S-98201A612 1/2"-13 x 1 3/4" Exact-Grip-Length Flanged Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing maintenance costs.
• Exceptional tensile strength rated at 80,000 psi, providing reliable clamping force and resistance to mechanical failure under high-stress conditions.
• Precise Class 3A thread fit ensures tighter tolerances for secure, vibration-resistant assemblies and improved joint integrity.
• Integrated flange design eliminates the need for a separate washer, distributing load evenly and speeding up installation.
• 3/8" hex drive socket head allows for high-torque application with standard tools, reducing slippage and tool wear.
• Partially threaded shank with 1" grip length provides optimal unthreaded section for accurate alignment and shear strength.
• Full compliance with RoHS 3 and REACH regulations, ensuring environmental safety and suitability for global industrial supply chains.

Professional Applications & Engineering Value

This 18-8 stainless steel flanged socket head cap screw is engineered to address critical challenges in machinery assembly, automotive, and heavy equipment sectors. The 1/2"-13 UNC coarse thread with Class 3A precision minimizes cross-threading risks and maintains joint stability in high-vibration applications. Its flanged design enhances bearing surface area, preventing surface damage and loosening under dynamic loads. With a Rockwell B83 hardness and 80,000 psi tensile strength, it offers reliable performance in corrosive or high-stress environments, reducing downtime and replacement frequency. The 3/8" hex drive ensures efficient installation with common tools, making it a versatile choice for engineers prioritizing durability, compliance, and ease of maintenance.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured from 18-8 stainless steel and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Key specifications include a thread size of 1/2"-13, length of 1 3/4", and a partially threaded design with a 1" grip length, supporting consistent performance in regulated industrial applications.