FAQ
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Which International Standards Do Your Fasteners Comply With?
Our bolts, nuts, and other fasteners strictly adhere to mainstream international standards, including but not limited to:
DIN 912 (Hex Socket Head Cap Screws)
GB 5783 (Hex Head Bolts)
DIN 934 (Hex Nuts)
DIN 931 (Hex Head Bolts with Partial Thread)
GB 52 (Hex Nuts)
DIN 6921 (Hex Flange Bolts)
ASTM A325 (Structural Bolts)
JIS B 1180 (Japanese Standard Flange Nuts)
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Can You Customize Non-standard Sizes Or Special Coatings?
Standard parts: Support light customization (e.g., surface coatings, packaging). Minimum Order Quantity (MOQ): 5,000 pcs, lead time: 7-10 days.
Non-standard parts: Provide drawings or samples. MOQ and lead time depend on complexity.
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How To Choose The Right Material For Fasteners?
Carbon Steel: Cost-effective for dry environments (e.g., indoor machinery).
Stainless Steel (A2/A4): Corrosion-resistant, ideal for coastal or chemical environments.
Alloy Steel (Grade 8.8/10.9): High strength for heavy-duty equipment.
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What Is The Minimum Order Quantity (moq)?
Standard in-stock parts: No MOQ (1 piece accepted).
Custom parts: MOQ varies by specifications, typically 5,000 pcs/batch.
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What Payment Methods Do You Accept?
T/T (Telegraphic Transfer): 50% deposit, 50% before shipment.
PayPal: Only for sample orders (≤ $500).
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Are Taxes And Shipping Included In The Price?
Quotes are EXW (Ex-Works) by default, excluding taxes and freight. For DDP/DAP terms, provide destination ZIP code for door-to-door cost calculation.
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What Is The Lead Time?
Standard parts: 72-hour shipping for in-stock items; sea/air transit time varies by destination.
Custom parts: Production + logistics, typically 15-25 days.
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Can You Expedite Urgent Orders?
Yes! Air freight expedited service is available with a 30% expedited fee. Fastest delivery to major EU/US ports: 5 days.
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What If Goods Are Damaged Or Lost?
Inspect and photograph goods upon delivery.
Report damage/shortage within 48 hours with evidence for free replacements or compensation.
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How Do You Ensure Product Quality?
Three-Stage Inspection: Raw material inspection → In-process sampling → 100% final inspection.
Warranty: Unconditional replacement or refund for non-human damage within 12 months.
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What Technical Support Do You Offer?
Free consultation: Send application photos via email/WhatsApp for product recommendations.
Documentation: Download 3D CAD files, torque tables, and more from our website.
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Do You Provide Free Samples?
Standard parts: Free samples (3 models, 5 pieces each) for orders over $1,000.
Custom parts: Sample fee required (deductible from future orders).
