S-91613A434 4-40 x 1/2" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws
Stainless Steel Fillister Head Slotted 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 with 316 Stainless Steel construction and passivated finish, ideal for harsh environments and extended service life
- High tensile strength of 100,000 psi ensures reliable fastening under significant mechanical stress and vibration
- Precise Class 2A thread fit with UNC coarse threads for easy, rapid assembly and reduced cross-threading risks
- Durable Rockwell B100 hardness provides excellent wear resistance and maintains thread integrity through repeated use
- Full threading along the 1/2" length offers maximum grip and uniform load distribution in various material thicknesses
- Rounded fillister head with slotted drive allows for straightforward installation and a low-profile, finished appearance
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to strict industrial and environmental safety standards
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 4-40 UNC rounded head slotted screws address critical challenges in machinery, electronics, and marine applications where corrosion resistance is paramount. The 316 Stainless Steel material, enhanced by a passivated finish, effectively combats oxidation and chemical exposure, prolonging component life in humid or corrosive atmospheres. The coarse UNC thread and Class 2A fit facilitate quick, secure installations, minimizing assembly time while ensuring consistent performance under dynamic loads. With a high tensile strength and fully threaded design, these screws provide robust fastening solutions for equipment requiring reliable, long-term connections without compromising on regulatory compliance.
Specification Summary & Compliance
This screw features a 4-40 UNC coarse thread with Class 2A fit for precise dimensional accuracy, a length of 1/2", and a rounded fillister head. It is manufactured in accordance with ASME B18.6.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.
