S-90410A108 4-40 x 1/2" Tapping Screws
Tapping 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
- Self-tapping design eliminates pre-tapping requirements - Saves time and labor costs in assembly operations
- 410 stainless steel construction - Provides excellent corrosion resistance for demanding industrial environments
- Coarse UNC threading with full thread engagement - Ensures maximum holding power in various materials
- Phillips drive with pan head design - Offers secure tool engagement and flush mounting capability
- Blunt tip and thread cutting (Type F) design - Prevents material splitting while creating precise threads
- Multi-material compatibility - Specifically engineered for brass, cast iron, and sheet metal applications
- Environmental compliance assurance - Meets RoHS 3 and REACH standards for global market acceptance
Professional Applications & Engineering Value
These 4-40 UNC thread cutting tapping screws deliver exceptional engineering value in industrial fastening applications where material integrity and installation efficiency are paramount. The 410 stainless steel composition provides superior corrosion resistance, while the thread cutting design (Type F) creates precise mating threads in brass, cast iron, and sheet metal without requiring pre-tapped holes. The combination of coarse UNC threading and fully threaded shank ensures maximum pull-out resistance and vibration resistance in demanding applications. The Phillips drive system with pan head configuration allows for efficient installation with standard tools, reducing assembly time and improving production throughput in manufacturing environments.
Specification Summary & Compliance
These screws feature 4-40 UNC coarse threading with Class 2A tolerance standards, ensuring precise fit and reliable performance. The 1/2" length and No. 4 screw size provide optimal fastening dimensions for various applications. Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, these fasteners are suitable for global distribution and use in regulated industries. The thread cutting tapping screw Type F design follows industry standards for self-tapping fasteners in metallic materials.
