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Home Product M10X20 Big Head Carriage Bolt - Large Round Head, Galvanized Steel, DIN 603, Heavy-Duty Fastener

M10X20 Big Head Carriage Bolt - Large Round Head, Galvanized Steel, DIN 603, Heavy-Duty Fastener

big head carriage bolt M10x20

heavy duty M10 carriage bolt

large head hex bolt M10x20

Big head carriage bolt M10*20

Big head carriage bolt M10x20, heavy-duty M10 carriage bolt with large head hex design, ensures secure fastening for robust applications. Durable construction ideal for heavy-duty industrial, automotive, or structural projects requiring M10x20 large head hex bolt strength and reliability.

Categories:Fasteners & Fixings

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Product Description

The Big Head Carriage Bolt M10x20 is a heavy-duty M10 carriage bolt designed for high-stress applications in construction, machinery, and industrial equipment. This large head hex bolt M10x20 features a domed, oversized hexagonal head measuring approximately 19mm across flats for superior grip and load distribution, paired with a 10mm diameter shank and 20mm threaded length. Crafted from grade 8.8 steel with hot-dip galvanized coating, it operates reliably in temperatures from -30°C to +120°C, offering corrosion resistance for outdoor or humid environments. The full-threaded design ensures maximum engagement strength for structural connections in steel framing, agricultural machinery, and transportation systems. Its wide bearing surface reduces surface damage during tightening while preventing pull-through in soft materials. Though optimized for permanent installations due to its non-recessed head design, this heavy-duty fastener requires compatible tools for installation and may not suit low-clearance applications. Key advantages include exceptional shear strength (up to 640 MPa) and vibration resistance, though its weight (approximately 35g) may limit use in weight-sensitive assemblies. Parameters like battery capacity and screen size are irrelevant to this mechanical component.

Parameter	Specification
Product Designation	Big Head Carriage Bolt M10x20
Thread Diameter	M10 (10mm)
Shank Length	20mm
Head Type	Oversized Domed Head
Head Style	Hexagonal with Square Neck
Material Grade	Carbon Steel Grade 8.8
Surface Treatment	Hot-dip Galvanized
Tensile Strength	800 MPa min
Proof Load	580 MPa
Thread Pitch	1.5mm (Standard Coarse Thread)
Drive Type	Hex Socket (Internal Drive)
Head Diameter	19.6mm ±0.5mm
Square Neck Dimensions	10.2mm x 10.2mm
Corrosion Resistance	ASTM B633 Class Fe/Zn 25
Application	Heavy-duty Structural Fastening

question:How do you handle shipping?
answer:We support DHL, Fedex, UPS, and other mainstream shipping methods to ensure fast and reliable delivery.
question:Can you provide photos of similar products and order details?
answer:Yes, please contact our sales team for product photos, order timelines, and production specifics tailored to your inquiry.
question:Why choose your company?
answer:As Asia's leading industrial automation trader with 20+ years of experience, 85% repeat clients trust our quality 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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