S-97654A353 1/4"-20 x 5/8" 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
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Class 3A thread fit provides precise, secure fastening with minimal risk of loosening
- Integrated flange design eliminates the need for separate washers, speeding up assembly and reducing part count
- Hex drive (5/32") allows for high-torque installation with standard tools, preventing cam-out
- Fully threaded UNC coarse spacing enables faster driving and better chip clearance in various materials
- Compliance with RoHS 3 and REACH ensures environmental safety and global regulatory acceptance
Professional Applications & Engineering Value
This 18-8 stainless steel flanged rounded head screw is engineered to address critical challenges in industrial assembly, including corrosion resistance, vibration management, and installation efficiency. The passivated finish enhances surface durability, preventing oxidation in humid or chemical-exposed settings like marine equipment, food processing machinery, and outdoor structures. Its flanged button head distributes clamping force evenly, reducing surface damage and maintaining joint integrity. The hex drive and UNC coarse threads allow for quick, secure fastening in metals and plastics, minimizing assembly time while providing 70,000 psi tensile strength for heavy-duty applications. Ideal for OEM manufacturing, automotive components, and electrical enclosures, this screw delivers long-term reliability where failure is not an option.
Specification Summary & Compliance
This screw meets Class 3A thread fit standards for precise tolerance, with UNC 1/4"-20 coarse threading and full threading along the 5/8" length. Manufactured from 18-8 stainless steel with a passivated finish, it achieves Rockwell B70 hardness and maintains dimensional accuracy per inch-system specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted substances for safe use in global markets.
