S-93595A225 1/4"-28 x 1" ASTM B456 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with chrome plated 18-8 stainless steel construction, ideal for harsh industrial environments
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precision Class 3A thread fit provides superior engagement and reduces the risk of stripping in critical assemblies
• Fine UNF thread profile offers improved adjustment control and better resistance to loosening compared to coarse threads
• 3/16" hex drive socket head allows for high torque application and easy installation in confined spaces
• Full threading along the 1" length enables versatile positioning and secure fastening throughout the entire shank
• Rockwell B70 hardness maintains thread integrity and durability through repeated use

Professional Applications & Engineering Value

This 1/4"-28 UNF Socket Head Cap Screw delivers critical performance advantages in demanding applications where precision and reliability are paramount. The chrome plated 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for machinery, automotive, and marine environments where exposure to moisture and chemicals is common. The Class 3A thread fit ensures tight tolerances and secure fastening in high-vibration equipment, reducing maintenance needs and downtime. With its fine thread configuration and fully threaded design, this fastener offers superior clamping force distribution and resistance to loosening under dynamic loads. The combination of 70,000 psi tensile strength and Rockwell B70 hardness makes it ideal for critical structural connections in manufacturing equipment, aerospace components, and precision instruments where failure is not an option.

Specification Summary & Compliance

This socket head cap screw features precision 1/4"-28 UNF fine threads with Class 3A fit for exacting tolerance requirements. The fastener meets ASTM B456 specifications for coating quality and material standards. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance management. The fully threaded design maintains consistent engagement throughout the entire 1" length, while the standard socket head profile with 3/16" hex drive provides reliable torque transmission.