DIN6914 Heavy Hex Structural Bolt
Sourcing DIN6914 Heavy Hex Structural Bolt from Handan Daoning Fasteners Co., Ltd. - China Import Guide
Before ordering, confirm the material certificate matches DIN 6914 or ASME B18.2.1 and includes the heat number and mechanical test results. Request a copy of the salt spray test report for coated bolts and verify the coating thickness with a magnetic gauge. Avoid accepting bolts without a tensile test report, as unverified strength can compromise structural safety.
Confirm Incoterms with the supplier - FOB Qingdao or Shanghai is common. Lead time is typically 30 to 45 days, depending on finish and order size. Minimum order is 500kg per size. Packaging is bulk cartons on pallets, with labeling per customer request. Payment terms are usually 30% advance, 70% against shipping documents. Always specify size, quantity, finish, and standard in writing.
Upon delivery, inspect for thread damage, coating uniformity, and head dimensions using calipers and gauges. Perform a random hardness test on 5% of the batch. If corrosion resistance is critical, conduct a 24-hour salt spray test on a sample. Retain a sample from each shipment for 12 months to support any field failure claims. Request traceability by heat lot for all shipments.
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