S-90277A210 1/4"-20 x 3/8" ASME B18.6.3 Steel Binding Head Slotted Screws
Steel Binding 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 zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments.
- High tensile strength of 60,000 psi provides reliable load-bearing capacity and prevents fastener failure under stress.
- Rockwell B69 hardness offers excellent durability and resistance to wear, maintaining integrity through repeated use.
- Fully threaded UNC coarse design enables quick installation and strong holding power in various materials.
- Class 2A thread fit ensures consistent, precise engagement for reduced assembly time and improved reliability.
- Wide rounded binding head distributes clamping force evenly, minimizing surface damage and enhancing grip.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.
Professional Applications & Engineering Value
This zinc-plated steel rounded head slotted screw is engineered to address common industrial fastening challenges, such as vibration loosening and corrosion-induced failure. The 1/4-20 UNC coarse thread and fully threaded design provide rapid installation and robust retention in machinery, electrical enclosures, and binding applications. Its wide binding head offers a secure fit without sinking into softer materials, reducing the risk of damage. Made from high-strength steel with a protective zinc coating, it resists rust and wear in demanding environments, ensuring long-term reliability for industrial screws used in assembly lines, automotive components, and heavy-duty equipment. This combination of material and design delivers consistent performance, minimizing maintenance needs and downtime.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and adheres to UNC thread standards for dimensional accuracy. It meets ASME B18.6.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry conformity.
