Bolt m/c m30 x 150mm long countersunk is a heavy-duty fastening solution designed for structural assemblies, machinery installations, and engineering projects that require high tensile strength with a flush surface finish. These M30 countersunk bolts combine a large diameter with a flat head design to ensure secure and precise fastening in demanding industrial environments.
๐ฉ What is an M30 x 150mm Countersunk Bolt?
The m30 x 150mm flat head bolt features:
- Thread Size: M30 metric thread (30mm diameter)
- Length: 150mm overall length
- Head Type: Flat countersunk head for flush surface mounting
- Drive Type: Allen hex socket or custom drive types
- Material Options: Alloy steel (Grade 10.9, 12.9), carbon steel, stainless steel (304, 316)
- Standards: DIN 7991 / ISO 10642 / custom specifications
- Surface Finish: Plain, zinc plated, black oxide, hot-dip galvanized
This bolt is widely used for steel structure connections, heavy machinery mounting, bridge construction, and equipment assembly where a flush finish and maximum tensile capacity are critical.
โ Key Specifications
- Diameter: M30 (30mm)
- Length: 150mm
- Material Options:
- Alloy Steel Grade 10.9 / 12.9 โ high tensile structural fastening
- Carbon Steel โ cost-effective for general structural use
- Stainless Steel 304 / 316 โ corrosion resistance in marine and outdoor applications
- Thread Type: Metric coarse thread (standard), metric fine upon request
- Surface Treatments: Plain, zinc plated, black oxide, hot-dip galvanized, custom coatings
โ๏ธ Applications of M30 Countersunk Bolts
โ Heavy steel structure assembly โ bridges, towers, and industrial plants
โ Machinery and equipment installation โ flush surface prevents obstruction
โ Construction and civil engineering โ high load-bearing connections
โ Shipbuilding and offshore structures โ stainless steel M30 bolts for corrosion resistance
โ Mining and heavy equipment maintenance โ robust fastening for large machinery
๐ง Advantages of Choosing Our M30 x 150mm Flat Head Bolts
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Large diameter and length provide maximum tensile strength for structural integrity
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Flush countersunk head ensures snag-free and aesthetic finish
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High tensile alloy steel options for demanding industrial use
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Multiple surface treatments for corrosion protection
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OEM & ODM customization for drive type, dimensions, packaging, and branding
๐ฆ Packaging & Supply Details
- MOQ: 100 pcs per size
- Packaging: Bulk cartons with pallets / wooden boxes / OEM labeled packaging
- Lead Time: 10โ20 working days depending on material and surface finish
- Customization: Lengths, thread types, head styles, surface treatments, logo engraving
๐ก Why Choose Our Bolt M/C M30 x 150mm Long Countersunk?
As a professional heavy-duty countersunk bolt manufacturer and supplier, we provide:
โ Strict quality control from raw material forging to precision machining
โ Competitive factory pricing with stable supply for long-term projects
โ OEM & ODM services for structural contractors, machinery manufacturers, bridge and offshore builders
โ Export experience to Europe, North America, Southeast Asia, and the Middle East
๐ Learn More
Looking for durable m30 countersunk bolts to ensure reliable fastening in your heavy structural assemblies and industrial projects?
๐ Visit our product page here to view detailed specifications and place your order directly with the factory.
๐ฉ Contact Us Today
Get in touch for technical drawings, CAD support, free consultation, and factory-direct quotations to support your structural engineering, heavy machinery, and construction needs.