Metric Socket Head Cap Screw Chart & Counterbore Specs | Factory
๐ฉ Metric Socket Head Cap Screw Chart & Counterbore Specs โ Factory Direct
Stop wasting hours searching for accurate metric socket head cap screw counterbore dimensions. Get the exact technical data plus factory-priced fasteners โ delivered to your job site in days, not weeks.
๐ญ 100,000+ pcs daily capacity
โก The Real Cost of Using the Wrong Socket Head Cap Screw
Counterbore Mismatch
Using incorrect metric socket head cap screw counterbore dimensions leads to rework, stripped threads, and assembly delays. 63% of engineers report at least one project delay per quarter due to fastener spec errors.
Hidden Procurement Costs
Splitting orders across multiple suppliers for metric socket head cap screw chart data + actual fasteners inflates your TCO by 18โ27%. One-stop sourcing eliminates this waste.
Quality Variability
Inconsistent hardness, poor thread fit, and surface corrosion from low-cost imports. 1 in 4 fasteners from non-certified sources fails torque testing.
Logistics & Lead Time
Ocean freight delays of 14โ21 days are common. Air freight adds 30โ40% to your landed cost. You need a supplier who ships from stock within 48 hours.
๐ Complete Metric Socket Head Cap Screw Chart & Counterbore Dimensions
One reference table for all standard sizes โ M3 to M24. Use this data to design your counterbore, select the right screw, and order with confidence.
| Size | Thread Pitch (mm) | Head Diameter (mm) | Head Height (mm) | Hex Socket Size (mm) | Counterbore ร (mm) | Counterbore Depth (mm) |
|---|---|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 3.0 | 2.5 | 6.0 | 3.2 |
| M4 | 0.7 | 7.0 | 4.0 | 3.0 | 8.0 | 4.2 |
| M5 | 0.8 | 8.5 | 5.0 | 4.0 | 10.0 | 5.2 |
| M6 | 1.0 | 10.0 | 6.0 | 5.0 | 11.5 | 6.2 |
| M8 | 1.25 | 13.0 | 8.0 | 6.0 | 15.0 | 8.2 |
| M10 | 1.5 | 16.0 | 10.0 | 8.0 | 18.5 | 10.2 |
| M12 | 1.75 | 18.0 | 12.0 | 10.0 | 21.5 | 12.2 |
| M16 | 2.0 | 24.0 | 16.0 | 14.0 | 28.0 | 16.2 |
| M20 | 2.5 | 30.0 | 20.0 | 17.0 | 35.0 | 20.2 |
๐ All dimensions in millimeters. Counterbore specs follow ISO 10642. Tolerance ยฑ0.1 mm.
Factory-Direct Pricing
Eliminate broker margins. Our metric socket head cap screw chart pricing is 100% transparent โ no hidden fees.
OEM/ODM Customisation
Need a non-standard head height or special coating? We machine custom batches in 7โ12 days.
High-Speed Delivery
Stock orders ship within 48 hours. Express air freight available for urgent production lines.
Full Certifications
ISO 9001, CE, RoHS, and more. Every batch traceable to raw material mill.
๐ Real-World Applications
Agricultural Machinery
A German tractor OEM replaced their existing supplier with Boen and saved 22% on fastener costs while improving torque consistency.
Structural Steel Frames
A UK construction firm uses M12โM20 socket head cap screws for modular building joints. Zero field failures in 18 months.
Automotive Jigs & Fixtures
An automotive Tier 1 supplier uses our M8โM10 screws for assembly jigs โ 37% faster fit-up due to precise counterbore match.
๐ค Trusted by Engineering Teams Across 30+ Countries
๐ญ 10,000mยฒ production facility
๐ฌ In-house hardness & torque testing
๐ฆ 500+ tons ready stock
Procurement Lead, German Agricultural OEM
"We switched to Boen for M6โM12 socket head cap screws. Their metric socket head cap screw counterbore dimensions matched our drawings perfectly. 22% cost reduction and zero rejects in the first 6 months."
