Meridyen Rysb Pan Head Self-Drilling Screw 3.9×25 mm 1000-piece Pack

Meridyen RYSB Pan Head Self-Drilling Screw 3.9×25 mm (Pack of 1000)

Long Grip for Multi-Layer Thin Material Assemblies

Meridyen RYSB Pan Head Self-Drilling Screw 3.9×25 mm is a longer version of the short self-drilling screw series. With a diameter of $3.9 \text{ mm}$ and a length of $25 \text{ mm}$, it is ideal for thin metal and profile assemblies where more layers need to be joined or a longer distance is required to reach the carrier, where $19 \text{ mm}$ screws would not provide sufficient thread depth. It maximizes assembly speed by eliminating the need for pre-drilling, while its wide pan head provides a firm grip without damaging the material.

Purpose and Key Features

The main purpose of the Meridyen RYSB Screw is to join two or more layers of thin sheet metal, profiles, or plastic/light wood to metal carriers 1 mm to 3 mm thick, without the need for pre-drilling, and with more reliable thread depth thanks to its longer length.

Screw Type: Self-Drilling Screw (Smart Screw):

The drill bit at the tip of the screw eliminates the need for the user to pre-drill. This feature combines drilling the steel profile, tapping, and fastening the material in a single step.

Head Type: Pan Head (Wide Surface Head):

The wide and flat head design (pan head) prevents tearing in thin materials and provides $\text{high gripping power}$ by pressing the material onto the surface over a large area. It does not require the use of an additional washer.

Size and Application Area:

3.9 mm Diameter x 25 mm Length: The 3.9 mm diameter offers sufficient structural strength, while the 25 mm length provides a reliable gripping depth into the carrier profile, especially where $\text{extra thicknesses}$ need to be overcome, such as insulation, anti-vibration material, or multiple sheet layers.

Surface Coating:

Typically zinc (galvanized) coated for corrosion resistance. This coating extends the life of the screw in humid environments and indoor applications.

Drive Type: Compatible with Phillips (PH2) or Pozi (PZ2) drive for quick and easy installation.

Areas of Use and Industries

The 25 mm length is critical for multi-layer and deeper grip requirements in thin metal and profile assemblies.

Industry Sector	Application Areas
Drywall and Partition Wall Systems	Fastening multiple metal profiles on top of each other or connecting drywall to the carrier profile behind it.
PVC and Window Systems	Situations where the screw length needs to exceed the PVC thickness when connecting to the metal support sheet inside PVC profiles.
Furniture Manufacturing	Assembly of shelving systems, counters, and display units using thicker sheet metal and profiles.
HVAC and Ventilation	Assembly of air duct connections with thick insulation or multiple layers.
Automotive and Electrical Panels	Securing multi-layer sheet metal panels and electrical boxes to the frame.

Product Description

The Meridyen RYSB Pan Head Self-Drilling Screw, with a 3.9 mm diameter and 25 mm length, is designed to provide the extra grip depth required in multi-layer thin metal and profile assemblies. Its self-drilling design eliminates the need for pre-drilling and reduces the assembly process to a single step. The wide Pan Head design prevents cracking on the surface of thin materials and provides a strong connection with a large contact area. It features a zinc (galvanized) coating for corrosion resistance. With its economical pack of 1000 pieces, it is a practical solution for reliable, long-lasting, and high-volume assembly needs in PVC joinery, drywall systems, furniture, and light metal construction industries.