Galvanized Hex Bolts & GI Hex Bolt HDG Hex Bolt Hex Bolt Bit | Factory
✦ Slash procurement costs by 28–35% with factory-priced, certified galvanized hex bolts that meet ASTM, ISO & DIN standards. No middlemen. No quality surprises. Same-day dispatch for OEM orders.
Every procurement manager knows the hidden price of substandard fasteners: downtime, safety violations, and lost contracts. Here are the five pain points that keep technical directors and operations managers up at night.
Thin coating leads to red rust in 72 hours — rejected by inspectors, costly rework.
Class 2A/2B mismatches cause 18% field assembly delays — your crew loses hours.
Ocean freight + port fees + customs delays can add 22–30% to your landed cost.
Forced to buy 50k+ pieces — you overstock, warehouse space bleeds budget.
Missing EN 14399 or ASTM F3125 — your safety officer blocks the entire shipment.
No tracking, no traceability, no after-sales — you feel stranded.
“We lost a €2.8M contract because of non-compliant GI hex bolts. Never again.” — Procurement Director, German OEM
From HDG hex bolt marine-grade to hex bolt bit compatible sets, Boen Fastener provides end-to-end quality with full traceability.
30,000 m² production base, 80+ cold heading machines, 12 hot-dip galvanizing lines. 8 million pieces monthly capacity — your order never waits.
In-house lab: salt spray test, hardness test, tensile test. Every batch of GI hex bolt comes with mill certificate EN 10204 3.1.
Stock program: 1,200+ tons of galvanized hex bolts ready. Lead time 7–15 days for standard sizes. Express line available for urgent orders.
| Parameter | GI Hex Bolt | HDG Hex Bolt | Hex Bolt Bit Compatible |
|---|---|---|---|
| Material | Carbon steel C45 / 10.9 | Alloy steel 42CrMo4 / 10.9 | Carbon steel 8.8 / 10.9 |
| Coating | Electro-galvanized, Zn 8–12 µm | Hot-dip galvanized, Zn 55–85 µm | Electro / HDG optional |
| Standard | DIN 933 / ISO 4017 | ASTM F3125 / EN 14399 | DIN 933 / ISO 4014 |
| Size range | M6 – M30 | M12 – M48 | M5 – M24 |
| Salt spray (h) | ≥ 72 h | ≥ 600 h | ≥ 72 h (electro) |
| Packing | 25 kg carton / bulk | 25 kg steel drum / pallet | Blister / bulk / OEM |
* Custom sizes & hex bolt bit drive types (Torx, Phillips, hex socket) available on request.
HDG hex bolt used in highway guardrails, transmission towers, and offshore platforms. Clients: CRCC, Gazprom — zero corrosion failures after 5+ years.
GI hex bolt for tractors, harvesters, irrigation systems. 37% cost reduction vs. European suppliers — same quality, faster lead time.
Galvanized hex bolts for PV mounting structures. 25-year corrosion resistance with HDG coating. 200+ solar farms supplied globally.
Custom hex bolt bit sets for automotive, e-bike, and furniture assembly. Barcode & private label service.
⚙️ Hot-dip galvanizing line #3
🔬 In-house tensile test lab
📦 Ready-for-export packingOur galvanized hex bolts power these global brands
+ 26 more
✅ RoHS · EN 14399 · ASTM“We switched to Boen’s HDG hex bolt for our offshore wind farm. Salt spray test passed 720 hours. Cost savings of 31% compared to our previous supplier. Their quality manager even visited our site.”

📱 Quick response on WhatsApp
📧 Order confirmation & tracking
🔧 After-sales support caseGI (galvanized) hex bolt has an electro-galvanized coating (8–12 µm) suitable for indoor or moderate environments. HDG (hot-dip galvanized) hex bolt has a thicker zinc coating (55–85 µm) offering 5–10x better corrosion resistance for outdoor, marine, and high-humidity applications. Both are available from stock.
Yes. We produce hex bolt bit compatible fasteners with Torx, Phillips, hex socket, and combination drives. Custom bit types available for OEM kits. Min. order quantity just 5,000 pieces for standard sizes.
We accept T/T, L/C, Western Union, and for established clients, 30% deposit + 70% against BL copy. For first-time orders, we recommend L/C at sight or 50% deposit. All prices are FOB Shanghai / CIF Rotterdam / DDP.
Every batch goes through chemical composition analysis, hardness test, tensile test, and salt spray test. We provide mill certificate EN 10204 3.1 and third-party inspection (SGS, BV) upon request. Zero-cost sample for pre-qualification.
Standard sizes (M12–M24) ship in 7–12 days after deposit. Custom sizes or special coatings take 18–25 days. We also offer express air freight for urgent orders (3–5 days).
Absolutely. Free samples for up to 10 pieces of galvanized hex bolts (any size). You only pay shipping. Request via shuan@fastenboen.com — we reply within 4 hours.
Yes. We provide custom blister packs, barcode labels, poly bags with your logo, and even kit assembly. MOQ for OEM packaging: 20,000 pieces. Design support included.
We offer FOB, CIF, CNF, and DDP terms. Our logistics team prepares all export documents (CO, BL, packing list, invoice). DDP ensures you receive the goods with zero customs hassle — we handle everything.

“We tested GI hex bolt from Boen against our existing supplier. Same tensile strength, 28% lower cost. The salt spray test exceeded 80 hours. Now we source all M16–M24 bolts from them. Reliable partner.”

“The HDG hex bolt for our solar farm project arrived 4 days early. Coating thickness uniform, threads perfect. Saved 33% vs. our previous supplier. The team is responsive and professional. Highly recommended.”

“We needed a large volume of galvanized hex bolts for a highway project. Boen delivered 120 tons in 3 shipments, all ASTM F3125 compliant. Their logistics team handled the customs clearance smoothly. Will reorder.”

“The hex bolt bit compatibility was critical for our assembly line. Boen supplied custom mixed batches with Torx drive. Zero defects in 50,000 pieces. Fast delivery to Novosibirsk. Excellent cooperation.”

David has 14 years of experience in fastener manufacturing and international trade. He has overseen quality audits for 200+ OEM projects across Europe and the Americas. He currently leads technical sales at Handan Boen Fastener Mfg. Co., Ltd.
🔹 Free samples (up to 10 pcs)
🔹 Money-back guarantee on first order if not satisfied
🔹 Price match — we beat any genuine competitor quote by 5%
📍 Hanguang Industrial Park, Yongnian District, Handan, Hebei, China | ⏰ Mon–Sat 09:00–17:00