Operations Manager, UK Construction
"The metric socket head cap screw chart they provided saved me hours of design time. Fast delivery, consistent quality. We now use them for all M8โM20 fasteners."
Technical Director, US Automotive Supplier
"Boen's OEM team customised a batch of M10 screws with a special coating for our jig fixtures. Lead time was 9 days โ half of what we expected. Excellent communication."
โ Frequently Asked Questions
๐ What is the difference between a metric socket head cap screw and a regular bolt?
Socket head cap screws have a cylindrical head with a hex socket drive, allowing for higher torque and a cleaner appearance. Our metric socket head cap screw chart shows all head dimensions โ they are designed for counterbore applications where a flush surface is required.
๐ง How do I determine the correct metric socket head cap screw counterbore dimensions?
Use the table above: for each screw size, the counterbore diameter equals the head diameter plus 0.5โ1.0 mm clearance, and depth equals head height plus 0.2 mm. We provide a free CAD template with every bulk order.
๐ What are your minimum order quantities (MOQ) for metric socket head cap screws?
Standard sizes (M3โM12) have an MOQ of 1,000 pcs per size. For larger sizes (M16โM24) the MOQ is 500 pcs. OEM/ODM custom orders start at 2,000 pcs. We also offer sample packs โ contact us for details.
๐ Do you ship to the USA and Europe? What are the lead times?
Yes โ we ship to 30+ countries including the USA, UK, Germany, France, and Australia. Stock orders: 48 hours dispatch. Air freight: 5โ7 days door-to-door. Sea freight: 14โ21 days. We handle all customs documentation.
๐ What certifications do your socket head cap screws carry?
All our Metric Socket Head Cap Screws are manufactured under ISO 9001:2015 quality management. We also provide CE, RoHS, and FCC compliance upon request. Material test certificates are included with every shipment.
๐ณ What payment methods do you accept?
We accept T/T (wire transfer), L/C (letter of credit), PayPal, and Alibaba Trade Assurance. For first-time orders, a 30% deposit is required, with 70% balance before shipment. Long-term credit terms available for approved buyers.
๐ ๏ธ Can I get a sample before placing a bulk order?
Absolutely. We offer free samples (up to 5 pcs per size) โ you only pay shipping. This allows you to verify the metric socket head cap screw counterbore dimensions and quality before committing to a full order. Request your sample via the form below.
Ready to Source Your Metric Socket Head Cap Screws?
Get factory pricing, a detailed metric socket head cap screw chart PDF, and counterbore CAD files โ all within 24 hours.
๐ง shuan@fastenboen.com | ๐ +86 15630072814 | โฐ MonโSat 09:00โ17:00
โ Free samples available | โ 30-day money-back guarantee on first order | โ ISO 9001 certified
โญ Real Reviews from Our Customers
Supply Chain Manager, Italian Machinery
"The metric socket head cap screw chart from Boen is the most accurate I've seen. We use M8 and M10 for our packaging machines. Delivery was 3 days early. Highly recommended."
Technical Director, US Robotics
"We needed custom M6 screws with a specific head height for a robot arm joint. Boen's OEM team nailed it. Prototype in 7 days. Will order again."
Operations Manager, French Aerospace Supplier
"We audit all our fastener suppliers. Boen passed with 98% quality score on first inspection. Their counterbore spec data was exactly as per ISO 10642. Very professional."
โ๏ธ About the Author
David Chen โ Senior Fastener Engineer & International Trade Specialist
With 12+ years in the industrial fastener industry, David has overseen over 800 export shipments to Europe, the Americas, and Southeast Asia. He leads the technical documentation team at Handan Boen Fastener Manufacturing Co., Ltd., and is passionate about helping engineers find the right metric socket head cap screw chart data and counterbore specifications for their projects. Reach him at shuan@fastenboen.com.
