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Self-Drilling Screws

Widely used in steel structure engineering, roof panel installation, color steel plates, sandwich panels, doors and windows, ventilation ducts, solar brackets, mechanical equipment, and construction engineering.

Self-Drilling Screw
Self-Drilling Screws

Product Introduction

Self-Drilling Screws are high-efficiency fasteners that integrate drilling, tapping, and fastening into one. The screw tail features a drill point that can directly penetrate metal sheets, steel structures, and other materials without pre-drilling, greatly improving construction efficiency and reducing installation costs.

Widely used in steel structure engineering, roof panel installation, color steel plates, sandwich panels, doors and windows, ventilation ducts, solar brackets, mechanical equipment, and construction engineering.


Product Features

✔ No pre-drilling required, improving installation efficiency

✔ Drilling, tapping, and locking completed in one step

✔ Fast installation, saving labor costs

✔ Sharp threads, secure locking, not easy to loosen

✔ Made of high-strength materials, strong load-bearing capacity

✔ Rust-proof and corrosion-resistant, suitable for indoor and outdoor environments

✔ Can be equipped with EPDM waterproof washers for excellent sealing and leak prevention


Product Specifications

Product Name
Self-Drilling Screw

Standard
DIN, ISO, ANSI, ASME, or customized according to customer drawings

Size Range
ST2.9 – ST6.3

Length
9.5mm – 300mm

Material

  • Carbon Steel (C1022A)
  • Stainless Steel 304
  • Stainless Steel 316

Heat Treatment
Carburizing and quenching

Hardness
Complies with international standards

Surface Treatment

  • Zinc Plated
  • Yellow Zinc Plated
  • Mechanical Galvanized
  • Ruspert Coating
  • Dacromet
  • Geomet
  • Hot Dip Galvanized
  • Black Phosphate

Drive Type

  • Phillips
  • Hex Head
  • Torx
  • Square Drive

Product Types

  • Hex Head Self-Drilling Screw
  • Pan Head Self-Drilling Screw
  • Countersunk Head Self-Drilling Screw
  • Wafer Head Self-Drilling Screw
  • Truss Head Self-Drilling Screw
  • Roofing Screw with EPDM Washer
  • Wing Self-Drilling Screw
  • Bi-Metal Self-Drilling Screw

Common Drill Point Types

  • #1 Drill Point
  • #2 Drill Point
  • #3 Drill Point
  • #4 Drill Point
  • #5 Drill Point

Different drill point types can be selected based on steel plate thickness.


Application Areas

  • Steel Structure Construction
  • Roofing & Cladding
  • Sandwich Panels
  • Metal Buildings
  • HVAC Systems
  • Solar Mounting Systems
  • Curtain Wall Systems
  • Aluminum Profiles
  • Industrial Equipment
  • Prefabricated Buildings

Product Advantages

High Efficiency

Drilling, tapping, and fastening are completed simultaneously, greatly reducing installation time.

Excellent Drilling Performance

Sharp drill point quickly penetrates steel plates, reducing installation resistance.

Secure Locking

Precision thread design ensures firm locking and prevents stripping.

Superior Corrosion Resistance

Multiple surface treatment options available, suitable for humid, high salt spray, and other harsh environments.

Customization Support

Custom sizes, materials, head types, surface treatments, and packaging available upon request.


Quality Control

  • Raw material inspection
  • Dimensional inspection
  • Hardness testing
  • Drilling performance testing
  • Torque testing
  • Salt spray testing
  • Coating thickness inspection
  • Full traceability throughout the process

Packaging

  • 100 pcs / Box
  • 200 pcs / Box
  • 500 pcs / Box
  • 1000 pcs / Box
  • Small Box + Carton
  • Bulk Packing
  • Pallet Packing
  • OEM Packaging Available

Product facts

Procurement & delivery information

MOQ

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MOQ from 1 kg for standard sizes. Trial orders are welcome. Custom non-standard parts are confirmed based on drawings and the production process; small-batch samples can be arranged.

Stock

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Large stock. Bolts, nuts, washers, expansion anchors, threaded rods and other common specifications are well stocked for ready shipment or fast replenishment.

Lead time

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Large stock of common specifications — ready for fast dispatch after order confirmation. Standard products usually take 15–30 days when production is needed. Custom non-standard orders have short lead times, confirmed after drawing review.

