S-99461A972 Length 25 mm 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 reliability in various environments
- Efficient thread forming design creates strong, permanent threads in plastic materials without pre-tapping
- Optimized Phillips drive (No. 1 size) provides secure tool engagement and prevents cam-out during installation
- Pan head with 7mm diameter offers excellent bearing surface for secure fastening in plastic applications
- Full 25mm threading with 1.79mm pitch delivers maximum holding power and vibration resistance
- Environmental compliance assurance with RoHS 3 and REACH regulations for global industrial applications
- Precision blunt tip design facilitates easy starting and prevents material damage during installation
Professional Applications & Engineering Value
These M4 TRS tapping screws are specifically engineered for plastic assembly applications where traditional fastening methods often fail. The thread forming design eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating stronger, more reliable connections in thermoplastic materials. The 18-8 stainless steel construction provides exceptional corrosion resistance, making these Phillips drive screws ideal for electronics enclosures, automotive trim, consumer products, and outdoor equipment where environmental exposure is a concern. The combination of 1.79mm pitch threading and pan head design ensures optimal clamp load distribution and prevents pull-through in softer plastic substrates.
Specification Summary & Compliance
These metric thread forming screws feature M4 diameter with 25mm length and standard ISO metric threading. The TRS (Thread Rolling Screw) design follows industry-standard thread forming specifications for plastic materials. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial and consumer applications worldwide. The Phillips No. 1 drive and 7mm pan head diameter provide standardized installation compatibility across various assembly environments.
