S-91253A008 10-32 x 3/4" ASME B18.3 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive 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
- Exceptional tensile strength (130,000 PSI) ensures reliable performance under high-stress conditions, reducing failure risks
- Class 3A thread fit provides superior precision and vibration resistance for secure fastening in demanding applications
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and durability in harsh industrial environments
- Hex drive design allows for high-torque installation and easy removal with standard tools, improving assembly efficiency
- 82° countersink angle and flat head profile enable flush mounting for clean, aerodynamic surfaces and reduced snagging
- Fully threaded construction ensures maximum grip length and uniform load distribution across the entire fastener
- Fine thread spacing (UNF) delivers improved clamping force and better resistance to loosening under dynamic loads
Professional Applications & Engineering Value
Engineered for precision assembly in industrial machinery, automotive systems, and electronic enclosures, this 10-32 UNF Class 3A flat head screw addresses critical challenges like vibration-induced loosening and corrosion. The black-oxide alloy steel construction combined with 130,000 PSI tensile strength and Rockwell C39 hardness ensures long-term reliability in high-stress environments. The hex drive facilitates quick installation with standard wrenches, while the 82° countersink provides a seamless finish that minimizes protrusion risks. Ideal for applications requiring fine thread spacing and right-hand threading, this fastener maintains integrity in dynamic operational conditions.
Specification Summary & Compliance
This screw features Class 3A thread fit per UNF standards, ensuring tight tolerances for precision assemblies. It complies with ASME B18.3 and ASTM F835 manufacturing specifications, guaranteeing dimensional accuracy and performance consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use worldwide.
