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Home Product Big Head Carriage Bolt M6*90, Round Head Coach Bolt, Stainless Steel Fastener, Heavy Duty Construction Hardware Fixings
Big head carriage bolt M6*90

Big Head Carriage Bolt M6*90, Round Head Coach Bolt, Stainless Steel Fastener, Heavy Duty Construction Hardware Fixings

Big head M6x90 carriage bolt
Large head carriage bolt M6x90
Heavy duty M6x90 carriage bolt
Big head carriage bolt M6*90
Big head M6x90 carriage bolt, also referred to as Large head carriage bolt M6x90 or Heavy duty M6x90 carriage bolt, offers durable construction with a wide flat head and square neck for secure fastening in machinery, construction, and industrial applications. Engineered for high-strength performance and stability.
Categories:Fasteners & Fixings
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Product Description

The Big head M6x90 carriage bolt, also known as Large head carriage bolt M6x90 or Heavy duty M6x90 carriage bolt, is a robust fastening solution crafted from grade 5 carbon steel or stainless steel (A2/A4 options). It features a prominent 19mm diameter domed head with a square neck designed to prevent rotation during installation, ideal for high-stress applications. With a total length of 90mm and M6 threading (6mm diameter, 1.0mm pitch), this bolt operates effectively in temperatures ranging from -30°C to 120°C, supporting both static and dynamic loads up to 8.8kN tensile strength. Zinc-plated for corrosion resistance, it complies with DIN 603 standards. Commonly used in construction, machinery assembly, and automotive industries, its key advantages include anti-theft design, tool-free installation compatibility, and vibration resistance. Limitations include non-adjustable head orientation and incompatibility with countersunk surfaces. The square neck requires 4mm wrench clearance for secure mounting.
Parameter Specification
Product Model Big head M6x90 carriage bolt, Large head carriage bolt M6x90, Heavy duty M6x90 carriage bolt
Thread Size M6 (6mm diameter)
Length 90mm (shank length under head)
Head Diameter 19mm (enlarged domed head)
Head Height 8mm
Square Neck Width 10mm
Square Neck Height 2.5mm
Material Carbon steel (Grade 8.8)
Surface Finish Zinc-plated (5-8μm thickness)
Tensile Strength 800 MPa minimum
Standards ISO 7413, DIN 603
Installation Requires square hole or compatible nut
question:Can we apply for low-value declaration for shipments?
answer:Yes, eligible orders can apply for low-value declaration to reduce import duties.
question:Why choose your company for industrial automation products?
answer:As Asia's leading supplier with 20+ years' experience, we guarantee reliable quality and uphold strong reputation, with 85% repeat clients.
question:What payment methods do you accept?
answer:We accept T/T, PayPal, and other mainstream payment options for secure transactions.
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 we apply for low-value declaration for shipments?
answer:Yes, eligible orders can apply for low-value declaration to reduce import duties.
question:Why choose your company for industrial automation products?
answer:As Asia's leading supplier with 20+ years' experience, we guarantee reliable quality and uphold strong reputation, with 85% repeat clients.
question:What payment methods do you accept?
answer:We accept T/T, PayPal, and other mainstream payment options for secure transactions.
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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