The fastest way to get an accurate fastener quote is to send a complete RFQ. The slowest way is to write "send price for bolts" and wait for ten suppliers to ask the same follow-up questions.

Quick checklist

A good fastener RFQ should include the standard, product name, size, grade, material, finish, quantity, packaging, documents, inspection requirements, destination port, and target delivery schedule.

  • Standard: DIN, ISO, ASTM, ASME, JIS, or a drawing
  • Product: hex bolt, heavy hex nut, wedge anchor, threaded rod, washer, screw, or custom part
  • Size: diameter, length, thread pitch, and any special geometry
  • Grade: 4.8, 8.8, 10.9, ASTM A193 B7, F1554, A325, A490, stainless A2-70, etc.
  • Finish: plain, zinc plated, HDG, black oxide, Dacromet, Geomet, or stainless
  • Quantity: pieces, kilograms, cartons, pallets, or container quantity
  • Packaging: bulk carton, small box, pallet, private label, barcode, or neutral packing
  • Documents: MTC, inspection report, certificate of origin, packing list, invoice
  • Shipping: FOB Tianjin, CIF destination, LCL, FCL, courier sample, or air freight

1. Name the standard first

Fasteners are standard-driven products. A "hex bolt M10 x 40" is not enough. DIN 933, ISO 4017, ASME B18.2.1, and other standards can describe different dimensions or market expectations. If you are replacing an existing part, photos and measurements help, but the standard is still the safest reference.

If you do not know the exact standard, send a drawing or sample photo with key dimensions. HDBolt can usually identify whether the part is closer to a DIN, ISO, ASTM, or custom pattern.

2. Separate grade from finish

Grade and finish answer different questions. Grade tells us mechanical strength or material. Finish tells us surface protection. For example, "8.8 zinc plated" and "8.8 hot-dip galvanized" are the same strength class but different coating processes. "Stainless A2-70" describes both material family and strength level.

Do not assume that a finish is available for every grade. Some high-strength products require careful coating control, and some structural products have strict restrictions.

3. Say how the product will be used

Application context improves quoting quality. A buyer sourcing wedge anchors for concrete, ASTM A193 B7 stud bolts for flanges, and chipboard screws for furniture needs different factories, inspection points, and packaging logic.

Even one sentence helps: "outdoor timber construction", "steel frame bolting", "retail hardware packs", "oil and gas flange service", or "factory maintenance inventory".

4. Confirm packaging early

Packaging can change cost more than buyers expect. Bulk export cartons are economical, but retail small boxes need printing, labels, inner packing, and carton strength checks. Heavy products such as threaded rods, anchor bolts, and structural washers may need reinforced pallets.

5. Decide what inspection means

Inspection can include dimensions, thread gauges, coating thickness, hardness, tensile testing, salt spray, assembly fit, packing, and document review. Not every order needs every test. The right inspection plan depends on product risk and application.

For mixed shipments from Yongnian, HDBolt can coordinate line-item sourcing, factory checks, consolidation, and export documents. Start with the sourcing guide, then send your RFQ through the contact page.