S-90343A136 1/4"-20 x 1 1/2" 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
- Permanent vibration resistance with epoxy thread locker that maintains integrity from -60°F to 300°F
- Superior corrosion resistance through 18-8 stainless steel construction for extended service life
- Precise Class 3A thread fit ensures reliable engagement and reduces assembly issues
- High tensile strength of 70,000 psi provides exceptional load-bearing capacity
- Standard hex socket drive allows for secure installation in confined spaces
- Full thread coverage along the 1-1/2" length enables maximum fastening flexibility
- ASME B18.3 compliance guarantees consistent quality and dimensional accuracy
Professional Applications & Engineering Value
These 18-8 stainless steel socket head cap screws with integrated epoxy thread locker deliver critical vibration resistance in demanding industrial environments. The UNC coarse thread design combined with Class 3A thread fit ensures rapid assembly while maintaining precision alignment in machinery, automotive, and heavy equipment applications. The permanent epoxy adhesive begins hardening within 15 minutes and reaches full strength in 24 hours, creating a reliable bond that withstands extreme temperature fluctuations from -60°F to 300°F. This combination of high tensile strength (70,000 psi) and Rockwell B70 hardness provides exceptional durability against loosening under dynamic loads, making these socket head cap screws ideal for permanent installations where maintenance access is limited.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision dimensional accuracy. Features 1/4"-20 UNC coarse threads with right-hand direction and standard socket head profile. The 3/16" hex drive provides secure tool engagement. Complies with industry standards for mechanical properties and dimensional requirements, ensuring consistent performance and interchangeability across industrial applications.
