S-91253A282 12-24 x 5/8" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive 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 black-oxide coating protecting against rust and extending service life in harsh environments
- Exceptional tensile strength of 130,000 psi ensures reliable performance under high-stress industrial applications
- Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Hex drive design allows for high-torque installation and secure fastening in confined spaces
- 82° countersink angle enables flush mounting for clean, professional finishes in metal and wood applications
- Full threading along the 5/8" length ensures maximum grip strength and uniform load distribution
- Rockwell C39 hardness maintains structural integrity and prevents stripping during repeated use
Professional Applications & Engineering Value
These 12-24 UNC flat head screws deliver critical engineering solutions where precision and durability are paramount. The black-oxide alloy steel construction provides excellent corrosion protection for machinery, automotive, and outdoor equipment applications. The coarse thread spacing and Class 3A thread fit ensure rapid installation while maintaining vibration resistance in high-stress environments. The hex drive design accommodates high-torque applications where screw heads must sit flush with surfaces. These fully threaded fasteners are engineered to prevent loosening under dynamic loads, making them ideal for assembly lines, metal fabrication, and structural components requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit precision and UNC coarse thread specifications. These 5/8" flat head screws feature 82° countersink angle and meet ASTM F835 specifications for mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
