S-91205A033 0-80 x 3/16" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws
Alloy Steel Thread-Locking Socket Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Permanent vibration resistance with nylon patch thread locker, preventing loosening in high-stress environments
- Exceptional tensile strength of 170,000 psi for reliable performance in demanding mechanical assemblies
- Superior corrosion protection through black-oxide coating on alloy steel, extending service life
- Precise Class 3A thread fit ensuring secure fastening and reduced risk of cross-threading
- Wide temperature tolerance from -70° to 250°F, maintaining integrity in extreme operating conditions
- Hex socket drive design providing high torque capability and easy installation in confined spaces
- Fine UNF threading offering enhanced load distribution and improved fatigue resistance
Professional Applications & Engineering Value
Engineered for critical industrial fastening applications, these socket head cap screws address common failure points in machinery and equipment. The black-oxide alloy steel construction combined with nylon patch locking technology creates a durable solution that resists vibration-induced loosening - a frequent challenge in automotive, aerospace, and manufacturing equipment. The Class 3A fine thread fit ensures precise engagement in tapped holes, reducing the risk of stripping in soft materials or delicate components. With their 170,000 psi tensile strength and temperature-resistant properties, these UNF threaded fasteners maintain clamping force integrity in environments experiencing thermal cycling or mechanical stress fluctuations, making them ideal for precision assemblies requiring reliable, long-term performance.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNF fine threading (0-80 size). Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Meets material specifications per ASTM A574 for alloy steel socket head cap screws, ensuring consistent quality and performance in industrial applications.
