S-97646A249 1/4"-20 x 1/2" 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 industrial environments
- High tensile strength of 100,000 PSI ensures reliable performance under heavy loads and vibration
- Secure anti-loosening performance provided by serrated locking under the flange head
- Easy installation and removal with external hex drive and standard 3/8" head width
- Precise thread engagement with Class 2A thread fit for consistent assembly quality
- Full thread coverage along the 1/2" length maximizes grip and load distribution
- Environmental compliance with RoHS 3 and REACH regulations for safe industrial use
Professional Applications & Engineering Value
These 1/4"-20 UNC hex head screws deliver exceptional engineering value in demanding applications where corrosion resistance and vibration resistance are critical. The 18-8 stainless steel construction provides superior protection against rust and chemical exposure, making them ideal for marine, food processing, and outdoor equipment. The combination of fully threaded design and flanged head with serrations creates a secure locking mechanism that prevents loosening under dynamic loads, while the external hex drive allows for high-torque installation in confined spaces. With 100,000 PSI tensile strength and Rockwell B100 hardness, these screws maintain structural integrity in heavy machinery, automotive assemblies, and industrial equipment where reliability is paramount.
Specification Summary & Compliance
Manufactured to precise UNC coarse thread specifications with Class 2A thread fit for consistent dimensional accuracy. Features right-hand threading with 1/4"-20 thread size and 1/2" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The external hex drive and flanged design meet industry standards for hex head fasteners in mechanical applications.
