S-93923A354 4-40 x 1/2" ASME B18.6.3 Stainless Steel Pan Head Slotted Screws
Stainless Steel Pan Head Slotted Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable, long-term performance
- Precise thread engagement through Class 2A thread fit and UNC coarse threading, ensuring secure fastening in various materials
- Easy installation and removal with standard slotted drive and rounded pan head design, compatible with common tools
- Full threading coverage along the 1/2" length provides maximum grip and uniform load distribution
- Compliance with industry standards including ASME B18.6.3 for dimensional accuracy and RoHS/REACH for environmental safety
- Versatile right-hand thread direction suitable for most assembly applications, enhancing operational efficiency
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 4-40 UNC rounded pan head slotted screws address critical challenges in machinery, marine, and chemical processing applications. The 316 Stainless Steel material, combined with a passivated finish, provides outstanding resistance to corrosive agents like chlorides and acids, reducing maintenance costs and downtime. The coarse UNC threading and Class 2A fit ensure quick, reliable fastening in metals and plastics, while the slotted drive allows for straightforward manual or automated installation. With a high 80,000 psi tensile strength, these screws maintain integrity under vibration and load, making them ideal for securing components in HVAC systems, electronic enclosures, and automotive assemblies where durability and compliance are paramount.
Specification Summary & Compliance
This screw features a 4-40 UNC thread size with Class 2A thread fit for precise dimensional tolerance, fully threaded along a 1/2" length. Manufactured in accordance with ASME B18.6.3 specifications, it ensures consistent quality and interchangeability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for global industrial use.
