S-91205A346 10-32 x 7/8" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws
Alloy Steel Thread-Locking Socket 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
- Vibration-resistant locking with permanent Nylon Patch thread locker, maintaining secure fastening from -70° to 250° F without loosening
- Exceptional tensile strength of 170,000 psi from alloy steel construction, ensuring reliable performance under high-stress industrial conditions
- Precise Class 3A thread fit for superior engagement and reduced risk of cross-threading in critical assemblies
- Corrosion-resistant black-oxide finish enhances durability and provides added protection in demanding environments
- Hex socket drive design allows for high-torque installation with standard 5/32" tools, minimizing strip-out risks
- Full compliance with ASME B18.3 and ASTM A574 guarantees consistent quality and dimensional accuracy for engineering applications
- Fine UNF thread spacing delivers improved clamping force distribution and finer adjustment capabilities
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 10-32 UNF socket head cap screws solve critical vibration-induced loosening problems in machinery, automotive, and aerospace assemblies. The black-oxide alloy steel construction combined with Rockwell C37 hardness provides exceptional wear resistance while the permanent Nylon Patch thread locker ensures maintained clamp force under thermal cycling from -70° to 250° F. The Class 3A thread fit and fine thread spacing enable precise alignment in tight-tolerance applications, reducing installation time and improving joint integrity. These socket head screws are particularly valuable in equipment subject to dynamic loads where vibration resistance and consistent performance are paramount.
Specification Summary & Compliance
This 7/8" socket head cap screw features precision Class 3A thread fit with 10-32 UNF fine threads and right-hand direction. Manufactured to ASME B18.3 specifications with material certification to ASTM A574. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The hex drive socket head accepts standard 5/32" tools for consistent installation torque application.
