S-90275A201 8-32 x 1 1/4" 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 demanding industrial environments
- Exceptional tensile strength rated at 60,000 psi ensures reliable performance under high-stress applications
- Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks during installation
- 82° countersink angle with standard flat head profile enables flush mounting for clean, professional finishes
- Rockwell B70 hardness maintains structural integrity and prevents deformation under repeated use
- Coarse UNC threading offers faster installation and superior resistance to vibration loosening
- Full threading along 1-1/4" length maximizes grip range and adjustment flexibility
Professional Applications & Engineering Value
These 8-32 UNC flat head slotted screws deliver critical engineering solutions where flush surface mounting and high-strength fastening are paramount. The zinc-plated steel construction provides essential corrosion protection for machinery, electrical enclosures, and assembly line equipment exposed to industrial atmospheres. The 82° countersink angle ensures seamless integration into precision-machined components, eliminating protrusions that could interfere with moving parts or safety clearances. With 60,000 psi tensile strength and Rockwell B70 hardness, these fully threaded screws maintain clamping force in vibration-prone applications while the coarse UNC thread form enables rapid assembly in production environments. Ideal for manufacturing equipment, automotive assemblies, and structural frameworks requiring dependable, compliant fasteners.
Specification Summary & Compliance
Manufactured to exact ASME B18.6.3 specifications with Class 2A thread fit tolerances ensuring dimensional accuracy and interchangeability. Features UNC coarse threads (8-32 size) with right-hand direction and standard flat head profile. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making these screws suitable for global industrial supply chains and regulated applications.
