Skip to Content

Browse

Certifications RoHS

LEKON ST4.2 Hexagon Washer Head Self-Drilling Screws Factory Custom Waterproof Roofing Tex Screws Manufacturer

Available for enquiry 5.0 · 3 reviews 88 sold
USD

20.00 20.0 USD 20.00

Not Available For Sale

Minimum order quantity: 1000 Units
  • Measurement system
  • Material
  • Grade
  • Thread Type
  • Head style
  • Finish (Specification)
  • Coating
  • Model number (Specification)
  • Place of origin
  • Standard
  • Head Type
  • Application
  • Size
  • Packing
  • Service
  • Advantage
  • Selling Units
  • Single package size
  • Single gross weight
  • Type (Product option)
  • Length (Product option)
  • Thread size (Product option)
  • Certifications & Compliance

This combination is unavailable.

Key attributes

View all
Measurement system
Inch, Metric, Impérial
Material
Stainless Steel, Metal, Steel, Carbon Steel, 304 stainless steel, Iron, 316 Stainless Steel, 410 Stainless Steel, C1022, Stainlesss Steel Carbon Steel Iron
Grade
Carbon Steel / Stainless Steel / Iron
Thread Type
standard thread
Head style
Hex
Finish (Specification)
Zinc Plated, Other, Zinc, Plain, Black Oxide, Plating, Black, Nickel Plated, Phosphate, Blue-Dyed, Zinc-Flake Coated, Zinc-Aluminum Coated
Product description

Product details

Hex Flange Head: Provides stability and easy installation for metal roofing.

Self-Drilling Design: Easy insertion into corrugated steel sheets without pre-drilling.

Stainless Steel Material: Durability and resistance to corrosion for long-lasting use.

Zinc-Flake Coated: Enhanced protection against rust and wear for improved lifespan.

Customizable Sizes: Accommodates various roof construction needs.

Hardened drill point cuts directly through steel sheet in one motion - no pilot hole needed, faster installation and lower labor cost on metal roofing projects.

Integrated hex flange head spreads clamping force evenly, resists wind uplift and prevents over-tightening damage to corrugated steel roof sheets.

Bonded EPDM rubber washer seals every fixing point against rain, UV and aging, long-lasting leak-proof performance for roof sheet applications.

Available in zinc plated carbon steel, hot dip galvanized or SS410 stainless steel versions to match coastal, industrial and high-humidity environments.

Ideal fasteners for corrugated metal roofing, color steel plate, sandwich panels, polycarbonate sheets and steel structure buildings.

Complete size range with OEM colors, packing and custom lengths available, factory wholesale for bulk projects.

Hex flange head self drilling screws with bonded EPDM rubber washers are purpose-built for metal roofing installation. The hardened drill point penetrates steel sheet without pre-drilling, while the integrated hex flange head and EPDM washer deliver even clamping force and leak-proof sealing. Widely used for corrugated steel roof sheets, sandwich panels and steel structures, our self drilling roofing screws are available in zinc plated, galvanized and stainless steel SS410 finishes to suit different environments. OEM size, color and packing are supported for bulk orders.

Certifications & compliance
RoHS
RoHS compliant
Frequently asked questions

Fasteners. For example, screws, bolts, nuts, washers, rivets, nails, etc.

Yes, we provide samples to help you evaluate our products. - For standard products in stock, we offer free samples within 3 days, but the customer is responsible for the shipping cost. - For custom-made products, we charge a one-time tooling fee and deliver samples within 15 working days. We cover the shipping cost for smaller samples to ensure a smooth approval process.

Our lead time depends on the product type and quantity: - 3-5 working days for standard items in stock. - 15-20 working days for custom orders or large quantities. We prioritize efficiency without compromising quality.

We usually respond with technical feedback or quotation within 24 hours after receiving your information.

Yes. We support prototype, small and medium batch production, especially for custom and non-standard fasteners.

You can send us your BOM list, drawings (PDF / CAD / STEP), or samples.We review items one by one and provide a clear quotation.

Absolutely! As a leading OEM manufacturer, we specialize in fastener customization. Whether you need unique sizes, materials, finishes, or thread types, we work closely with you to create screws that meet your exact requirements.
Description images
Product detail
Product detail
Product detail
Product detail
RoHS
Packaging and fulfilment
  • Step 1

    Payment and order readiness

    Minimum order: 1000 Units

    Payment terms, specifications, and order details are confirmed before preparation begins.

  • Step 2

    Preparation

    31 days

  • Step 3

    Packaging and dispatch

    Packaging details are available on request.

    Final packing, freight, and delivery dates are confirmed before dispatch.

Technical specifications
Other details 23 fields
Measurement system
Inch, Metric, Impérial
Material
Stainless Steel, Metal, Steel, Carbon Steel, 304 stainless steel, Iron, 316 Stainless Steel, 410 Stainless Steel, C1022, Stainlesss Steel Carbon Steel Iron
Grade
Carbon Steel / Stainless Steel / Iron
Thread Type
standard thread
Head style
Hex
Finish (Specification)
Zinc Plated, Other, Zinc, Plain, Black Oxide, Plating, Black, Nickel Plated, Phosphate, Blue-Dyed, Zinc-Flake Coated, Zinc-Aluminum Coated
Coating
Coated, Zinc-Plated, Zinc, Nickel, Black, Zinc Plated, White Zinc, Yellow Zinc, Zinc Coating, Dacromet Coated, Zinc Yellow
Model number (Specification)
LK-LJFLD
Place of origin
China, Guangdong
Standard
ISO.ANSI. API.BS.DIN.JIS.GB.etc
Head Type
Hex Washer
Application
roofing, Building Construction, Steel structure, Metal Sheet Fixing
Size
Customized Sizes Acceptable
Packing
Small Packing+Carton Packing+Pallet
Service
OEM ODM Custom Service
Advantage
One-stop Customized Service
Selling Units
Single item
Single package size
10X6X2 cm
Single gross weight
0.07 kg
Type (Product option)
Self-Drilling Screws, Hex Washer Head Self Drilling Screws
Length (Product option)
25mm, 60 mm, 16mm, 45 mm, 32mm, 100 mm, 150 mm, Others, 75mm, 19mm, 38mm, 50mm, 22mm, 125mm
Thread size (Product option)
M6.3, M5.5, M4.2, M4.8, Others, ST4.2, ST4.8, ST5.5, ST6.3
Certifications & Compliance
RoHS
Lead time
31 days
Minimum order
1000 Units

Customer reviews

5.0 (3)
R
Riley P. Verified buyer Repeat buyer
Philippines Philippines ·

Everything arrived as expected. Good product quality and clear communication. Miffy made the process easy.

R
Riley M. Verified buyer Repeat buyer
United States United States ·

Good experience overall. The fasteners are durable and well packed.

D
Drew S. Verified buyer Repeat buyer
United Kingdom United Kingdom ·

We are satisfied with the quality of the fasteners. The screws and bolts are well manufactured and meet our standards. The seller is professional and easy to communicate with.

Write a review

Up to 5 JPG, PNG or WebP images; 5 MB each.

Request custom sourcing

Can’t find what you’re looking for? Share the requirement and our sourcing team will find the right industrial product.

Best-match productsCompetitive quotesFast turnaround
Request custom sourcing

Upload your requirements

Upload your BOM, BOE, RFQ or requirement list and get one consolidated response.

XLS, XLSX, CSV, PDF, DOC or images · Max 10MB each or drag and drop
XLSX
Files are sent securely.