S-90276A640 3/8"-16 x 4" ASME B18.6.3 Steel Round Head Slotted Screws
Steel Round Head Slotted 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 corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
- High tensile strength of 60,000 PSI ensures reliable performance under heavy loads and vibration
- Class 2A thread fit provides optimal assembly clearance while maintaining secure fastening integrity
- Partial threading design allows for precise clamping force control and reduced material stress
- Coarse UNC thread pattern enables faster installation and superior resistance to loosening
- Rockwell B69 hardness rating delivers exceptional durability and wear resistance
- Standard slotted drive offers compatibility with common tools for simplified maintenance
Professional Applications & Engineering Value
These 3/8"-16 UNC zinc-plated steel rounded head screws are engineered to address critical industrial fastening challenges where corrosion resistance and mechanical strength are paramount. The zinc-plated surface treatment provides essential protection against oxidation in manufacturing facilities, outdoor equipment, and marine applications. The coarse thread configuration ensures reliable performance in soft materials and high-vibration environments, while the partial threading design prevents over-tightening and distributes clamping forces evenly. These industrial-grade slotted drive screws deliver consistent performance in machinery assembly, structural frameworks, and heavy equipment maintenance, reducing replacement frequency and maintenance costs.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse thread specifications. These screws comply with ASME B18.6.3 manufacturing standards, ensuring consistent quality and interchangeability. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. The inch system measurements include 4" length, 0.708" head diameter, and 3/8"-16 thread size with right-hand thread direction.
