S-91205A734 5/8"-11 x 2 1/2" 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
- Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Nylon patch thread locker provides secure, vibration-resistant locking from -70° to 250°F, maintaining joint integrity in fluctuating temperatures.
- Precision Class 3A UNC coarse threads offer superior fit and ease of assembly, minimizing cross-threading and installation time.
- Black-oxide coating on alloy steel enhances corrosion resistance and durability, extending service life in harsh industrial environments.
- Partially threaded design allows for precise clamping force control, ideal for applications requiring specific unthreaded shank sections.
- 1/2" hex drive socket head enables high-torque installation with standard tools, ensuring tight fastening without stripping.
- Compliance with ASME B18.3 and environmental standards guarantees consistent quality and safe use in regulated industries.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this black-oxide alloy steel socket head cap screw addresses critical challenges like vibration loosening and thermal expansion. The nylon patch thread locker secures joints in machinery, automotive, and heavy equipment, preventing downtime due to fastener slippage. Its coarse UNC threads and Class 3A fit ensure quick, accurate assembly in high-volume production, while the high tensile strength and hardness support structural integrity under dynamic loads. Ideal for partially threaded applications, it provides reliable fastening in frames, engines, and assembly jigs where precision and durability are paramount.
Specification Summary & Compliance
This screw features a 5/8"-11 UNC thread with Class 3A precision tolerance for consistent fit. It meets ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.
