QISHENG Fastener FAQ
Answers to common questions about quoting, ordering, and technical specifications for industrial fasteners. Use the Quick Specs checklist to send complete requirements and get an accurate quotation.
- RFQ & ordering: what to send, MOQ, lead time, packaging, and delivery terms
- Technical specs: materials, grades, standards (DIN/ISO/ANSI), finishes, and tolerances
- For custom parts: drawings, samples, and inspection documents
SAMPLE INQUIRY √
Product: Hex Bolt M12×50
Material: Grade 8.8 Steel
Finish: Hot-Dip Galvanized
Standard: DIN 931
Quantity: 50,000 pcs
Lead Time: 18 days
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Quote Response
Frequently Asked Questions
Choose a topic below. If your question is not listed, send your specs and we will advise the best option.
Ordering & RFQ FAQs
What to send, how we quote, and how to place an order efficiently.
What information do you need for a quotation (RFQ)?
Please share fastener type, standard (if any), size (diameter/length/pitch), material/grade, surface finish, quantity, application environment, and any drawings or photos. More details help us quote accurately and avoid back-and-forth.
Can I send drawings for custom fasteners?
Yes. We accept PDF and CAD formats. If you have a sample, photos with key dimensions are also helpful. We will confirm the manufacturability and recommend tolerances when needed.
Do you have MOQ requirements?
MOQ depends on the product type, size, and whether it is standard or custom. Please send your target quantity and we will propose an economical option (stock, combined production, or custom run).
What is the typical lead time?
Lead time varies by material, finish, and production schedule. After we confirm specifications and quantity, we will provide an estimated production time and shipping option.
Can you provide samples before mass production?
For many items, samples can be provided for confirmation. For custom parts, we can support pre-production samples when required.
What packaging options do you offer?
Common options include bulk cartons, small boxes, bags, and pallet packaging. If you have labeling or barcode requirements, please specify in the RFQ.
What trade terms and payment methods do you accept?
Trade terms and payment options can be arranged based on order value and destination. Share your preferred terms and we will confirm availability.
How do I reduce quotation time?
Use the Quick Specs checklist below and send complete parameters with drawings/photos. Clear specs reduce clarification time and improve pricing accuracy.
Technical Specs FAQs
Materials, grades, standards, finishes, and inspection documents.
Which standards do you support (DIN/ISO/ANSI)?
We can supply fasteners referenced to common standards such as DIN, ISO, and ANSI. Please specify the exact standard number and revision if applicable.
How do I choose the right material?
Material selection depends on strength requirements, corrosion environment, and temperature. Share your application and we will recommend suitable options (e.g., carbon steel, stainless steel, alloy steel) and matching finishes.
What grades/classes are available?
Grades/classes depend on the fastener type and standard. Please indicate your required grade (or performance target) so we can match it correctly.
What surface finishes/coatings do you offer?
Finish options depend on material and corrosion needs. Provide your target corrosion performance and appearance requirements, and we will advise available finishes.
How do you control thread fit and tolerances?
Thread and dimensional checks follow the specified standard and customer requirements. For critical assemblies, we recommend confirming fit class and tolerance expectations during
Can you supply inspection documents?
Inspection documents depend on product and order requirements. If you need specific reports or certificates, list them in your RFQ.
Do you support non-standard sizes or special threads?
Yes, depending on feasibility. Please provide drawings and functional requirements. We will confirm tooling and production approach.
How do I avoid mismatched specs (wrong pitch/length/finish)?
Confirm size format, thread pitch, standard reference, finish name, and quantity in writing. Drawings or annotated photos greatly reduce risk.
Quick Specs Checklist
Copy and paste this list into your RFQ email to speed up quoting.
Fastener Type
Example: Hex bolt / Flange nut / Self-tapping screw
Standard
Example: DIN / ISO / ANSI (specify number if available)
Size
Example: M8 × 30, pitch 1.25 (or 5/16″-18 × 1″)
Material
Example: Carbon steel / Stainless steel / Alloy steel
Grade / Class
Example: Specify required grade/class or performance target
Finish / Coating
Example: Zinc plated / Black oxide / Other (specify)
Quantity
Example: 10,000 pcs
Packaging & Delivery
Example: Bulk carton / small box + labels / pallet; destination country
How to Order from QISHENG
Step 1 — Send RFQ
Share specs, drawings/photos, quantity, and destination.
Step 2 — Confirm Details
We confirm standard, grade, finish, tolerances, and packaging.
Step 3 — Quotation & Approval
You receive pricing and lead time for confirmation.
Step 4 — Production & Shipment
Production, inspection, packing, and delivery arrangement.
Request a Quote
Tell us what fasteners you need. For the fastest response, include drawings and the Quick Specs checklist.
- Attach drawings or photos if available
- Specify standard, grade/class, and finish
- Include quantity and destination country