S-90114A612 1/4"-20 x 1/2" ASME B18.6.3 Brass Fillister Head Slotted Screws
Brass Fillister 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 from high-quality brass material, ideal for harsh environments and extended service life.
- Excellent machinability and electrical conductivity of brass simplifies installation and is beneficial for electronic assemblies.
- High tensile strength of 50,000 psi ensures a reliable and secure fastening connection under significant load.
- Rockwell B40 hardness provides a durable finish that resists wear and deformation during installation and use.
- Class 2A thread fit with coarse UNC threading offers easier, faster assembly and reduced risk of cross-threading.
- Fully threaded design maximizes grip and holding power along the entire length of the screw.
- High, narrow Fillister head profile allows for a deeper drive slot and provides a finished appearance while accommodating counterbored holes.
Professional Applications & Engineering Value
This 1/4"-20 UNC brass Fillister head slotted screw is engineered to address common industrial challenges such as corrosion, electrical interference, and the need for reliable, repeatable fastening. The brass material inherently resists rust and galvanic corrosion, making it a top choice for marine, plumbing, and electrical applications where moisture is a concern. Its excellent conductivity also makes it suitable for grounding and electronic chassis assembly. The coarse UNC thread and Class 2A fit ensure quick and secure engagement in a variety of materials, from metals to plastics, reducing assembly time and improving production efficiency. The slotted drive and distinctive high, narrow rounded head profile provide a classic, low-profile solution that is both functional and aesthetically pleasing in finished products.
Specification Summary & Compliance
This screw is manufactured to precise dimensional standards, featuring a Class 2A thread fit for general application use. It conforms to the ASME B18.6.3 standard, ensuring consistent quality and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free from hazardous substances and safe for use in various markets.
