M8 x 20mm Bolt & M8 x 25mm Bolt M8 x 30mm Bolt M8 x 50mm Bolt | Factory
M8 x 20mm Bolt & M8 x 25mm Bolt M8 x 30mm Bolt M8 x 50mm Bolt | Factory
Stop Overpaying for Standard M8 Bolts.
Factory-Direct Pricing for M8 x 20mm, M8 x 25mm, M8 x 30mm & M8 x 50mm Bolts.
Eliminate supply chain risk and reduce your total cost of ownership (TCO) with precision-engineered metric bolts from a certified ISO 9001:2015 factory. 100% traceable materials, competitive lead times, and global shipping.
๐ญ Our ISO 9001 certified workshop in Handan, China.
The Hidden Costs of Substandard M8 Bolts in Industrial Applications
Relying on uncertified fasteners or inefficient supply chains can silently erode your margins. Here are the critical pain points we solve for our clients.
Inconsistent Thread Quality
Poor thread pitch leads to assembly failures and rework. Industry data shows that 15% of mechanical breakdowns stem from substandard fasteners.
Hidden TCO & Price Volatility
Broker markups and fluctuating raw material costs inflate your procurement budget. Factory-direct sourcing cuts costs by 25-40% and stabilizes your supply chain.
Supply Chain Delays & High MOQs
Long lead times and rigid minimum order quantities (MOQs) cause project delays. We offer flexible MOQs and 7-15 day lead times for standard sizes.
Non-Compliance & Counterfeit Risk
Using non-certified bolts in critical applications (automotive, construction) can lead to shutdowns and legal liability. ISO 898-1 & ASTM F568 compliance guaranteed.
Boen Fasteners: Precision-Grade M8 Bolts from a Trusted Factory
We combine engineering expertise with vertical integration to deliver the best value metric bolts on the market.
Direct Factory Power
Eliminate middlemen. Our factory in Handan, China, controls every step from raw material to finished product, ensuring 30% lower costs compared to distributors.
Material Science Expertise
From 8.8/10.9 grade carbon steel to 304/316 stainless steel. We offer zinc plating, hot-dip galvanizing, and black oxide finishes to meet your specific corrosion resistance needs.
OEM/ODM Capabilities
Need a custom length like M8 x 22mm or a specific head marking? Our engineering team can deliver custom prototypes in 5-7 days.
High-Speed Delivery
Standard sizes ship in 7-15 days. We manage logistics to over 30 countries, including the USA, Germany, and the UK, with full tracking.
๐ Technical Specifications & Mechanical Properties
| Parameter | M8 x 20mm Bolt | M8 x 25mm Bolt | M8 x 30mm Bolt | M8 x 50mm Bolt |
|---|---|---|---|---|
| Thread Pitch | 1.25mm (Coarse) | 1.25mm (Coarse) | 1.25mm (Coarse) | 1.25mm (Coarse) |
| Material Grade | 8.8 / 10.9 / SS304 | 8.8 / 10.9 / SS304 | 8.8 / 10.9 / SS304 | 8.8 / 10.9 / SS316 |
| Tensile Strength (Min) | 800 MPa (8.8) | 800 MPa (8.8) | 1040 MPa (10.9) | 1040 MPa (10.9) |
| Finish | Zinc / Black Oxide | Zinc / HDG | Plain / Zinc | HDG / Black Oxide |
| Standards | DIN 933 / ISO 4014 | DIN 933 / ISO 4014 | DIN 912 / ISO 4762 | DIN 933 / ISO 4014 |
*Custom lengths, coatings, and head types (Hex, Socket Cap, Flange) available upon request. Contact us for a complete technical datasheet.
๐ง Where M8 Bolts Are Used
- ๐ Automotive โ Engine mounts, chassis assemblies, brake systems.
- ๐๏ธ Construction โ Steel structures, scaffolding, concrete formwork.
- ๐พ Agriculture โ Tractor linkages, harvester blades, irrigation systems.
- โ๏ธ General Manufacturing โ Conveyor systems, jigs, fixtures, pumps.
Case Study: German Automotive Tier 1 Supplier
A client needed a steady supply of M8 x 30mm bolts (10.9 grade) with a specific zinc-flake coating. By switching to Boen Fasteners, they achieved a 22% reduction in cost per unit and improved delivery reliability, cutting their inventory holding costs by 18%.
โ Frequently Asked Questions About M8 Bolts & Factory Procurement
What is the standard lead time for M8 x 20mm bolts?
For standard sizes like M8 x 20mm and M8 x 25mm, our lead time is typically 7-10 days after confirmation. For larger orders or custom finishes, please allow 15-20 days.
Can I get a custom length, like M8 x 22mm or M8 x 45mm?
Absolutely. We specialize in OEM/ODM production. Custom lengths, head markings, and packaging are available. Minimum Order Quantity (MOQ) for custom lengths is typically 5,000 pieces.
What is the difference between 8.8 and 10.9 grade M8 bolts?
Grade 8.8 bolts have a tensile strength of 800 MPa and are suitable for general structural applications. Grade 10.9 bolts (tensile strength 1040 MPa) are high-strength and used in critical applications like automotive and heavy machinery.
Do you offer third-party inspection (SGS, TUV)?
Yes, we welcome third-party inspections. Our quality control process is transparent, and we can coordinate with SGS, TUV, or Bureau Veritas at the client's cost.
What is your MOQ for M8 bolts?
For standard stock sizes (M8 x 20mm, M8 x 25mm, M8 x 30mm, M8 x 50mm), our MOQ is 1,000 pieces per size. For custom specifications, please contact our sales team.
How do you handle shipping to the USA or Europe?
We offer FOB, CIF, and DDP terms. We ship via sea or air, and we manage all customs documentation. Our logistics partners include Maersk, MSC, and DHL Express.
โญ What Our Clients Say About Boen Fasteners
"We switched to Boen for our M8 x 30mm and M8 x 50mm bolts. The quality consistency is outstanding, and we reduced our procurement costs by 28%. Their ISO certifications gave us the confidence to make the switch. Highly recommended."
"Fast delivery and great communication. The M8 x 20mm bolts were perfect for our steel framing. We also appreciated the flexible MOQ which helped us avoid overstocking. A reliable partner for our projects."
"Boen's technical expertise is second to none. They helped us select the correct grade for a high-stress application. The tensile test reports provided full traceability. We've standardized on their M8 fasteners."
"We needed a reliable supplier for M8 x 25mm HDG bolts. Boen delivered on time and the quality was superior to our previous supplier. Their OEM service for custom packaging was a great bonus."
David Chen
Senior Fastener Engineer & Supply Chain Analyst at Boen Fasteners. With over 15 years in the global fastener industry, David has overseen production for projects in 30+ countries. He is a recognized expert in material science and supply chain optimization for industrial fasteners.
๐ฑ Real Conversations with Our Clients
Ready to Secure Your Supply Chain?
Get a factory quote, request free samples, or schedule a technical consultation. We typically respond within 4 hours.
๐ Free samples for qualified buyers. Risk-free trial with 100% money-back guarantee on first order.
๐ Global Trust & Industry Certifications