M12 Carriage Bolt with Square Neck
Galvanized steel carriage bolt (12 mm diameter) with square neck under rounded head, nuts, and flat washers for timber framing and machinery. HTS 7318.15.20.95 covers 'other' bolts ≥6 mm in mixed shipments. Prevents spinning during tightening.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If coach screws with lag threads
Coach screws have wood screw threads; carriage bolts have uniform machine threads.
If pre-embedded in wooden articles
Fasteners integral to builders' joinery classify with the wood product.
If rivet-style without full threading
Partial threading shifts to 'other threaded articles' like stud bolts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Galvanizing requires surface treatment declaration; clear coats may affect steel classification
• Measure square neck precisely—altered designs could reclassify as 'other screws'
• Use commercial invoices specifying 'entered/exported same shipment' for kits
Related Products under HTS 7318.15.20.95
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1/4-20 Grade 8 Hex Bolt Kit
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M20 Structural Hex Bolt Set
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