M5 Dome Head Screws & Alloy Steel Flanged Button Head | Factory
Eliminate supply chain risk and reduce your TCO with high-strength M5 dome head screws and alloy steel flanged button head screws, engineered for automotive, construction, and industrial applications.
โ Factory-direct pricing โ ISO 9001 certified โ 10+ years export expertise โ 30+ countries served
Every year, procurement and operations teams lose millions due to fastener failures, hidden logistics costs, and inconsistent quality. Here are the pain points we hear most from buyers like you.
Substandard M5 dome head screws with tensile strength below 800 MPa cause joint failure in automotive and machinery assemblies, leading to costly recalls and downtime. Industry data shows that 12% of fastener failures are due to insufficient heat treatment.
Low-cost suppliers often hide quality issues, resulting in rework, delayed shipments, and emergency sourcing. Our customers report up to 37% reduction in TCO after switching to Boen Fasteners.
Global supply chain volatility makes it hard to plan. Late deliveries of alloy steel flanged button head screws can halt production lines. We maintain 95% on-time delivery with a 15-day lead time for standard orders.
Inadequate zinc plating or Dacromet coating leads to rust in humid or outdoor environments. 72 hours salt spray test is the minimum we accept โ far exceeding industry standards.
Missing CE, RoHS, or ISO certifications can block your products from entering European and North American markets. All Boen fasteners are fully traceable and certified.
Language barriers, time zone differences, and slow response times create frustration and delays. Our English-speaking team responds within 4 hours during business days.
At Handan Boen Fastener, we combine advanced cold-forming technology, precision heat treatment, and strict quality control to deliver alloy steel flanged button head screws and M5 dome head screws that meet the highest standards of strength, consistency, and durability.
Eliminate middlemen. Our factory in Handan, China, produces over 10 million fasteners monthly, ensuring you get M5 dome head screws at the most competitive prices without sacrificing quality.
Every batch undergoes controlled carburizing and quenching to achieve a core hardness of HRC 32-39 and a case depth of 0.15โ0.25 mm, delivering consistent torque and clamp load.
From raw material mill certificates to final inspection reports, every shipment of alloy steel flanged button head screws is fully documented and traceable.
Need a specific thread length, drive type, or coating? We offer complete OEM/ODM design support with fast prototyping and samples.
With 10+ years of export experience, we handle shipping, customs, and documentation to 30+ countries โ free samples available for qualified buyers.
We partner with SGS and TรV for periodic inspections. AQL 0.65 level II sampling is standard for all export orders.
| Parameter | M5 Dome Head Screw | Alloy Steel Flanged Button Head |
|---|---|---|
| Thread Size | M5 x 0.8 | M5 x 0.8 |
| Material | Alloy steel (10B21 / 40Cr) | Alloy steel (SCM435 / 40Cr) |
| Hardness (Core) | HRC 32โ39 | HRC 35โ40 |
| Tensile Strength | โฅ 800 MPa | โฅ 1000 MPa |
| Surface Treatment | Zinc plating / Dacromet / Black oxide | Zinc-nickel / Dacromet / Geomet |
| Salt Spray Resistance | 72โ120 hours | 120โ240 hours |
| Drive Type | Hex socket (Allen) / Torx | Hex socket / Torx / Phillips |
| Standards | DIN 7985 / ISO 7380-1 | ISO 7380-2 / DIN 7985 |
| Packaging | Bulk / Box / Custom labeling | Bulk / Box / Custom labeling |
*Custom specifications available upon request. Contact us for OEM/ODM designs.
Ideal for engine brackets, interior trim, and under-hood components. Our alloy steel flanged button head screws provide vibration resistance and clamp load stability.
Used in steel framing, handrails, and heavy equipment. M5 dome head screws offer a low-profile finish with high pull-out resistance.
Reliable fastening for conveyor systems, pumps, and gearboxes. Our heat-treated alloy steel ensures long-term fatigue resistance in high-cycle applications.
Our fasteners are used by top-tier companies in automotive, construction, and industrial sectors. Hereโs what our customers say.


"We switched to Boen for our M5 dome head screws and reduced our fastener costs by 22% while improving delivery reliability. Their quality documentation is impeccable."

"The alloy steel flanged button head screws from Boen meet our stringent specs. Zero defects in the last 6 shipments โ thatโs reliability we can count on."

"Boen helped us cut lead time by 30% compared to our previous supplier. Their logistics team handles all the paperwork seamlessly."


Our production facility in Hanguang Industrial Park, Handan โ 10+ years of manufacturing excellence.
Quick answers to the most common questions from procurement and engineering teams.
We offer alloy steel (10B21, 40Cr, SCM435), stainless steel (304, 316), and carbon steel. For high-strength applications, we recommend alloy steel flanged button head screws with heat treatment.
Standard MOQ is 10,000 pieces per size. For trial orders or sample requests, we offer free samples (shipping cost covered by buyer) to qualified customers.
Yes. We can customize head diameter, thread length, drive type, and surface coating. Send us your drawing or sample, and we will provide a CAD-based quotation within 48 hours.
Our products are certified with ISO 9001, CE, RoHS, and FCC. We also provide material test reports and dimensional inspection certificates with every shipment.
Standard lead time is 15โ20 working days after order confirmation. For urgent orders, we offer expedited production at 10โ12 working days.
We follow a strict AQL 0.65 level II sampling plan for all export orders. In-process inspection, hardness testing, dimensional checks, and salt spray tests are performed on every batch.
We support FOB, CIF, DDP, and EXW terms. For small orders, we use express (DHL, FedEx, UPS). For bulk orders, sea freight from Tianjin or Qingdao port. Free logistics consultation for all new customers.
Absolutely. Our team provides 24/7 after-sales support via email, WhatsApp, and phone. We also offer replacement for any non-conforming products.
Real feedback from buyers who rely on Boen Fasteners for their critical applications.

"The alloy steel flanged button head screws from Boen are consistently within tolerance. Weโve reduced our inspection time by 40%."

"Fast response, great quality, and competitive pricing on M5 dome head screws. Boen is now our preferred fastener supplier."

"We appreciate the OEM flexibility and fast turnaround. The team at Boen really understands our needs."

With over 15 years of experience in the fastener industry, Zhang Wei oversees quality control, process optimization, and new product development at Boen Fasteners. He has helped more than 200 international clients select the right fasteners for their applications, from automotive to construction. His expertise ensures that every article delivers practical, data-driven insights backed by real manufacturing experience.
See how our team helps customers find the right fastening solutions โ every time.

Get your free sample and competitive quote within 24 hours. No minimum commitment for first-time buyers.
๐ฏ Limited-time offer: Free shipping on first orders over $500 | 100% quality guarantee or your money back
๐ Hanguang Industrial Park, Yongnian District, Handan City, Hebei Province, China | ๐ Daily 09 am โ 05 pm