S-91309A835 3/4"-10 x 1" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-Strength Steel Hex 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 plating, extending service life in demanding industrial environments
- High tensile strength of 60,000 PSI ensures reliable performance under heavy loads and vibration
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
- Coarse UNC thread with Class 2A fit offers faster assembly and reliable engagement in various materials
- Fully threaded design allows for maximum grip length and adjustable positioning
- External hex drive with 1 1/8" head width enables high-torque installation using standard tools
- Compliance with ASME B18.2.1/ASTM A307 standards guarantees consistent quality and dimensional accuracy
Professional Applications & Engineering Value
These 3/4"-10 UNC hex head screws deliver exceptional engineering value in heavy-duty applications where reliability is critical. The high-strength steel construction combined with zinc plating provides robust protection against corrosion in industrial settings, from machinery assembly to structural steel connections. The coarse thread design ensures quick installation and superior holding power in both metal and wood substrates, while the external hex drive allows for high-torque tightening without stripping. These fully threaded hex head fasteners are engineered to withstand significant mechanical stress, making them ideal for construction equipment, industrial machinery, and infrastructure projects where 60,000 PSI tensile strength and consistent performance are mandatory requirements.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance. These hex head screws comply with ASME B18.2.1 specifications and ASTM A307 material standards, ensuring dimensional accuracy and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry requirements for safe and sustainable manufacturing practices.
