S-90385A199 Length 1" ASME B18.6.3 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 zinc-plated steel construction, extending service life in various environments.
- Efficient thread-forming design (DST type) creates strong, reliable threads in plastic without pre-tapping, reducing assembly time.
- Optimized for plastic materials with a blunt tip and full threading to prevent cracking and ensure maximum holding power.
- Easy installation and removal thanks to the Phillips No. 2 drive and standard pan head, minimizing tool slippage.
- Precise fit and consistent performance with a 0.164" thread diameter and 18 TPI, ensuring secure fastening in pre-drilled No. 30 holes.
- Compliance with industry standards including ASME B18.6.3, guaranteeing dimensional accuracy and reliability.
- Environmentally responsible manufacturing with RoHS 3 compliance, meeting strict regulatory requirements.
Professional Applications & Engineering Value
This No. 8-18 x 1" zinc-plated steel tapping screw is engineered to address common challenges in plastic fastening, such as material stress and thread stripping. The thread-forming (DST) design with a blunt tip displaces plastic material during installation, creating tight, durable threads that resist loosening under vibration. Made from zinc-plated steel, it offers excellent corrosion protection, making it ideal for industrial equipment, automotive components, and electronic enclosures where reliability is critical. The Phillips drive and pan head provide secure torque transmission, reducing the risk of cam-out and ensuring consistent performance in high-volume assembly lines.
Specification Summary & Compliance
This screw features a 0.164" thread diameter with 18 TPI and full threading for uniform load distribution. It is designed for use with a No. 30 drill bit (0.1285" diameter) and complies with ASME B18.6.3 standards for dimensional accuracy. Additionally, it meets RoHS 3 (2015/863/EU) environmental regulations, ensuring it is free from hazardous substances.
