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Home Product Big Head Carriage Bolt M8*100 - Heavy Duty Galvanized Steel Bolt for Construction, Automotive
Big head carriage bolt M8*100

Big Head Carriage Bolt M8*100 - Heavy Duty Galvanized Steel Bolt for Construction, Automotive

Big head carriage bolt M8x100
M8x100 large head bolt
Carriage bolt with big head M8
Big head carriage bolt M8*100
Big head carriage bolt M8x100 features a large, smooth domed head and square neck for secure, vibration-resistant fastening. This M8x100 large head bolt is designed for wood-to-metal applications, offering easy installation with wrench-gripped hexagonal base. Durable carriage bolt with big head M8 ensures low-profile performance in construction and DIY projects.
Categories:Fasteners & Fixings
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Product Description

The Big head carriage bolt M8x100 features a large, domed head with a square neck designed to prevent rotation during installation, suitable for wood-to-metal fastening. With a diameter of 8 mm and length of 100 mm, this M8x100 large head bolt is crafted from high-grade carbon steel (Grade 4.8 or higher) and offers a tensile strength up to 420 MPa. It operates reliably in temperatures ranging from -20°C to 120°C, making it ideal for construction, agricultural machinery, and furniture assembly. The Carriage bolt with big head M8 includes a zinc-plated finish for corrosion resistance. Key advantages include vibration resistance and ease of alignment, though pre-drilled holes are required for installation. Typical load capacity reaches 6.8 kN under static conditions.
Parameter Specification
Product Model Big head carriage bolt M8x100
Alternative Name M8x100 large head bolt / Carriage bolt with big head M8
Thread Size M8 (8mm nominal diameter)
Length 100mm (under head)
Head Diameter 21mm (oversized square head)
Head Height 5.5mm
Material Carbon steel grade 4.8 / Stainless steel A2-70 optional
Surface Finish Zinc plated (5-8μm) or hot-dip galvanized
Thread Pitch 1.25mm (standard coarse thread)
Shank Type Partially threaded (30mm thread length)
Standards DIN 603 / ISO 1207 compliant
question:Can I schedule an official courier pickup myself?
answer:Yes, you can arrange self-pickup via our portal with valid order verification.
question:Does your company provide technical selection services?
answer:Yes, we offer technical consultation for product compatibility and specifications.
question:What is the warranty coverage?
answer:Warranty includes defects repair or replacement within 12 months from delivery.
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 an official courier pickup myself?
answer:Yes, you can arrange self-pickup via our portal with valid order verification.
question:Does your company provide technical selection services?
answer:Yes, we offer technical consultation for product compatibility and specifications.
question:What is the warranty coverage?
answer:Warranty includes defects repair or replacement within 12 months from delivery.
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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