S-99461A330 Length 1/4" 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ensuring long-term durability in harsh environments.
- Excellent thread-forming capability with Tri-Lobe shank design, reducing installation torque and preventing material stress in plastics.
- Secure and reliable fastening through fully threaded right-hand design with 16 TPI precision, enhancing pull-out resistance.
- Effortless installation with Phillips No. 2 drive, providing common tool compatibility and reducing cam-out risks.
- Optimized for plastic applications with blunt tip and thread-forming TRS type, minimizing cracking and ensuring strong hold.
- Environmental compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.
- Consistent performance with standardized pan head and dimensions, ensuring repeatable results in high-volume assembly.
Professional Applications & Engineering Value
This No. 8 TRS Tri-Lobe tapping screw is engineered to address common challenges in plastic fastening, where material integrity and vibration resistance are critical. The 18-8 Stainless Steel offers excellent corrosion resistance, ideal for outdoor or humid conditions, while the Tri-Lobe thread-forming design displaces plastic material without creating chips, reducing the risk of cracking in brittle polymers. With a Phillips drive and precise 16 TPI threading, it ensures quick, secure installations in electronics enclosures, automotive trim, and consumer products, providing reliable thread-forming screw performance that maintains clamp force under dynamic loads.
Specification Summary & Compliance
This screw features a No. 8 size with 1/4" length, right-hand threads, and 16 TPI precision, adhering to standard inch measurements. The Tri-Lobe shank cross-section and thread-forming (TRS) tapping method ensure consistent performance in plastics, compatible with a No. 29 drill bit (0.136" diameter). It fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing safe and restricted-substance-free use in industrial applications.
