Standard Hex Washer Head Drill Bit Screw 4.2x50 mm 500-Piece Pack
Standard Hex Washer Head Drill Bit Screw 4.2x50 mm 500-Piece Pack
SKU ÜRÜN KODU: ÜRÜN KODU:A101410
BİZE ULAŞINStandard Countersunk Head Self-Drilling Screw 4.2x50 mm (Pack of 500);
The Standard Countersunk Head (CSK) Self-Drilling Screw 4.2x50 mm is a high-performance fastener specifically designed for quickly securing metal structures and different materials (from metal to wood, to plastic) to each other or to supporting structures. Thanks to its self-drilling (smart screw) feature, it speeds up the assembly process and provides practicality by eliminating the need for pre-drilling.
Material Properties and Technical Details
Feature |
Detail |
Description |
Size (Diameter x Length) |
4.2 x 50 mm |
The 4.2 mm diameter provides sufficient strength for a secure connection, while the 50 mm length offers ideal depth for joining two medium-thickness materials. |
Head Type |
Countersunk Head (CSK) |
The countersunk head ensures a flush and smooth finish when the screw is tightened. The Phillips (PZ2) bit compatibility facilitates high-torque screwing without slipping. |
Tip Type |
Self-Drilling (Smart Screw) |
The most distinctive feature of these screws is their drill bit tip, which drills its own hole and completes the tapping and fastening in a single step. This feature saves time. |
Material |
High-Quality Hardened and Tempered Steel |
The hardening process increases the screw's resistance to breakage and allows it to drill through different materials, including hard metals. |
Coating |
Minimum 8 micron Cr+3 Zinc Plating (Galvanized) |
Provides good resistance to corrosion (rust). Can be white or yellow. Suitable for indoor and outdoor use (exposed to moderate humidity). |
Hardness Levels |
Surface Hardness: 560 – 700\HV 0.3 |
High surface hardness guarantees the screw's drilling performance and durability. |
Standard |
DIN 7504P |
This is the international standard that defines the technical and dimensional characteristics of this type of screw. |
Package Quantity |
500 Pieces |
An economical packaging quantity for high-volume and professional use. |
Areas of Use and Functions
Self-drilling screws maximize assembly speed by combining drilling and fastening in a single operation:
Metal Assembly: Quick and secure fastening of thin to medium-thick metal sheets, galvanized or painted sheets (e.g., roof and facade cladding) to steel profiles or skeletal systems.
Plumbing and Ventilation (HVAC): Mounting of air duct (spiro) hanging systems, pipe clamps, and plumbing elements to supporting structures.
Aluminum and PVC Joinery: Joining aluminum/PVC profiles in door, window, and facade systems or mounting accessories.
General Assembly: Fastening wood, plastic, or other materials to a metal frame or structure.
Sectors of Use
This type of screw is a fundamental fastener in sectors where high performance, speed, and reliability are vital:
Steel Construction and Building: Light steel structures, industrial buildings, and steel frame assemblies.
Mechanical and Electrical Installation Sectors (MEP): Ventilation, heating, air conditioning (HVAC), and cable tray installation.
Aluminum and PVC Joinery Industry: Workshops and facilities manufacturing doors, windows, and facades.
Automotive and Industrial Assembly: Various industrial production and assembly applications where sheet metal parts need to be joined.
User Information and Advantages
Speed and Efficiency: Significantly reduces labor time and cost by eliminating the need for pre-drilling.
One-Step Assembly: Performs drilling, tapping, and fastening in a single action, which ensures standardization in assembly quality.
High Holding Power: Thanks to its hardened steel structure and strong threads, it creates a secure connection resistant to vibration and load.
Economical Solution: The pack of 500 offers economic efficiency for intensive and repetitive assembly work.
The 4.2x50 mm CSK Self-Drilling Screw is an industrial-standard solution that meets the expectations of professionals for speed, safety, and strength in metal and multi-material applications.
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