Hebei Kappa Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of hex flange head self drilling screws with rubber soft washer in China. Welcome to buy bulk high quality hex flange head self drilling screws with rubber soft washer made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
The Hex Flange Head Self-Drilling Screw with Rubber Washer is a high-efficiency fastening solution designed for one-step installation. The pre-assembled rubber washer creates a weatherproof and vibration-resistant seal, preventing moisture ingress and maintaining joint integrity in demanding environments.
Key Specifications
|
Parameter |
Details |
|
Head Type |
Hex Flange Head |
|
Thread Type |
Self-drilling (drill point) |
|
Washer Material |
Rubber |
|
Diameter Options |
4.2mm, 5.5mm, 6.3mm (custom sizes available) |
|
Length Range |
16mm – 200mm |
|
Material |
Carbon steel |
|
Surface Treatment |
Zinc plated, yellow zinc, or custom finishes |
Key Features & Benefits
|
Feature |
Benefit |
|
Self-drilling point |
Eliminates pre-drilling, reduces installation time by up to 50% |
|
Hex flange head |
Enables high torque transmission; broad bearing surface prevents pull-through |
|
Rubber washer |
Provides watertight seal, absorbs vibration, prevents galvanic corrosion |
|
Wide size range |
Accommodates various material thicknesses from 0.5mm to 12mm |
|
Factory direct pricing |
Competitive cost without compromising quality |
Factory picture&Quality Control
Quality Assurance
Strict inspection from raw material to finished product
Salt spray testing for corrosion resistance verification
Torque and hardness testing to ensure drill point performance
ISO 9001:2015 certified quality management system
Customization & Service
Custom diameters and lengths
Various surface finishes (white zinc, yellow zinc, black, etc.)
Packaging solutions – bulk cartons, pallets, retail-ready blister packs, or custom branding
After-Sales Support,Full product traceability
24-hour response to quality inquiries
Prompt replacement or credit arrangements
FAQ
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