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Home Product M20*140 Half Thread External Hex Bolt | Partial Thread Galvanized Grade 8.8 | Heavy Duty Construction Fastener
Half thread external hexagonal bolt M20*140

M20*140 Half Thread External Hex Bolt | Partial Thread Galvanized Grade 8.8 | Heavy Duty Construction Fastener

M20x140 half thread bolt
Hex head bolt M20x140
External hex bolt M20x140 half thread
Half thread external hexagonal bolt M20*140
M20x140 half thread bolt with external hex head design, suitable for structural and mechanical applications requiring partial threading. Hex head bolt M20x140 provides secure fastening using standard wrench tools. External hex bolt M20x140 half thread ideal for industrial and construction use.
Categories:Fasteners & Fixings
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Product Description

The M20x140 half thread bolt is a hex head fastener designed for heavy-duty applications requiring partial threading for secure adjustment and clamping. Featuring an external hexagonal drive (ISO 4014/DIN 931 standard), this bolt has a total length of 140mm with a threaded section spanning 70mm and a smooth shank of 70mm. The Hex head bolt M20x140 typically uses a 30mm wrench size for installation, manufactured in Grade 8.8 steel or A4 stainless steel for corrosion resistance. It operates effectively in environments ranging from -50°C to +300°C, making it suitable for construction, machinery assembly, and industrial equipment. The External hex bolt M20x140 half thread offers high tensile strength (800 MPa) and vibration resistance but requires adequate lateral clearance for tool access. Surface treatments include hot-dip galvanizing or zinc plating for enhanced durability. The non-threaded portion ensures precise alignment in structural joints while the threaded segment enables controlled tensioning. Common applications include flange connections, structural steel frameworks, and load-bearing assemblies where combined shear and tensile strength are critical.
Parameter Specification
Bolt Type M20x140 half thread bolt
Diameter (D) 20 mm
Total Length (L) 140 mm
Thread Length (T) 65 mm
Head Style Hex head bolt M20x140
Head Height (H) 12.9 mm
Across Flats (S) 30 mm
Material Stainless Steel A2/Carbon Steel
Surface Treatment Hot-dip Galvanized/Plain
Strength Grade 8.8/10.9
Standard DIN 933/ISO 4017
External Hex Bolt Type External hex bolt M20x140 half thread
Torque Value 400-450 Nm
Weight ≈325 g
question:Why choose your company for purchases?
answer:As Asia's leading industrial automation trade company with 20+ years of trusted reliability, 85% of our business comes from loyal clients.
question:Do you have a professional product selection team?
answer:Yes, our expert engineers rigorously evaluate products to ensure optimal quality and compliance with industry standards.
question:How do you ensure product quality and credibility?
answer:With decades of experience and a strict supplier vetting process, we prioritize long-term client trust and reliability.
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:Why choose your company for purchases?
answer:As Asia's leading industrial automation trade company with 20+ years of trusted reliability, 85% of our business comes from loyal clients.
question:Do you have a professional product selection team?
answer:Yes, our expert engineers rigorously evaluate products to ensure optimal quality and compliance with industry standards.
question:How do you ensure product quality and credibility?
answer:With decades of experience and a strict supplier vetting process, we prioritize long-term client trust and reliability.
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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