EN
Integrated hardened drill point directly drills through steel sheet, light steel keel and color steel tile. Cut working steps and labor cost greatly, widely recognized by bolts and nuts manufacturers for construction matching.
Whole stainless steel structure resists moisture, coastal salt fog and outdoor harsh weather, no rust seizure or breakage for long-term outdoor fixing. Better durability than ordinary coated screws, no frequent maintenance needed.
The head sinks fully into panel surface after tightening, no protruding edge to damage waterproof layer and decorative materials, neat finished effect for roofing and curtain wall projects.
Smooth chip removal during drilling without thread slipping or stripping. Firm bite on metal sheets, stable fastening even under vibration; can work independently without matching locking nuts or extra lock washers.
Suitable for 0.5 6mm steel sheet, light steel frame, aluminum alloy, color steel fence and sunroom installation. Direct supply from factory, support small retail and large bulk project orders.
410 Stainless Steel Zinc Plated Metric Countersunk Head Drill Tail Cross Flat Head Self Drilling Screw Dovetail Wire All Sizes
This 410 stainless steel self drilling screw features a countersunk flat head with cross drive and zinc plated finish. The integrated drill point enables direct penetration through steel sheet and light gauge framing without pre-drilling. Designed for roofing, curtain wall, and metal building applications, this fastener combines drilling and fastening into a single operation, supporting efficient installation workflows.
Spu:
1601618092383
- Overview
- Recommended Products
Integrated Drill Point Technology: The self drilling design eliminates the need for separate drilling and tapping operations. This reduces tool changeovers and speeds up installation, making it particularly valuable for large-scale construction and roofing projects where efficiency is important.
410 Stainless Steel Construction: The martensitic alloy provides good hardness for the drill point while maintaining adequate corrosion resistance for exterior use. This material selection supports long-term performance in outdoor environments without the need for frequent maintenance interventions.
Countersunk Head Profile: The flat head design ensures a flush surface finish after installation. This helps protect waterproof layers, avoids snagging points, and provides a clean appearance for finished roofing and facade work.
Zinc Plated Surface Protection: The additional coating enhances corrosion resistance, providing an extra margin of protection in humid or salt-affected environments. The zinc layer also offers a degree of sacrificial protection at any scratch points.
Single-Step Installation: By combining drilling and fastening, these screws reduce installation time compared to traditional methods requiring separate drilling and screw driving steps. This can contribute to lower labor costs on large projects.
Reliable Chip Removal: The flute design facilitates smooth chip evacuation during drilling, which helps prevent thread binding and supports consistent thread engagement with the base material.
Food Processing and Canning Machinery: In food environments, these screws are used for equipment housing assembly, panel mounting, and structural supports. The flush head design helps avoid food entrapment points, supporting hygiene protocols. The corrosion-resistant properties of 410 stainless steel with zinc plating offer good performance in wet processing areas.
Conveying Equipment: For conveyor systems, these fasteners are suitable for attaching guard rails, sensor mounts, and cover panels to metal frames. The self drilling capability simplifies field modifications and equipment reconfiguration.
Medical Apparatus: In medical equipment assembly, the flush head profile provides clean, smooth surfaces that support infection control requirements. The fasteners are used in equipment carts, housing panels, and mounting brackets.
Packaging Machinery: Packaging equipment often requires fasteners that can be installed quickly in steel frames. The single-step drilling and fastening reduces assembly time during equipment manufacturing and maintenance.
Water Treatment Industry: In water treatment facilities, these screws are used for structural mounting, panel attachment, and support installations. The zinc plating provides additional protection in humid environments.
Chemical Equipment: For chemical processing facilities, these fasteners offer good resistance to mild chemical exposure. The countersunk profile helps avoid chemical entrapment at fastener locations.
Machine Parts: In general machinery manufacturing, these screws are used for frame assembly, panel mounting, and component attachment where drilling and fastening efficiency is valued.
Ship Manufacturing: In interior marine applications, such as cabin fittings and equipment mounting, these screws provide good performance in salt-spray environments. The flush head design supports clean finished surfaces in occupied spaces.
Construction and Metal Building: For steel structure assembly, metal roofing installation, and curtain wall systems, these self drilling screws are widely used. The integrated drill point penetrates light gauge steel efficiently, while the countersunk head provides weather-resistant, flush surface finishes.
About Product
This self drilling screw is manufactured from 410 stainless steel, a martensitic alloy known for its hardenability and good mechanical properties. The 410 grade offers a balance of strength and corrosion resistance, making it suitable for exterior applications where both performance and durability are considerations. The material undergoes a heat treatment process to achieve the hardness required for the drill point function, typically reaching a core hardness of HRC 38-42 on the Rockwell scale.
The integrated drill point is the defining feature of this screw. Unlike self tapping screws that require a pilot hole, self drilling screws incorporate a drill bit-like tip that cuts its own hole as it is driven. The drill point geometry includes cutting edges and flutes that remove material during penetration, allowing the screw to pass through steel sheet, light steel keel, and color steel tile in a single operation. The drill point length and diameter are designed to match the screw shank size, ensuring smooth transition from drilling to threading.
The countersunk flat head profile enables the screw to sit flush with the work surface after tightening. This is particularly important in roofing and curtain wall applications, where protruding heads can damage waterproof membranes or affect the appearance of finished surfaces. The cross drive recess is designed to provide good torque transfer during high-speed power driving, reducing the risk of driver slippage.
The zinc plated surface treatment adds a layer of protection to the 410 stainless steel substrate. This coating provides an additional barrier against surface corrosion, particularly in outdoor environments where moisture and salt exposure are factors. The combination of stainless steel substrate and zinc plating offers a dual protection system that extends service life.
Highlight
Key Advantages
Application Scenarios
The versatility of these self drilling screws supports deployment across multiple industrial and construction sectors:
