S-90275A257 10-24 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, extending service life in harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable fastening under heavy loads and vibration
- Rockwell B70 hardness provides excellent wear resistance and maintains thread integrity during installation
- UNC coarse threading with Class 2A fit enables quick assembly and reduces cross-threading risks
- 82° countersink angle with standard flat head profile creates flush surface finishes for streamlined applications
- Fully threaded 3" length offers maximum grip range and adjustment flexibility
- Slotted drive design allows compatibility with standard tools for easy installation and maintenance
Professional Applications & Engineering Value
These zinc-plated steel flat head screws deliver critical performance advantages for industrial assembly applications where surface flushness and corrosion protection are paramount. The combination of UNC coarse threading and Class 2A thread fit ensures rapid installation while minimizing the risk of thread damage in production environments. The 82° countersink angle provides optimal seating in tapered holes, creating smooth surfaces that prevent snagging in machinery and equipment. With 60,000 psi tensile strength and Rockwell B70 hardness, these screws maintain clamping force under vibration and load variations, making them ideal for heavy-duty applications in manufacturing, construction, and machinery assembly where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerances and UNC coarse thread specifications. Fully compliant with ASME B18.6.3 manufacturing standards ensuring interchangeability and quality consistency. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for safe use in regulated industries. The inch system measurements guarantee compatibility with North American machinery and equipment specifications.
