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Home Product M20*160 Half Thread Hex Bolt, High Strength Hot-Dipped Galvanized Steel External Hexagonal Head Bolt for Construction Machinery
Half thread external hexagonal bolt M20*160

M20*160 Half Thread Hex Bolt, High Strength Hot-Dipped Galvanized Steel External Hexagonal Head Bolt for Construction Machinery

M20x160 hex bolt half thread
half thread external hex bolt
M20-160 external hex bolt
Half thread external hexagonal bolt M20*160
M20x160 hex bolt half thread, half thread external hex bolt, M20-160 external hex bolt for high-strength fastening applications. Zinc-plated surface with anti-corrosion treatment, partial thread design optimizes grip strength. DIN/ISO standard compliant, suitable for construction, machinery, automotive assemblies. Reduced shank section minimizes material usage while maintaining load capacity.
Categories:Fasteners & Fixings
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Product Description

The M20x160 hex bolt half thread is a heavy-duty fastener designed for applications requiring secure clamping with partial threading. This half thread external hex bolt features a nominal diameter of 20 mm, overall length of 160 mm, and a partially threaded shank (typically 80-100 mm threaded section) to optimize load distribution. Constructed from grade 8.8 steel with hot-dip galvanized coating, it offers tensile strength up to 800 MPa and corrosion resistance for industrial environments (-30°C to +150°C operational range). The M20-160 external hex bolt is commonly used in structural engineering, machinery assembly, and renewable energy installations. Advantages include vibration resistance through the unthreaded shoulder and simplified alignment during installation, though the half-thread design limits adjustability compared to fully threaded variants. The 27 mm hex head accommodates standard wrench sizes for torque values up to 630 Nm, making it suitable for high-stress connections in civil construction and heavy equipment sectors.
Parameter Specification
Product Model M20x160-Hex-HalfThread
Thread Specification ISO 898-1 Metric Coarse Thread
Major Diameter 20 mm
Total Length 160 mm
Thread Length 80 mm (50% of total length)
Hex Head Size 30 mm (AF)
Material Grade Class 8.8 Carbon Steel
Surface Treatment Zinc Plated (5-8 µm)
Tensile Strength 800 MPa min
Proof Load 580 MPa
Thread Pitch 2.5 mm
Standards Compliance DIN 933 / ISO 4017
Head Height 12.5 mm
Drive Type External Hexagon
Thread Engagement Partial Thread (Half-length)
Torque Value 415 Nm (Lubricated)
Application Scope Heavy-duty machinery, structural connections
question:How do you handle shipping?
answer:We support DHL, FedEx, UPS, and other major carriers for global shipping.
question:What is the warranty policy?
answer:We offer 1-3 years warranty based on product category.
question:Why can't you supply discontinued models others claim to have?
answer:We focus on current models to ensure quality and reliable stock; discontinued items may lack authenticity.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:How do you handle shipping?
answer:We support DHL, FedEx, UPS, and other major carriers for global shipping.
question:What is the warranty policy?
answer:We offer 1-3 years warranty based on product category.
question:Why can't you supply discontinued models others claim to have?
answer:We focus on current models to ensure quality and reliable stock; discontinued items may lack authenticity.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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