S-92865A442 5/8"-18 x 3 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex 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
- Superior tensile strength of 120,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Zinc plating provides excellent corrosion resistance, extending service life in harsh industrial environments.
- Fine UNF threading (5/8"-18) offers enhanced grip and vibration resistance compared to coarse threads, maintaining joint integrity.
- Class 2A thread fit allows for easy assembly while maintaining precise tolerances, speeding up installation without compromising quality.
- Grade 5 steel construction with Rockwell C25 hardness delivers optimal durability and wear resistance for long-term use.
- External hex drive design enables quick and secure tightening with standard tools, improving workflow efficiency.
- Full threading along the 3 1/2" length provides maximum engagement and load distribution in various materials.
Professional Applications & Engineering Value
This 5/8"-18 UNF hex head screw is engineered to address critical challenges in industrial settings, such as vibration loosening and material fatigue. The fine thread spacing enhances clamping force and resistance to dynamic loads, making it ideal for machinery, structural assemblies, and automotive components. Constructed from Grade 5 steel with a zinc plated finish, it combats corrosion in outdoor or humid conditions, ensuring longevity. The external hex drive allows for high-torque applications, facilitating secure fastening in tight spaces. By meeting ASME B18.2.1 and SAE J429 standards, it guarantees consistency and reliability, reducing downtime and maintenance costs in demanding environments.
Specification Summary & Compliance
This fastener adheres to precise Class 2A thread fit and UNF fine thread standards for consistent performance. It complies with ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and mechanical properties. Additionally, it is RoHS 3 (2015/863/EU) Compliant, meeting environmental regulations for safe use in various industries.
