✔️ Material:Stainless Steel(SS)304/Carbon steel
✔️ Surface:Plain/multicolor
✔️Head:HEX Bolt
✔️Grade:4.8/8.8
Product introduce:
The Hex Head Self Drilling Screw With EPDM Washer is a specialized fastener. It combines the functionality of a self – drilling screw with the added benefits of an Ethylene – Propylene – Diene Monomer (EPDM) washer.
The screw itself has a hex – shaped head, which allows for easy tightening using a wrench or socket. Its self – drilling feature enables it to penetrate materials like metal, wood, or plastic without the need for pre – drilling, thanks to its sharp, threaded tip. The EPDM washer is placed beneath the head of the screw. EPDM is a synthetic rubber known for its excellent weather resistance, durability, and resistance to UV radiation, ozone, and many chemicals. This washer provides a seal against water, dust, and other elements, enhancing the overall performance and longevity of the fastened joint. It also helps to distribute the clamping force evenly, reducing the risk of material damage.
How to Use
- Material and Size Selection: Determine the appropriate size of the screw based on the thickness of the material you are fastening. Consider the load – bearing requirements and choose a screw with sufficient strength. Ensure that the EPDM washer is compatible with the environment where the screw will be used. For example, in outdoor applications, the weather – resistant properties of EPDM are particularly beneficial.
- Surface Preparation: Clean the surface of the material to be fastened. Remove any dirt, grease, or debris that could affect the screw’s ability to penetrate and create a secure hold.
- Installation: Position the screw at the desired location on the material. Use a hex – head socket or wrench to start driving the screw. Apply firm and steady pressure while rotating the screw. As the screw drills through the material, the EPDM washer will compress slightly, creating a seal. Continue tightening until the screw is firmly in place, but be careful not to overtighten, which could damage the material or the washer.
- Inspection: After installation, check that the EPDM washer is properly seated and there are no signs of damage. Ensure that the screw is tight and providing a secure hold. Periodically inspect the fastened area, especially in harsh environments, to make sure the EPDM washer continues to provide an effective seal.









