion while the coarse UNC 6-32 threading ensures rapid installation in sheet metal, plastic housings, and structural components. With 60,000 psi tensile strength and Rockwell B70 hardness, they prevent thread stripping under dynamic loads, making them ideal for vibration-prone applications. The dual-drive Phillips/Slotted system accommodates diverse tooling setups, streamlining maintenance and reducing downtime in production environments.
Specification Summary & Compliance
This fully threaded screw maintains Class 2A thread fit tolerances per UNC standards, ensuring precise alignment with mating components. Manufacturing adheres to ASME B18.6.3 specifications for dimensional consistency, while compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms the absence of restricted hazardous substances. The right-hand thread direction and coarse thread spacing provide optimal engagement in wood, metal, and composite substrates.
