邯鄲釘釘貿易有限公司 (喜力德) 

Certainly! Here’s a detailed business English description of roofing screws, specifically focusing on Hex Head Drilling Screws with Wings and Steel/EPDM Dome Washers, covering aspects such as material, surface treatment, function, application scenarios, and advantages:

Roofing Screws: Hex Head Drilling Screws with Wings & Steel/EPDM Dome Washers
Material:
Hex Head Drilling Screws with Wings:

Steel: Typically made from high-grade carbon steel or stainless steel for superior strength and durability.
Wings: Integrated steel wings that assist in creating a pilot hole through metal or wood, reducing the risk of material damage.
Steel/EPDM Dome Washers:

Steel: High-quality galvanized or stainless steel to provide robust support and corrosion resistance.
EPDM (Ethylene Propylene Diene Monomer): A synthetic rubber known for its elasticity, UV resistance, and weatherproof properties.
Surface Treatment:
Screws:

Zinc Plating: Provides a protective layer against rust and corrosion, enhancing the longevity of the screws.
Galvanization: A process that involves coating the screws with a layer of zinc to prevent oxidation and rust, especially in outdoor and marine environments.
Other Coatings: Options such as ceramic or phosphate coatings may be available for added corrosion resistance and enhanced performance.
Washers:

Galvanized Steel: The steel part of the washer is often galvanized to resist corrosion.
EPDM Coating: The rubber part remains untreated to maintain its flexibility and sealing properties.
Function:
Hex Head Drilling Screws with Wings:

Designed to drill their own hole and secure materials without the need for pre-drilling, thanks to the integrated wings.
The hex head allows for easy and secure driving using a hex driver, ensuring a tight and stable fit.
Steel/EPDM Dome Washers:

The dome shape provides a broad bearing surface, distributing the load and protecting the roofing material.
The EPDM layer ensures a watertight seal around the screw, preventing water ingress and subsequent corrosion.
Application Scenarios:
Hex Head Drilling Screws with Wings:

Ideal for fastening metal roofing sheets to wood or metal substrates.
Commonly used in construction projects where quick and efficient installation is required, such as in commercial and residential buildings, warehouses, and industrial facilities.
Steel/EPDM Dome Washers:

Used in conjunction with roofing screws to enhance sealing and load distribution.
Suitable for any roofing application that demands high durability and weather resistance, including metal roofs, solar panel mounts, and more.
Advantages:
Hex Head Drilling Screws with Wings:

Efficiency: Wings help in creating a clean pilot hole, reducing installation time and effort.
Versatility: Suitable for various substrates including metal and wood.
Strength: High tensile strength ensures secure fastening even in demanding conditions.
Steel/EPDM Dome Washers:

Durability: Combines the strength of steel with the flexibility and resilience of EPDM.
Weather Resistance: Excellent performance in extreme temperatures and exposure to UV radiation and ozone.
Protection: Provides a watertight seal, preventing water ingress and protecting against corrosion.