S-93705A639 1/2"-13 x 1 1/4" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws
18-8 Stainless 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 integrated Nylon Patch thread locker prevents loosening in high-stress environments, maintaining joint integrity.
- Superior corrosion resistance from 18-8 Stainless Steel ensures long-term reliability in harsh or outdoor industrial settings.
- High tensile strength of 70,000 psi provides exceptional load-bearing capacity for demanding mechanical assemblies.
- Precise Class 3A thread fit guarantees secure, accurate mating with nuts and tapped holes, reducing assembly errors.
- Wide temperature tolerance (-70° to 250°F) allows consistent performance in extreme thermal conditions without degradation.
- 3/8" hex drive design offers high torque transmission and easy installation with standard tools, speeding up assembly processes.
- Coarse UNC threading enables quick engagement and disassembly, ideal for maintenance and repetitive applications.
Professional Applications & Engineering Value
Engineered for high-stress industrial applications, this Socket Head Cap Screw addresses critical challenges like vibration-induced loosening and environmental corrosion. The 18-8 Stainless Steel construction combined with a Nylon Patch thread locker ensures reliable performance in machinery, automotive, and structural assemblies where temperature fluctuations and dynamic loads are common. Its Class 3A thread fit and coarse UNC thread provide swift, secure fastening, reducing downtime in production lines. Ideal for use in heavy-duty equipment and precision engineering projects, it delivers durability and compliance with industry standards, enhancing operational safety and longevity.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 3A fit for precise tolerance, ensuring consistent thread engagement. Manufactured in accordance with ASME B18.3 specifications, it includes full threading and a standard socket head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety standards for global industrial use.
