S-90275A595 5/16"-18 x 3" 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 for extended service life in harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B70 hardness provides excellent durability and resistance to wear during installation and use
- Class 2A thread fit offers optimal assembly efficiency while maintaining secure fastening integrity
- 82° countersink angle enables flush mounting for clean, professional finishes in various applications
- Fully threaded UNC coarse spacing delivers faster installation and superior holding power in diverse materials
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality and environmental responsibility
Professional Applications & Engineering Value
These zinc-plated steel flat head screws with UNC coarse thread spacing are engineered to address critical industrial fastening challenges. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in demanding applications where vibration resistance and structural integrity are paramount. The fully threaded design with Class 2A fit provides consistent engagement depth across various materials, while the 82° countersink angle creates seamless flush mounting in metal fabrication, machinery assembly, and structural frameworks. Ideal for industrial maintenance, equipment manufacturing, and construction projects, these slotted drive screws offer exceptional value through reduced installation time and long-term reliability in corrosive environments.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread spacing (5/16"-18), these screws maintain strict adherence to ASME B18.6.3 specifications. The zinc-plated steel construction delivers consistent performance with a tensile strength of 60,000 psi and Rockwell B70 hardness. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety. The standard 82° countersink angle and flat head profile meet industry requirements for flush mounting applications across various sectors.
