S-96909A410 4-40 x 1/2" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Split Lock Washer
Stainless Steel Pan Head Phillips Screws with Split Lock Washer
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Vibration-resistant locking with integrated 410 stainless steel split lock washer prevents loosening in high-stress applications
- Superior corrosion resistance through 18-8 stainless steel construction and passivated finish for extended service life
- High-strength performance with 80,000 PSI tensile strength and Rockwell B85 hardness for demanding industrial environments
- Quick installation with No. 1 Phillips drive and fully threaded 4-40 UNC coarse thread design
- Secure fastening through rounded pan head profile that distributes clamping force evenly
- Reliable compliance meeting ASME B18.13 specifications for consistent quality and performance
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing
Professional Applications & Engineering Value
These 4-40 UNC rounded head Phillips screws with integrated lock washers solve critical vibration-induced loosening problems in industrial assemblies. The combination of 18-8 stainless steel material and passivated finish provides exceptional corrosion resistance for harsh environments, while the split lock washer maintains tension under dynamic loads. The coarse thread design ensures rapid installation in various materials, and the fully threaded construction offers maximum engagement strength. Ideal for machinery, electronics, and automotive applications where vibration resistance and 80,000 PSI tensile strength are essential for long-term reliability. The pan head profile with No. 1 Phillips drive facilitates efficient assembly without compromising structural integrity.
Specification Summary & Compliance
This 4-40 UNC screw features Class 2A thread tolerances with coarse thread spacing, manufactured to ASME B18.13 specifications for dimensional accuracy. The assembly includes a matching 410 stainless steel split lock washer with passivated finish. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The 1/2" length and fully threaded design provide consistent performance in standard industrial applications.
