S-94701A540 1/4"-20 x 3/4" ASME B18.6.3 Plastic Slotted Flat Head Screws
Plastic Slotted Flat Head 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
- Exceptional temperature resilience for stable performance in environments ranging from -100°F to 500°F, preventing material failure under thermal stress.
- Superior chemical and corrosion resistance due to PTFE construction, ensuring long-term reliability in harsh industrial settings.
- Precise Class 2A thread fit for smooth assembly and secure fastening, reducing the risk of cross-threading and improving installation efficiency.
- Standard 82° countersink angle allows for a flush, low-profile finish, enhancing aesthetics and safety in assembled products.
- Fully threaded design maximizes grip and load distribution along the entire length, providing consistent clamping force.
- Compliance with ASME B18.6.3 ensures dimensional accuracy and interchangeability, supporting standardized manufacturing processes.
- RoHS 3 and REACH compliance guarantees environmental safety and regulatory acceptance for global supply chains.
Professional Applications & Engineering Value
Engineered for demanding sectors, this PTFE plastic flat head screw addresses critical challenges in high-temperature and corrosive environments. Its 1/4"-20 UNC coarse threading and Class 2A fit facilitate quick, reliable assembly in equipment such as chemical processing units, food machinery, and electrical enclosures where metal fasteners risk galvanic corrosion or thermal degradation. The slotted drive offers straightforward manual installation, while the white PTFE material maintains integrity against acids, bases, and solvents, reducing maintenance downtime and extending service life in industrial plastic fastener applications.
Specification Summary & Compliance
This screw adheres to ASME B18.6.3 specifications, ensuring precise dimensions including a 1/4"-20 UNC coarse thread with Class 2A tolerance for consistent fit. The 82° countersink angle and fully threaded design meet standard requirements for flat head profiles. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of restricted substances for safe use in regulated industries.
