Custom Fasteners
For Industrial
Projects
OEM Manufacturing • Precision Production • Global Export
- 27+
- Years of manufacturing
- M3–M100
- Standard fastener range
- ISO 9001
- Certified quality system
An OEM CNC machining manufacturer, since 2009.
Two facilities in Qingdao totalling 5,000 m², 75+ manufacturing and QC machines, and a design team with 15+ years of experience — delivering CNC machining, milling, turning, die casting and sheet metal parts to customers in 50+ countries.
5,000 m² plants
Two facilities in Qingdao with room for CNC, QC and finishing under one roof.
75+ machines
Mazak 5-axis, CNC turning and milling, plus dedicated QC equipment on the floor.
300+ customers
Trusted by industrial buyers for repeat OEM runs and custom fastener programs.
50+ countries
Export-ready packaging, docs and logistics for global project delivery.
Full process cover
CNC, die casting, sheet metal, EDM and surface finishing from one supplier.
15+ years design
In-house engineering with DFM feedback and typical 24-hour quote response.
Popular Products
Browse our main fastener families — manufactured to international standards and available in custom specifications.
Bolt
Hex, flange and specialty bolts engineered for industrial assemblies.
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Nut
Hex, lock and flange nuts matched to your bolt grades and finishes.
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Screw
Machine and self-tapping screws for precision fastening applications.
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Washer
Flat, spring and lock washers for load distribution and vibration control.
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Stud & Threaded Rod
Stud bolts and threaded rods for high-pressure and structural joints.
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Special Material Fastener
Exotic alloys and coated fasteners built for harsh environments.
View DetailsIndustries We Serve
About Us
Mertra is a Qingdao-based OEM fastener manufacturer with two plants, 75+ machines, and engineering support for industrial buyers worldwide. We combine drawing-to-part manufacturing, multi-stage QC, and export-ready logistics so every shipment installs with confidence.
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next project?
Send us your drawing or part list and we’ll get back to you within one business day with a quote and lead-time estimate.