Hex Head Self Drilling Roofing Screw Reduced No.1 RAL Painting

C1022 harden carbon steel Hex Washer Head Self Drilling Roofing Screw Reduced No.1 RAL Painting is one of main products of RUNYEE factory in China, it is designed specifically for fastening applications where a washer is required to provide additional support and distribute clamping force.

Runyee factory is also specialized in manufacturing good quality of C1022 Drywall Screw, Chipboard Screw, Self Drilling Screw, Self Tapping Screw, Concrete Screw, Roofing Screw, C10B21 Construction Screw and other fasteners like nuts, bolts, anchors, thread rods etc.

As a factory, manufacturer, supplier and exporter in China, we always insist on high quality, reliable delivery, competitive price, and good customer service. Our technical team confirms quality inspections for steel wire material, production process, heat treatment, plating and package.

The feature and application of Hex Head Self Drilling Roofing Screw Reduced No.1 RAL Painting of Runyee manufacturer factory in China.

Material: Hardened Carbon Steel C1022A
Head: Hex, Indented hex washer, Hex flange, Hexagon
Drive: Unslotted
Standard: DIN, ANSI
Size: 4.8x35mm is most popular
Thread: Standard, Fine Thread, Coarse Thread, Full Thread
Washer: Black or Gray Bonded EPDM Washer
Heat treatment and Coating: White Zinc Plated, RAL head painting
Package: Small box packing, Bulk packing with carton or bag, Wood carton, depends on customer’s requirements to customize package.
Minimum Order Quantity: 1000 kilograms for one size, one container could be with max 25 sizes of Hex Head Self Drilling Roofing Screw Reduced No.1 RAL Painting together. We will discuss some discounts price for cooperation if there’s big quantity.

Hex Head Self Drilling Roofing Screw Reduced No.1 RAL Painting is widely used on the surface of building materials, so it is also called roofing screw.

1. To fix roof and facade sheet metal to wood elements.
2. To fix decking to metal construction.
3. To avoid corrosion, screw is with zinc plated and assembling with bonded EPDM washer.

Hex Head Self Drilling Screw is often assembled with a bonded EPDM rubber washer. The washer can not only increase the contact area, reduce the pressure, protect parts and screws, but most importantly, it can upgrade the waterproof ability of the hex washer head screw. The washer isolates the water, making the screw and the inside of the material less prone to rust due to water ingress.

Runyee manufacturer with a production ranging from M2.5mm to M8.0mm, length up to 300mm provides a variety of specialized and standard screws as well as customized screws. Our production capability reaches around 1200 tons per month at 13000㎡ factory area.

Let’s be your reliable long-term partner in China if any interest in Hex Washer Head Self Drilling Roofing Screw Reduced No.1 RAL Painting, and warmly welcome to visit our factory.