💰 Hidden TCO

Low-cost M20 cap screws often fail torque tests, causing rework rates above 12%. The total cost of ownership (TCO) skyrockets when you factor in downtime and warranty claims.

📉 Inconsistent Quality

M20 socket head cap screws from unverified suppliers often have deviations in head height and thread pitch, leading to assembly line stoppages and dangerous joint failures.

🚢 Logistics Nightmares

High shipping costs and unpredictable delays plague cross-border procurement. 40% of buyers report late deliveries from Asian suppliers, impacting their own production schedules.

🔍 Compliance Gaps

Missing or fake certifications (ISO, CE, RoHS) expose your company to legal liabilities and project rejections. We provide full material traceability and genuine test reports.

Why Precision Matters in M20 Threaded Fasteners

• Cold Forging Process: Ensures superior grain flow for maximum tensile strength (up to 12.9 grade).
• Precision Thread Rolling: Eliminates sharp edges and reduces the risk of galling during high-torque assembly.
• Heat Treatment: Computer-controlled furnaces guarantee consistent hardness across every batch.
• 100% Dimensional Inspection: Automated optical sorting ensures zero defect shipments.

Powerful Factory

Est. 2010, 12,000 sqm facility. We control the entire production chain – from raw material to surface treatment. This ensures consistent quality and lower costs.

Quality Assurance

ISO 9001 certified. In-house tensile testing, salt spray testing, and hardness testing. Every batch of M20 cap screws comes with a full Material Test Report (MTR).

OEM/ODM Design

Need a non-standard length or special coating? Our engineering team supports custom designs. Lead time for prototypes is just 7-10 days.

High-Speed Delivery

Strategic inventory of raw materials allows us to ship standard M20 socket head cap screws in 2-4 weeks. We handle all logistics, including consolidated shipping to reduce freight costs.

John M.

Procurement Manager, Germany

"We switched to Boen for our M20 socket head cap screws. They reduced our fastener costs by 25% while maintaining the DIN 912 quality we require. Their test reports are impeccable."

Maria S.

Operations Director, USA

"The shipping costs from Asia were killing us. Boen helped us consolidate orders and optimize logistics. Our total landed cost dropped by 18%, and delivery is consistently on time."

David L.

Technical Director, UK

"We needed a custom length M20 cap screw for a special jig. Boen's OEM team delivered prototypes in 8 days. The quality of the threading is excellent – no binding issues at all."

1. What is the difference between an M20 Cap Screw and an M20 Socket Head Cap Screw?

The primary difference is the drive type. An M20 cap screw (hex bolt) has an external hex head, while an M20 socket head cap screw has a cylindrical head with an internal hex drive (Allen key). Socket head screws are ideal for tight spaces and higher torque applications. Both are available in Grade 8.8, 10.9, and 12.9.

2. What grade of M20 bolt do I need for structural applications?

For structural steel connections, Grade 10.9 or 12.9 is typically required. We recommend consulting your engineer. We supply M20 cap screws with full traceability to ASTM A490 and ISO 898-1 standards.

3. Do you offer custom lengths for M20 socket head cap screws?

Yes, we specialize in OEM/ODM. We can manufacture M20 socket head cap screws in any length from 20mm to 500mm. The MOQ for custom lengths is typically 2,000 pieces, but we can discuss based on your project.

4. What are your MOQs for M20 cap screws?

For standard M20 cap screws in Grade 8.8, our MOQ is 500 pieces. For Grade 10.9 and 12.9, the MOQ is 1,000 pieces. We hold stock for fast-moving sizes, so please ask about our Quick Ship Program.

5. How do you ensure quality control?

We have a 3-stage QC process: Incoming raw material inspection, in-process dimensional checks, and final batch testing. Our lab conducts tensile, hardness, and salt spray tests. A Certificate of Conformance (CoC) is provided with every shipment.

6. What is your typical lead time and shipping cost?

Standard lead time is 2-4 weeks. We offer FOB, CIF, and DDP terms. Our logistics team can consolidate your order to reduce shipping costs by up to 15% compared to LCL shipments.

7. Do you have stock in the USA or Europe?

We operate regional warehouses in Rotterdam (NL) and Houston (TX) for fast-moving items. Please contact our sales team to check real-time inventory for M20 socket head cap screws.

8. What payment methods do you accept?

We accept T/T (wire transfer), L/C (letter of credit), and for established customers, net 30 terms are available. We also accept credit cards for sample orders.