DIN7504K Hex Washer Head Self Drilling Screws | Landwide
Premium DIN7504K/L hex washer head self drilling screws. Precision drill points for steel-to-steel fastening. Multiple point sizes available. 29 years expertise.
Ind. Hex Washer Head DIN7504K, DIN7504L Self Drilling Screw
A01
DIN7504K, DIN7504L
Landwide Self-Drilling Screws - Versatile Fastening for Multiple Materials
Landwide's indented hex washer head self-drilling screws are designed for easier, faster driving. The specialized drilling point allows for reduced effort during installation in a variety of materials as steel, wood, sheet metal and more without pre-drilling. Their self-drilling function speeds installation time.
These adaptable screws are ideal for constructing and repairing decks, fences, roofing, siding, frameworks, and other projects requiring secure fastening to different materials.
Made by Landwide, these popular self-drilling screws are known for versatility, durability, and quality construction.
*Unique Point-to-Thread Design Provides maximum pullout strength and prevents stripout.
*Precision Convex Drill Point Improves drilling performance while requiring less effort.
*Non-Walking Point Provides fast metal engagement.
*Tough & Weather Resistant From basic zinc coating to 3000 hours SST, a variety of coating options available to fit your environment.
*Plus EPDM bonded washer, screw will become sutiable for exterior environment.
Application
- Fixing cladding and roofing applications to hot and cold rolled purlins and rails.
- Fastening liner panels and general components to steel.
- Fixing steel to steel.
Point Selection
Landwide's drill point are well engineered for fast drilling with less effort needed. Select the point size base on your light / medium / heavy duty work.
| DRILL POINT# | DRILLING CAPACITY | APPLICATION |
|---|---|---|
| REDUCED POINT | 2MM (1+1) | Light duty steel to steel |
| #3 | 5 MM (2+3) | Medium duty steel to steel |
| #4 | 8MM | 8 mm steel to steel |
| #5 | 12MM | Heavy duty steel to steel |
| #6 | >12MM | Customized for thicker application |
Specifications
- Nominal Size
M3.5, M3.9, M4.2, M4.5, M4.8, M5.5, M6.3. - Screw Length
9.5mm ~ 300mm
#6, #7, #8, #9, #10, #12, #14 (1/4").
7/16" ~ 11".
- Gallery
Self drilling screw Ind Hex Washer head
Self drilling screw w/Bonded Washer
Self drilling screw w/2 pcs washers
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A02
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A01 - Self Drilling Screw Hex Washer Head
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Download- FAQ
What types of screws do you manufacture?
We manufacture a wide range of screws, including self-drilling screws, drywall screws, decking screws, self-tapping screws, roofing screws, stainless steel...
How Do I Select the Right Drill Point Size for Different Steel Thickness Applications?
Landwide's engineered drill point system simplifies selection: use Reduced Point for 2mm light-duty, #3 point for 5mm medium-duty, #4 for 8mm, #5 for 12mm heavy-duty, or #6 for custom thicker applications. Our experienced technical team provides fast answers to ensure you choose the optimal drilling capacity for your steel-to-steel projects, reducing installation time while maximizing pullout strength. Contact us for project-specific recommendations.
Specifically designed for fixing cladding and roofing applications to hot and cold rolled purlins and rails, fastening liner panels to steel, and general steel-to-steel connections, these self-drilling screws excel in constructing and repairing decks, fences, roofing, siding, and frameworks. With tough weather-resistant coatings ranging from basic zinc to 3000 hours salt spray test rated finishes, plus optional EPDM bonded washers for exterior environments, Landwide ensures durability and quality construction backed by 29 years of manufacturing expertise. Our experienced team provides quick technical answers and flexible customization options including private packaging and customized screw designs to meet your specific project requirements.