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Home Product Model M6*80 Big Head Carriage Bolt, Coach Bolt, Heavy Duty Round Head Bolt, Galvanized Steel Fastener for Woodworking & Construction
Big head carriage bolt M6*80

Model M6*80 Big Head Carriage Bolt, Coach Bolt, Heavy Duty Round Head Bolt, Galvanized Steel Fastener for Woodworking & Construction

M6x80 carriage bolt
Large head carriage bolt
Heavy-duty coach bolt
Big head carriage bolt M6*80
M6x80 carriage bolt with large head design for heavy-duty use. This robust coach bolt offers secure fastening in construction, machinery, and woodworking applications, featuring a wide load-bearing surface to prevent material damage during installation and use.
Categories:Fasteners & Fixings
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Product Description

The M6x80 carriage bolt features a large head design for enhanced load distribution and a heavy-duty coach bolt construction, ideal for high-stress applications in construction, machinery, and structural frameworks. With a 6mm diameter and 80mm length, it provides robust fastening for industrial equipment, bridges, and automotive assemblies. This bolt operates in a temperature range of -40°C to +120°C, compatible with standard M6 nut fittings, and requires no electrical inputs/outputs or communication interfaces. Its domed large head carriage bolt design prevents pull-through in soft materials, while the square neck resists rotation during installation. Limitations include manual torque adjustment and incompatibility with thin-walled materials. The zinc-plated finish ensures corrosion resistance in outdoor environments.
Parameter Specification
Product Type Large head carriage bolt
Thread Size M6 coarse thread (6mm diameter)
Shank Length 80mm ±1mm
Head Height 8.5mm minimum
Head Diameter 16.5mm ±0.3mm
Square Neck Dimensions 10.5mm × 10.5mm ±0.2mm
Material Grade Carbon steel Grade 8.8 (ISO 898-1)
Surface Treatment Zinc-plated (5-8μm coating thickness)
Tensile Strength ≥800 MPa
Proof Load 22.5 kN minimum
Drive Type Square drive under-head
Standards Compliance DIN 603 / ISO 10509-1992
Applications Structural wood connections, heavy-duty coach bolt applications
question:Why choose your company for purchase?
answer:As Asia's leading industrial automation trader with 20 years' experience, we ensure reliable quality and strong reputation, with 85% clients being repeat buyers.
question:Can you share shipment photos/purchase dates of similar products?
answer:Specific shipment documentation can be provided after confirming your purchase order to ensure transaction confidentiality.
question:What shipping methods do you offer?
answer:We arrange shipments via DHL, FedEx, UPS, etc., with prompt delivery after order confirmation.
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 purchase?
answer:As Asia's leading industrial automation trader with 20 years' experience, we ensure reliable quality and strong reputation, with 85% clients being repeat buyers.
question:Can you share shipment photos/purchase dates of similar products?
answer:Specific shipment documentation can be provided after confirming your purchase order to ensure transaction confidentiality.
question:What shipping methods do you offer?
answer:We arrange shipments via DHL, FedEx, UPS, etc., with prompt delivery after order confirmation.
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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