S-97646A317 5/16"-18 x 1 3/4" 18-8 Stainless Steel Serrated-Flange Hex Head Screws
18-8 Stainless Steel Serrated-Flange Hex 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency.
- High tensile strength of 100,000 psi ensures reliable performance under significant load and stress in demanding applications.
- Secure, vibration-resistant locking provided by the serrated flange, which helps prevent loosening and maintains assembly integrity.
- Easy installation and removal with the external hex drive and standard UNC coarse thread, saving time and labor costs.
- Precise Class 2A thread fit guarantees consistent, reliable engagement with nuts and tapped holes, minimizing the risk of cross-threading.
- Fully threaded design offers maximum grip length and versatility for a wide range of material thicknesses.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets international standards for industrial components.
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion. The 18-8 stainless steel material provides excellent resistance to rust and chemical exposure, making it suitable for outdoor, marine, and chemical processing equipment. The integrated flange with serrations acts as a built-in washer, distributing clamp load effectively and providing a locking feature that resists back-off in high-vibration environments like machinery, automotive assemblies, and structural frameworks. Its coarse thread ensures quick assembly and reliable performance in softer materials or where debris is present. This combination of durability, strength, and ease of use delivers long-term reliability and reduces maintenance downtime in industrial applications.
Specification Summary & Compliance
This screw features a UNC coarse thread with a Class 2A fit for consistent dimensional accuracy and easy assembly. It is manufactured from 18-8 stainless steel with a hardness of Rockwell B100 and a tensile strength of 100,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.
