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Industrial Fastener Manufacturer for Construction and Engineering

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Find the Right Fastener for Your Application

Explore Wotu’s range of self-drilling screws, self-tapping screws, bolts, nuts, U-bolts, anchor bolts and washers for construction, steel structure, roofing and industrial fastening applications.


Our products are available in multiple sizes, standards, head types and surface finishes. We also support bulk orders, customized non-standard fasteners, neutral export packaging and private-label requirements.

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7-letter, 9-letter L-shaped anchor bolt (Chinese national standard GB/T799-1988 embedded anchor screw)

Brand: Wotu Surface: Natural black oxide treatment, customized hot-dip galvanized, zinc plated as required Specifications: Follow Chinese national standard GB/T799-1988, in stock M12-M48, total length 120mm~1500mm, nonstandard customized diameter, bending length, total screw length available Matching: Nuts, flat washers and spring washers of the same specification can be supplied in complete sets. Packaging: Bundling and packaging, using wooden pallets and film-wrapped export packaging in large quantities

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Fastener Solutions for Your Project

Tell us the fastener type, standard, size, material, surface treatment, quantity and application requirements.

Our team will help you select the right fastener, confirm customization options and prepare a quotation for your project or bulk purchase.

Information Required for a Fastener Quote

  • • Required product type: self-drilling screw, self-tapping screw, bolt, nut, U-bolt, anchor bolt or washer
  • • Standard, diameter, length, thread and other specification requirements
  • • Material and required surface treatment
  • • Application, working environment and performance requirements
  • • Estimated order quantity and packaging requirements
  • • Drawing, sample photo or existing product specification, if available
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