S-98201A312 1/4"-20 x 1 3/16" Exact-Grip-Length Flanged Socket Head Screws
Exact-Grip-Length Flanged Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration.
- Precise Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading.
- Integrated flange design eliminates the need for a separate washer, distributing load evenly and speeding up assembly.
- Hex socket drive (3/16") allows for high-torque installation in confined spaces with standard tools.
- Rockwell B83 hardness offers excellent wear resistance and durability over repeated use.
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance in global markets.
Professional Applications & Engineering Value
This 1/4-20 UNC flanged socket head cap screw is engineered to address critical assembly challenges in demanding sectors like machinery, automotive, and electronics. The 18-8 stainless steel material provides inherent corrosion resistance, reducing maintenance in humid or chemically aggressive settings. Its coarse UNC thread and Class 3A fit ensure quick, secure fastening with minimal risk of stripping, while the flange enhances stability and load distribution—ideal for applications where space is limited and vibration is a concern. The partially threaded design allows for precise clamping force control, making it a versatile choice for industrial fasteners requiring both strength and precision.
Specification Summary & Compliance
This fastener adheres to UNC coarse thread standards with a Class 3A thread fit for high precision. Dimensions include a thread size of 1/4"-20, length of 1 3/16", and a 3/16" hex drive. It is manufactured from 18-8 stainless steel with a tensile strength of 80,000 psi and hardness of Rockwell B83. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets stringent environmental and safety regulations for industrial use.
