Ningbo Jiulong Fasteners Manufacturing Co., Ltd.
Exports-oriented producer of precision metric and inch fasteners including socket head cap screws, grub screws, and fine-pitch bolts. Complies with ISO 898-1, ASME B18.3, and RoHS; maintains ISO/IEC 17025-accredited lab for mechanical property verification.
INDEPENDENT RESEARCH · NOT AFFILIATED, AUTHORIZED OR ENDORSED BY THIS COMPANYWhat this factory appears to do differently.
This brief is organized from Chinese public sources with domestic-model assistance. Every point remains tied to the source ledger and should be confirmed for the exact product and production site.
Exports-oriented producer of precision metric and inch fasteners including socket head cap screws, grub screws, and fine-pitch bolts. Complies with ISO 898-1, ASME B18.3, and RoHS; maintains ISO/IEC 17025-accredited lab for mechanical property verification.
Match the standard before the supplier.
Start with the drawing or standard, then confirm material, property class, finish, inspection and packing.
What overseas buyers can investigate.
Product families are taken from reviewed public material. Exact model, material, standard, tolerance, certification, MOQ and capacity must be confirmed directly with the manufacturer.
socket head cap screws
72% public-evidence confidenceCompare related manufacturers →grub screws
75% public-evidence confidenceCompare related manufacturers →fine-pitch bolts
78% public-evidence confidenceCompare related manufacturers →alloy steel screws
81% public-evidence confidenceCompare related manufacturers →RoHS-compliant fasteners
84% public-evidence confidenceCompare related manufacturers →RoHS screening
92% public-evidence confidenceCompare related manufacturers →calibration lab
92% public-evidence confidenceCompare related manufacturers →How to test the claimed manufacturing capability.
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Wire & material
Grade, heat number and incoming inspection
Forming
Cold/hot heading range and tooling ownership
Thread & secondary work
Rolling, machining and dimensional controls
Finish & release
Heat treatment, coating, testing and lot traceability
A useful lead,
not a finished decision.
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Structured capabilities
socket head cap screws · grub screws · fine-pitch bolts
Review capability map ↓Due-diligence gaps
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Products
Processes
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Evidence behind this profile
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宁波九龙紧固件制造有限公司 - 官网
This source was collected for research triage. The legal entity, website ownership, manufacturing role and product claims have not yet passed human review.
Open public source ↗What still needs verification
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