S-95599A112 4-40 x 1/4" Stainless Steel Oversized-Flange Button Head Hex-Drive Screws
Stainless Steel Oversized-Flange Button Head Hex-Drive 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 thanks to 18-8 Stainless Steel construction, ideal for harsh environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable load-bearing
- Integrated flange design eliminates the need for separate washers, simplifying installation and improving stability
- Precision Class 2A thread fit ensures smooth assembly and consistent performance in demanding applications
- Hex drive compatibility with 1/16" drive size provides secure tool engagement and reduces stripping risk
- Full regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
- Coarse UNC threading offers faster installation and better performance in softer materials
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 4-40 UNC rounded head flanged screws deliver exceptional value in precision assembly systems. The 18-8 Stainless Steel construction provides excellent corrosion resistance, making them ideal for electronics enclosures, machinery components, and outdoor equipment where environmental factors pose challenges. The integrated flange design distributes clamping force evenly, preventing surface damage while eliminating the need for additional components. With Class 2A thread fit and coarse UNC threading, these fasteners ensure reliable performance in vibration-prone applications while enabling rapid installation in production environments. The hex drive system maintains torque integrity during high-speed assembly operations, reducing the risk of fastener failure in critical applications.
Specification Summary & Compliance
This precision fastener features 4-40 UNC coarse threading with Class 2A thread fit for consistent dimensional accuracy. Manufactured from 18-8 Stainless Steel with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The product meets industrial standards for fully threaded fasteners with specified mechanical properties including 80,000 psi tensile strength and Rockwell B85 hardness rating.
