S-91251A692 7/16"-14 x 7" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance under extreme loads, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life and maintaining integrity in harsh industrial environments.
• Precise Class 3A thread fit guarantees secure, vibration-resistant assemblies with minimal play, enhancing joint stability and safety.
• High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity and drive features through repeated use and high torque.
• Partially threaded design allows for controlled clamping force and easier alignment, streamlining installation in precision machinery and equipment.
• Standard 3/8" hex drive enables efficient installation with common tools, reducing assembly time and improving workflow efficiency.
• Compliance with ASTM A574 ensures consistent quality and dimensional accuracy, providing reliable interchangeability and meeting rigorous engineering specifications.

Professional Applications & Engineering Value

These Socket Head Cap Screws are engineered to address critical challenges in heavy-duty industrial and machinery applications. The black-oxide alloy steel construction combats corrosion and wear, significantly extending component life in environments exposed to moisture, chemicals, or abrasion. The 7/16"-14 UNC coarse thread and Class 3A fit provide superior resistance to loosening under vibration, a common failure point in dynamic systems like automotive assemblies, manufacturing equipment, and construction machinery. The partially threaded shank design concentrates clamping force precisely where needed, preventing damage to sensitive components and ensuring accurate alignment in precision engineering projects. This combination of material properties and thread design delivers reliable, long-term performance, reducing maintenance downtime and total cost of ownership for B2B clients.

Specification Summary & Compliance

This socket head cap screw features a 7/16"-14 UNC coarse thread with a precision Class 3A thread fit for high-strength applications. The manufacturing and material specifications strictly adhere to ASTM A574, ensuring consistent dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industrial markets.