S-90275A583 5/16"-18 x 1" ASME B18.6.3 Steel Slotted Flat Head Screws
Steel Slotted Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- Exceptional holding power with 60,000 psi tensile strength and Rockwell B70 hardness for reliable fastening performance
- Optimized thread engagement through Class 2A fit UNC coarse threads ensuring secure connections in various materials
- Streamlined installation with standard 82° countersink angle allowing flush mounting in prepared surfaces
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices
- Full-thread design providing maximum grip along the entire 1" length for enhanced load distribution
Professional Applications & Engineering Value
These zinc-plated steel flat head screws deliver critical performance advantages in industrial assembly applications where flush mounting and corrosion resistance are paramount. The combination of UNC coarse threading with Class 2A fit ensures rapid installation and reliable fastening in wood, metal, and composite materials, while the 82° countersink angle provides a clean, professional finish. Engineered with 60,000 psi tensile strength and Rockwell B70 hardness, these fully threaded screws maintain integrity under vibration and load stress, making them ideal for machinery, equipment manufacturing, and structural applications requiring durable fastening solutions.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse thread spacing (5/16"-18) and standard flat head profile. Complies with ASME B18.6.3 mechanical specifications and maintains conformity with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features right-hand threading and fully threaded 1" length for consistent performance across industrial applications.
