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Metal and Rubber Bonded Sealing Washer

Washer combining a metal support ring with a bonded rubber seal. Confirm dimensions, elastomer, compression and media compatibility for the assembly.

Five metal bonded sealing washers with black rubber sealing rings on a white background

A bonded sealing washer combines a metal bearing ring with an attached elastomeric sealing section. Under a bolt or screw head, the metal part limits compression while the rubber contacts the mating face. The generated main image shows the construction clearly; it is not evidence of stock, material or sealing performance.

Dimensions involve more than an ID and OD

State the metal outside diameter, bore, total thickness, rubber projection and mating fastener-head dimensions. The relationship between the hole, shank and sealing lip affects assembly. A standard flat washer dimension is not a substitute.

Match the sealing material to the environment

A black rubber appearance does not identify EPDM, NBR or another elastomer. Provide temperature, media, ultraviolet or outdoor exposure, contact-surface condition and expected service life so the project can confirm material and compression requirements.

RFQ and validation

Send the washer cross-section, ID and OD, metal and elastomer requirements, mating bolt or screw, contact face, installation method, quantity, packing and test requirements. For water or pressure sealing, validate the sample in the actual assembly before bulk use.

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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Bolts

For importers, wholesalers and project buyers sourcing standard or drawing-based bolts. Browse flange, socket, anchor, U-bolt and other bolt types. For a bulk RFQ, send the standard or drawing, size and thread, material or grade, finish, quantity, packing, destination and required inspection documents.

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Anchors Expansion Bolts Sleeve Anchors Wedge Anchors Chemical Anchors
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Anchors / Expansion Series

For importers, distributors and project buyers sourcing anchors for concrete, masonry and installation work. Browse sleeve, wedge, drop-in, heavy-duty and chemical-anchor components. For a bulk RFQ, provide the base material, application, anchor type and size, material or finish, quantity, packing, destination and any drawing or document requirement.

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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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2025-01-15-cost-trade

Challenges and Opportunities: Cost, Trade, and Transformation – How Fastener Manufacturers Can Tackle Rising Raw Material Prices, Trade Barriers, and the Urgent Need for Business Model Transformation

The global fastener industry is at a critical crossroads. Despite growing demand from sectors like new energy vehicles and aerospace, manufacturers face unprecedented headwinds. However, significant opportunities await those who can navigate these challenges.

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construction-fastener-demand-2026

Infrastructure Projects and Steel Structure Expansion Drive Global Bolt Demand

Global demand for construction fasteners continues to grow in 2026. Infrastructure expansion, steel structure projects, and industrial development are driving strong demand for high-strength bolts and fastening systems.

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Global Fastener Market Trends in Q3 2026: Steel Prices, Construction Demand, and Export Opportunities

Global Fastener Market Trends in Q3 2026: Steel Prices, Construction Demand, and Export Opportunities

In Q3 2026, the global fastener industry continues to grow steadily. Demand for high-strength bolts, structural fasteners, and galvanized construction bolts has increased in infrastructure, steel structures, and industrial projects.

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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.

Metal and Rubber Bonded Sealing Washer