S-90604A554 4-40 x 1/2" ASME B18.6.3 Stainless Steel Pan Head Combination Phillips/Slotted Screws
Stainless Steel Pan Head Combination Phillips/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 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- High tensile strength of 100,000 psi provides exceptional load-bearing capacity and resistance to mechanical stress in demanding applications.
- Rockwell B100 hardness offers excellent durability and wear resistance, reducing the risk of stripping or deformation during installation.
- Dual Phillips/slotted drive options allow for versatile installation with standard tools, improving assembly efficiency and flexibility.
- Class 2A thread fit with UNC coarse threading ensures easy, precise engagement and reliable fastening in various materials.
- Fully threaded design maximizes grip and holding power across the entire length, enhancing joint integrity.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for safe, responsible use.
Professional Applications & Engineering Value
These 4-40 UNC rounded head screws are engineered to address common industrial challenges, such as corrosion and mechanical failure. Made from 18-8 stainless steel with a passivated finish, they resist oxidation and chemical exposure, making them ideal for applications in electronics, machinery, and outdoor equipment. The pan head design with dual Phillips/slotted drive simplifies installation in tight spaces, while the coarse thread and Class 2A fit ensure quick, secure fastening in metals and plastics. With a 100,000 psi tensile strength and full threading, they provide consistent performance in high-vibration environments, reducing maintenance needs and downtime.
Specification Summary & Compliance
These screws feature precise Class 2A thread fit and UNC coarse threading with a diameter of 0.112" and length of 1/2". Manufactured to ASME B18.6.3 specifications, they ensure dimensional accuracy and reliability. Additionally, they are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, supporting environmental safety and regulatory requirements in industrial settings.
