S-98201A515 3/8"-16 x 2 1/8" 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
- Exceptional tensile strength rated at 80,000 PSI for reliable performance in high-stress applications
- Precision Class 3A thread fit ensures secure, vibration-resistant fastening with minimal play
- Integrated flange design eliminates need for separate washers, reducing assembly time and parts count
- 5/16" hex drive socket provides superior torque transmission and prevents stripping during installation
- Partially threaded shank offers optimal grip length control for precise clamping force distribution
- Full regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these flanged socket head cap screws deliver critical performance advantages where vibration resistance and corrosion protection are paramount. The 18-8 Stainless Steel composition provides excellent durability in moist or chemical environments, while the Class 3A thread fit maintains precise tolerances for secure fastening in machinery, automotive assemblies, and structural frameworks. The integrated flange distributes clamping force evenly, preventing surface damage and maintaining joint integrity under dynamic loads. With 80,000 PSI tensile strength and Rockwell B83 hardness, these UNC coarse thread fasteners withstand extreme mechanical stresses in heavy equipment, manufacturing fixtures, and aerospace components where reliability cannot be compromised.
Specification Summary & Compliance
This 3/8"-16 UNC socket head cap screw features precision Class 3A thread fit per ASME B1.1 standards with right-hand threading and coarse thread spacing. Manufactured from 18-8 Stainless Steel with Rockwell B83 hardness rating, the fastener includes a 5/16" hex drive, 2-1/8" overall length, and 1-1/2" grip length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global industrial applications requiring restricted substance control.
