S-99512A619 Length 3/16" 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 torque transmission with T10 Torx drive for secure installation and reduced cam-out risk
- Excellent corrosion resistance through zinc-plated steel construction for extended service life
- Clean installation in plastics with TRS thread forming design that eliminates chips and debris
- Enhanced holding power from tri-lobe shank design that creates strong, permanent threads
- Optimized plastic fastening with No. 4 size and 3/16" length for reliable plastic assembly applications
- Secure fastening performance with 20 threads per inch providing excellent grip in plastic materials
- Environmental compliance assurance meeting RoHS 3 and REACH standards for regulated applications
Professional Applications & Engineering Value
These No. 4 x 3/16" zinc-plated steel tapping screws are specifically engineered for plastic fastening applications where traditional fasteners fail. The TRS thread forming technology creates strong, permanent threads in plastic materials without generating chips or debris that can contaminate sensitive assemblies. The T10 Torx drive system ensures maximum torque transmission during installation, reducing the risk of stripped heads and failed installations. The tri-lobe shank cross-section displaces plastic material during installation, creating a secure, vibration-resistant connection that maintains integrity in demanding environments. These screws are ideal for plastic assembly in electronics, automotive components, and consumer products where reliable fastening and corrosion resistance are critical.
Specification Summary & Compliance
These thread forming screws feature a No. 4 thread diameter (0.112") with 20 threads per inch and 3/16" length, designed for use with No. 37 drill bit (0.104" diameter). The zinc-plated steel construction provides corrosion protection while the pan head design with T10 Torx drive ensures optimal installation performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, making them suitable for regulated industries and international markets requiring strict material compliance.
