S-90276A550 1/4"-20 x 2" ASME B18.6.3 Steel Round Head Slotted Screws
Steel Round 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
- 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 heavy loads and vibration
- Rockwell B69 hardness provides excellent durability and resistance to wear during installation and use
- Class 2A thread fit with UNC coarse threading offers easier assembly and reduced cross-threading risks
- Full threading along the 2" length allows maximum grip and adjustability in various material thicknesses
- Slotted drive with rounded head enables quick installation while providing a finished appearance
- Compliance with major industry standards ensures consistent quality and regulatory acceptance
Professional Applications & Engineering Value
This zinc-plated steel rounded head screw delivers exceptional performance in industrial settings where corrosion resistance and structural integrity are paramount. The UNC coarse thread design prevents binding in soft materials while maintaining strong holding power, making it ideal for machinery assembly, equipment manufacturing, and structural applications. The combination of 60,000 psi tensile strength and Rockwell B69 hardness ensures these screws withstand dynamic loads and repeated stress without failure. The slotted drive system provides reliable torque transmission while the rounded head profile distributes clamping force evenly, preventing surface damage. These fully threaded screws offer versatile fastening solutions across multiple industries including automotive, construction, and heavy equipment manufacturing.
Specification Summary & Compliance
This product features precise Class 2A thread fit with UNC coarse threading (1/4"-20) and right-hand thread direction, manufactured to exact dimensional standards. The screw meets ASME B18.6.3 specifications for dimensional accuracy and performance requirements. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance adherence. With a length of 2" and full threading, this fastener delivers consistent performance across industrial applications requiring reliable, high-strength fastening solutions.
