S-91255A030 10-32 x 3" ASTM F835 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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 of 120,000 psi ensures reliable performance under high-stress conditions, reducing failure risks in demanding applications.
- Superior corrosion resistance with black-oxide coating on alloy steel extends service life and maintains integrity in harsh industrial environments.
- Precision Class 3A thread fit guarantees tight tolerances and secure fastening, minimizing loosening and vibration-related issues.
- Hex drive design allows for efficient torque application and easy installation with standard tools, speeding up assembly processes.
- Fully threaded construction provides consistent grip along the entire length, enhancing load distribution and connection stability.
- Rounded button head profile offers a low-profile, aesthetically clean finish while reducing snagging risks in confined spaces.
- Rockwell C39 hardness delivers excellent wear resistance, ensuring durability and long-term performance in repetitive use scenarios.
Professional Applications & Engineering Value
Engineered for industrial applications requiring precision and reliability, this 10-32 UNF screw with fine threading addresses common challenges like vibration-induced loosening and material fatigue. The black-oxide alloy steel construction combats corrosion in humid or abrasive settings, while the rounded head and hex drive facilitate quick, secure installations in machinery, automotive assemblies, and electronic enclosures. Its fully threaded design ensures uniform stress distribution, making it ideal for heavy-duty fasteners in structural components where consistent clamping force is critical to operational safety and efficiency.
Specification Summary & Compliance
This screw adheres to Class 3A thread tolerances for precise fit, with UNF fine thread specifications (10-32 size) and right-hand threading. It meets ASME B18.3 and ASTM F835 manufacturing standards, ensuring dimensional accuracy and performance reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports environmentally safe and sustainable industrial practices.