Materials

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A variety of carbon steel, stainless steel, and alloy steel materials are available, including: Q195, Q235, 35#, 45#, 35CrMo, 42CrMo, C1022, 304, 316, etc. Other specified materials can be produced according to customer drawings, standards, or technical requirements.

Grades

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Fasteners of different strength grades are available, including: 4.8, 5.8, 6.8, 8.8, 10.9, 12.9, etc. Nuts can be provided in grades 4, 6, 8, 10, 12, etc., depending on product standards and customer requirements.

Standards

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Production can be carried out according to international and national standards, including: DIN, ISO, GB, ANSI/ASME, ASTM, BS, JIS, etc. We also support customization of non-standard fasteners based on customer drawings, samples, or technical parameters.

Surface finishes

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A variety of surface treatments are available, including: clear zinc, yellow zinc, black zinc, black oxide, hot-dip galvanizing, Dacromet, nickel plating, chrome plating, phosphating, mechanical galvanizing, etc. Salt spray time, coating thickness, and anti-corrosion requirements can be confirmed according to customer requirements.

Production equipment

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Equipped with cold heading, thread rolling, die pressing, machining, heat treatment, and surface treatment supporting equipment. We can complete the entire production process from raw materials, forming, thread processing, heat treatment to packaging and shipping, and arrange the corresponding production process according to product type.

Inspection, certificates & reports

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Products can be inspected for dimensions, threads, hardness, tensile strength, torque, coating thickness, and salt spray before production and shipment. According to order requirements, we can provide: material certificates, dimensional inspection reports, hardness test reports, tensile test reports, salt spray test reports, coating inspection reports, and third-party inspection reports. Relevant certificates and inspection items are provided according to product standards and customer requirements.

Packaging

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A variety of export packaging methods are supported, including: small boxes + outer cartons, woven bags, cartons, wooden cases, pallets, bulk packaging, and custom packaging. We can provide customer brand packaging: logo, color boxes, labels, barcodes, shipping marks, and OEM packaging. Packaging methods will be adjusted according to product weight, size, and transportation mode to reduce damage and spillage during transit.

Loading & export capability

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We have long-term experience serving overseas customers and are familiar with sea freight, air freight, and international logistics export processes. We can formulate container loading plans based on product size, weight, and container type, supporting: 20GP, 40GP, 40HQ full container export, as well as LCL consolidation. Before shipment, we can provide product photos, packaging photos, pallet photos, and container loading photos, and assist in preparing commercial invoices, packing lists, certificates of origin, and other export documents.

Projects & customer cases

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Products have been exported to markets in Asia, the Middle East, Africa, Europe, South America, and other regions, serving customers including: fastener importers, hardware wholesalers, building material distributors, engineering contractors, machinery manufacturing enterprises, and industrial equipment customers. We can provide standard fasteners, engineering fasteners, and non-standard customized product solutions according to different market requirements.

Products

Factory-direct supply with large stock on common sizes

Hebei Wangtu focuses on industrial fastener supply. We keep large stock, start standard orders from 1 kg, and run short lead times for custom parts. Send your size list or drawing for a fast RFQ.

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Bolts
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Custom special-shaped fasteners, non-standard bolts, nuts, and metal connectors
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custom-fasteners

Custom non-standard fasteners and special-shaped metal parts can be manufactured according to customer drawings, samples, and technical requirements. We offer customization of bolts, nuts, screws, pins, stampings, and special connectors. Various materials, strength grades, surface treatments, dimensions, and packaging requirements are supported, suitable for machinery, automotive, construction, energy, and industrial projects.

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Hex nuts of different strength grades and industrial nut product display
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Nuts

For importers, wholesalers and project buyers sourcing standard or drawing-based nuts and locking components. Browse hex, lock, flange, cap, coupling and other nut types. For a bulk RFQ, send the mating bolt or thread, standard or drawing, material or grade, finish, quantity, packing, destination and required inspection documents.

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News

Latest Updates

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Quick inquiry

Bulk RFQ / Send Drawing

Large stock on common sizes. MOQ from 1 kg. Short custom lead times. Include product/standard, size, material/grade, finish, quantity, packing and destination — or upload a drawing — and we will reply with quote and lead time.

Self-Drilling Screws