S-90585A063 3/8"-16 x 1 5/8" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction with passivated finish
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Precision thread engagement with Class 3A thread fit ensures secure fastening and vibration resistance
- Full threading design provides maximum grip length and load distribution across the entire fastener
- Standard 82° countersink angle enables flush mounting for clean, professional installations
- Hex drive compatibility with 7/32" drive size allows for high-torque installation and removal
- Regulatory compliance meets ASME B18.3 standards with RoHS 3 and REACH environmental regulations
Professional Applications & Engineering Value
These 316 stainless steel flat head screws deliver critical performance advantages in corrosive and high-stress environments. The combination of Class 3A thread fit and fully threaded design ensures maximum thread engagement and superior vibration resistance, making them ideal for machinery, marine equipment, chemical processing, and structural applications where joint integrity is paramount. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, providing extended service life in saltwater, chemical, and outdoor exposures. With 70,000 psi tensile strength and compliance with ASME B18.3 standards, these UNC threaded fasteners offer reliable performance in critical industrial assemblies where failure is not an option.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit tolerance for precision engagement. Features 3/8"-16 UNC coarse threads with right-hand orientation and standard flat head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The inch system measurement ensures dimensional accuracy with specified head diameter tolerance of -0.061" to 0" and consistent 82° countersink angle for proper seating in standard countersunk holes.
