S-97654A354 1/4"-20 x 7/8" Stainless Steel Flanged Button Head Hex-Drive Screws
Stainless Steel Flanged Button Head Hex-Drive 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 and passivated finish for long-lasting performance in harsh environments
- Superior load-bearing capability with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Precise thread engagement through Class 3A UNC coarse threads ensuring reliable fastening and vibration resistance
- Integrated flange design eliminates need for separate washers, providing wider bearing surface and simplified installation
- Secure hex drive system with 5/32" drive size delivers positive torque transmission and prevents stripping during installation
- Full threading along 7/8" length enables maximum adjustability and consistent clamping force throughout the engagement
- Regulatory compliance assurance with RoHS 3 and REACH compliance for global industrial applications
Professional Applications & Engineering Value
Engineered for industrial machinery, equipment assembly, and structural frameworks, this 18-8 stainless steel flanged rounded head screw addresses critical fastening challenges where corrosion resistance and high tensile strength are paramount. The passivated finish enhances surface durability against chemical exposure and oxidation, while the integrated flange distributes clamping pressure effectively, preventing surface damage and maintaining joint integrity. The UNC coarse thread spacing with Class 3A fit ensures rapid installation and reliable performance in high-vibration environments, making it ideal for manufacturing equipment, automotive components, and outdoor infrastructure where maintenance access is limited and long-term reliability is essential.
Specification Summary & Compliance
This 1/4"-20 x 7/8" flanged rounded head screw features Class 3A thread fit per UNC standards with coarse spacing, manufactured from 18-8 stainless steel with passivated finish. The screw maintains dimensional accuracy with 0.563" flange diameter and fully threaded design. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety for industrial applications worldwide.
