E-mail:nomi@kernal-service.com Address:Hong Kong, China

QUICK QUOTE

Open Nav

Products

Products
Home Product Big Head Carriage Bolt M12*120 - Oval Neck, High-Strength Galvanized Steel Construction Fastener Hardware
Big head carriage bolt M12*120

Big Head Carriage Bolt M12*120 - Oval Neck, High-Strength Galvanized Steel Construction Fastener Hardware

Big head M12x120 carriage bolt
Large head coach bolt M12x120
Heavy-duty round head bolt M12x120
Big head carriage bolt M12*120
Big head M12x120 carriage bolt, Large head coach bolt M12x120, Heavy-duty round head bolt M12x120. High-strength zinc-plated fastener with domed head design for structural assemblies, machinery, and industrial equipment. Provides enhanced load distribution and rust-resistant durability. ISO-standard thread pitch, forged steel construction.
Categories:Fasteners & Fixings
END INQUIRY

Product Description

The Big head M12x120 carriage bolt, also known as a Large head coach bolt M12x120 or Heavy-duty round head bolt M12x120, is a robust fastening component designed for structural applications in construction, automotive, and heavy machinery industries. Featuring a 12mm diameter and 120mm length, this bolt incorporates a wide, domed head for enhanced load distribution and a square neck to prevent rotation during installation. Constructed from high-strength carbon steel (Grade 8.8) with optional zinc-plated or hot-dip galvanized finishes, it operates reliably in temperatures ranging from -30°C to +150°C. Ideal for securing heavy components, its advantages include extreme tensile strength (up to 800 MPa), corrosion resistance, and vibration-resistant design, though installation requires precise alignment due to the square neck. Typical applications include bridge assemblies, industrial equipment frames, and agricultural machinery.
Parameter Specification
Designation Big head carriage bolt M12x120
Large head coach bolt M12x120
Heavy-duty round head bolt M12x120
Material Carbon steel (Grade 4.8/8.8)
Coating Zinc-plated (5-8μm)
Thread Type Partial thread, ISO 888 Class 6g
Head Shape Dome head with square neck
Head Diameter 24 mm
Head Height 8 mm
Shank Diameter 12 mm
Shank Length 120 mm (non-threaded portion: 40 mm)
Neck Dimension Square 8x8 mm
Standard Compliance DIN 603, ISO 10510
question:Can I schedule official courier pickup myself?
answer:Yes, you can arrange self-pickup via our platform once the order is confirmed.
question:How is a refurbished product handled if it malfunctions?
answer:We offer repair, replacement, or refund per our warranty terms for verified refurbished defects.
question:Is low-value declaration available for shipments?
answer:Low-value declaration is possible if compliant with the destination country's import regulations.
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 schedule official courier pickup myself?
answer:Yes, you can arrange self-pickup via our platform once the order is confirmed.
question:How is a refurbished product handled if it malfunctions?
answer:We offer repair, replacement, or refund per our warranty terms for verified refurbished defects.
question:Is low-value declaration available for shipments?
answer:Low-value declaration is possible if compliant with the destination country's import regulations.
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.
Home About Products News Contact Us
Quick quote
Even if not present on our website, we probably have the spare parts you are looking for. Specify the quantities and we will send you our quote!
Product detail
    • + Add another part number