M8x16 Big Head Carriage Bolt Coach Bolt Heavy Duty Zinc Plated DIN 603

Big head carriage bolt

M8x16 carriage bolt

M8-16 large head bolt

Big head carriage bolt M8*16

Big head carriage bolt, M8x16 carriage bolt with large head design. Also referred as M8-16 large head bolt, engineered for secure fastening in construction and machinery. Features durable steel material, corrosion resistance, and smooth installation. Ideal for heavy-duty applications requiring enhanced load distribution.

Specification

SEODescription

The Big head carriage bolt, specifically the M8x16 carriage bolt, is a heavy-duty fastening component designed for robust industrial applications. This M8-16 large head bolt features an 8 mm diameter and 16 mm length with a prominent, rounded head that ensures secure clamping force distribution. Constructed from high-grade carbon steel or stainless steel (AISI 304/316 options available), it offers tensile strengths up to 800 MPa. The integrated square neck beneath the head prevents rotation during installation, compatible with standard M8 nuts and 13 mm wrench sizes. Typical applications include structural assemblies in construction, agricultural machinery, and railway components where vibration resistance is critical. Operational temperature ranges from -20°C to 120°C. Advantages include superior shear resistance and simplified alignment, though the large head profile may require pre-drilled countersinks in certain configurations. Surface treatments vary from zinc plating to hot-dip galvanization (5-15 μm coating thickness) for corrosion protection.

SEOSpecification

Parameter	Specification
Product Name	Big head carriage bolt
Model Number	M8x16
Thread Diameter	M8 (8mm)
Shank Length	16mm
Head Type	Large domed carriage head
Head Diameter	16mm
Drive Type	Square neck under head
Material	Carbon steel
Surface Finish	Zinc-plated
Strength Grade	Class 8.8
Alternative Designation	M8-16 large head bolt

SEOQandA

question:Why is the shipping cost high? Are there more economical delivery options?
answer:Shipping rates fluctuate with market conditions. We offer alternative carriers and bulk discounts upon request.
question:Can you provide shipment photos and purchase dates for similar products?
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question:Do you accept payment after delivery?
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SEOQandA_Product

question:Difficulty installing due to head slipping during tightening.
answer:Use a correctly sized socket wrench for secure grip and even torque application.
question:Bolt loosening under vibration or dynamic loads.
answer:Apply thread-locking adhesive or use a lock washer to maintain tension.
question:Corrosion in harsh environments affecting bolt integrity.
answer:Opt for stainless steel (e.g., 316 grade) or galvanized coatings for corrosion resistance.
question:Insufficient thread engagement leading to weak joints.
answer:Ensure minimum thread engagement of 1x diameter (8mm) for M8 bolts per standards.
question:Cross-threading during installation damaging threads.
answer:Align bolt axis perpendicular to the hole; start threading by hand before tightening.