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Home Product M6*16 Big Head Carriage Bolt | Heavy Duty Large Head Bolt, Zinc-Plated Steel, Furniture Assembly Structural Fastener
Big head carriage bolt M6*16

M6*16 Big Head Carriage Bolt | Heavy Duty Large Head Bolt, Zinc-Plated Steel, Furniture Assembly Structural Fastener

M6x16 carriage bolt
Big head coach bolt
Large head carriage bolt
Big head carriage bolt M6*16
M6x16 carriage bolt with large round head, also known as big head coach bolt or large head carriage bolt. Designed for wood-to-metal fastening applications, featuring a domed top and square neck for anti-rotation grip. Zinc-plated steel construction.
Categories:Fasteners & Fixings
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Product Description

The M6x16 carriage bolt (Big head coach bolt/Large head carriage bolt) is a heavy-duty fastening component featuring a smooth domed head with a square neck for rotation resistance. Constructed from grade 8.8 steel with zinc plating, this bolt measures 6mm diameter x 16mm length (threaded portion at 12mm) and carries a tensile strength of 800 MPa. Designed for permanent installations in construction, automotive assembly, and machinery, its oversized head provides 19mm diameter load distribution. The square neck prevents spinning during nut tightening, suitable for wood-to-metal or composite material joints. Operating temperature ranges from -20°C to 120°C with corrosion-resistant coating. Advantages include vibration resistance and flush surface finish, though installation requires pre-matched square-holed surfaces. Typical applications include structural frameworks, agricultural equipment, and industrial racking systems requiring shear force resistance.
Parameter Specification
Product Type Carriage Bolt / Coach Bolt
Thread Size M6 (Metric 6mm)
Thread Pitch 1.0mm
Shank Length 16mm
Head Type Large Domed Head
Head Diameter 11.5mm
Head Height 4mm
Square Neck Width 7mm
Material Grade Carbon Steel Class 4.8
Surface Finish Zinc Plated
Tensile Strength 420 MPa
Drive Type Hex Drive (13mm)
Weight 0.008 kg/unit
Alternative Names Big Head Coach Bolt, Large Head Carriage Bolt
Standards ISO 898-1, ASTM A307
Surface Hardness HV 130-280
question:Can I apply for low-value declaration for shipments?
answer:Yes, low-value declaration is available for eligible shipments under applicable regulations.
question:Why are product labels removed upon delivery?
answer:Labels may be removed to comply with destination country customs or distributor requirements.
question:Do you accept payment after delivery?
answer:No, payment must be settled in advance or via confirmed LC before shipment.
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:Can I apply for low-value declaration for shipments?
answer:Yes, low-value declaration is available for eligible shipments under applicable regulations.
question:Why are product labels removed upon delivery?
answer:Labels may be removed to comply with destination country customs or distributor requirements.
question:Do you accept payment after delivery?
answer:No, payment must be settled in advance or via confirmed LC before shipment.
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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