10.9 Flange Bolt & 12 150 Flange Bolts 12 300 Flange Bolts | Wholesale
Cut procurement costs by 22โ35% with factory-direct 10.9 flange bolt and 12 150 flange bolts / 12 300 flange bolts. No middlemen, full traceability, ISO & CE certified.
Every year, corporate buyers lose 15โ25% of margin due to unreliable sourcing, hidden fees, and inconsistent quality. Here are the five most painful gaps we see in the 12 150 flange bolts and 12 300 flange bolts market.
Spot prices for 10.9 flange bolt grades swing 12โ18% annually. Without a wholesale contract, you overpay on every PO.
Mixed batches of 12 150 flange bolts vs 12 300 flange bolts cause assembly line rejections >4%.
Ocean freight volatility + port delays add 8โ14% to total landed cost for 12 300 flange bolts orders.
Missing CE or ISO docs for 10.9 flange bolt shipments blocks customs โ average delay 11 days.
Standard mills quote 45โ60 days. Your production line canโt wait that long for 12 150 flange bolts.
๐ Industry benchmark: 37% of procurement managers report non-conforming fasteners as their top risk. Donโt be a statistic.
Every 10.9 flange bolt and 12 150 flange bolts / 12 300 flange bolts we ship is manufactured in our Hebei plant under strict quality gates. Hereโs what sets us apart.
No trading layers. 10.9 flange bolt blanks are cold-forged, heat-treated, and inspected in-house. You save 18โ28% vs distributor prices.
ISO 9001, CE, RoHS, and ASTM F3125. Every batch of 12 300 flange bolts includes a traceable mill certificate (EN 10204 3.1).
Standard lead time 18โ25 days for 12 150 flange bolts and 12 300 flange bolts. Express air freight available for urgent lines.
| Parameter | 10.9 Flange Bolt | 12 150 Flange Bolts | 12 300 Flange Bolts |
|---|---|---|---|
| Grade / Class | 10.9 (high strength) | Class 12.9 (ultra-high) | Class 12.9 (ultra-high) |
| Tensile Strength (MPa) | 1,040 โ 1,220 | 1,220 โ 1,400 | 1,220 โ 1,400 |
| Hardness (HRC) | 32 โ 39 | 38 โ 44 | 38 โ 44 |
| Diameter Range | M6 โ M24 | M8 โ M20 | M10 โ M24 |
| Length Range | 16 โ 200 mm | 20 โ 180 mm | 25 โ 220 mm |
| Surface Finish | Zinc / Dacromet / HDG | Zinc-Nickel / Black Oxide | Zinc-Nickel / Geomet |
| Standards | ISO 4162, DIN 6921 | ISO 4017, DIN 933 | ISO 4017, DIN 933 |
| Certification | CE, ISO 9001, RoHS | CE, ISO 9001, ASTM F3125 | CE, ISO 9001, ASTM F3125 |
๐ Tip: For 12 150 flange bolts and 12 300 flange bolts, we recommend zinc-nickel plating for 720+ h salt spray resistance.
A German tractor OEM replaced 4 suppliers with our 10.9 flange bolt and 12 150 flange bolts โ saving โฌ0.12 per unit and reducing line stoppages by 73%.
For high-load steel connections, 12 300 flange bolts provide the preload stability required for seismic zones. Used in 12+ high-rise projects in SEA.

๐ฑ WhatsApp & live chat quotes โ average response < 2 hours
๐น What is the difference between 10.9 flange bolt and 12.9 flange bolt?
The 10.9 flange bolt offers tensile strength 1,040โ1,220 MPa (HRC 32โ39), ideal for general industrial and automotive use. 12 150 flange bolts and 12 300 flange bolts are class 12.9 (1,220โ1,400 MPa, HRC 38โ44) for higher preload demands in heavy machinery and structural connections.
๐น Can I mix 12 150 flange bolts and 12 300 flange bolts in the same order?
Yes. We support mixed pallets for 12 150 flange bolts and 12 300 flange bolts with separate batch traceability. Minimum order for each size is 2,000 pcs for cost-efficient logistics.
๐น What certifications do you provide for wholesale 10.9 flange bolt shipments?
We provide ISO 9001, CE, RoHS and EN 10204 3.1 mill certificates. For 12 300 flange bolts destined for North America, we also supply ASTM F3125 compliance docs and F1 test reports upon request.
๐น What is the typical lead time for 12 150 flange bolts and 12 300 flange bolts?
Standard lead time is 18โ25 working days after deposit. For urgent orders, we offer express air freight (7โ10 days). We also hold buffer stock for popular sizes: M10, M12, M16 12 150 flange bolts.
๐น Do you offer OEM/ODM packaging for wholesale flange bolts?
Absolutely. We provide custom labeling, branded polybags, bulk bins, and even private-label boxes. For 10.9 flange bolt OEM orders, we can also imprint your logo on the bolt head (minimum 50,000 pcs per size).
๐น How do you handle shipping costs for 12 300 flange bolts to USA or Europe?
We partner with Maersk, COSCO, and MSC for FCL/LCL. For 12 300 flange bolts orders above 5 tons, we offer free FOB Tianjin. CIF and DDP terms are also available. Request a landed cost breakdown in your quote.
๐น What is the minimum order quantity for 10.9 flange bolt wholesale?
Our MOQ is 3,000 pcs per size for standard 10.9 flange bolt. For 12 150 flange bolts and 12 300 flange bolts, MOQ is 2,000 pcs. Sample orders (50โ200 pcs) are available with full refund on first bulk order.

โWe use 12 150 flange bolts for our excavator assembly. Boenโs quality is consistent, and the pricing is 22% better than our previous Turkish supplier. Lead times are reliable.โ

โAfter a failed batch from another supplier, Boen delivered 10.9 flange bolt samples in 5 days. Full traceability, clear documentation. Now our primary fastener partner.โ

โThe 12 300 flange bolts meet our DIN 933 specs perfectly. We tested 3,000 pcs โ zero failures in torque-angle testing. Highly recommend for high-stress applications.โ

โWe switched from a local distributor to Boen for 10.9 flange bolt wholesale. Saved 31% on total landed cost. The team helped us with customs docs for Spain โ seamless.โ

10+ years in cold forging & heat treatment ยท 200+ B2B fastener projects worldwide
Get a customized wholesale quote for 10.9 flange bolt, 12 150 flange bolts, or 12 300 flange bolts within 24 hours. Free samples for first-time buyers.
๐ Risk-free: Free samples ยท Money-back guarantee on first order ยท DDP available
๐ +86 15630072814 | โ๏ธ shuan@fastenboen.com | ๐ Hanguang Industrial Park, Handan, China
๐ญ Trusted by 300+ Buyers in 30 Countries โ Factory & Certifications
๐ธ Hanguang Industrial Park, Handan โ 22,000 mยฒ production base
๐ Certifications & Compliance
๐ข Trusted by Global Brands
โWe switched to Boen for 12 300 flange bolts โ 19% cost reduction and zero non-conformance in 8 months.โ
โ Procurement Lead, European Agricultural OEM