Socket Head Cap Screw Chart & Clearance Hole Chart | Wholesale
Socket Head Cap Screw Chart & Clearance Hole Chart โ Factory-Direct Wholesale
Eliminate guesswork, reduce rework, and source high-strength socket head cap screws with full dimensional data โ trusted by 30+ countries.
โ ISO 9001 ยท CE ยท RoHS ยท 10+ Years Export
โ ๏ธ The Real Cost of Guessing: Why You Need a Reliable Socket Head Cap Screw Chart
Every year, procurement and engineering teams lose thousands of dollars on mismatched fasteners, rework, and delayed shipments. Without a standardized socket head cap screw clearance hole chart, even minor sizing errors can shut down a production line.
Wrong Thread Fit
37% of field failures trace back to incorrect thread class or pitch โ a problem that a proper socket head cap screw chart solves instantly.
Clearance Hole Errors
Using a wrong clearance hole adds 2โ3 hours of machining per assembly. Our clearance hole chart eliminates that waste.
Hidden Supply Chain Costs
Split shipments, rush fees, and rejected batches add 15โ20% to total fastener spend. Factory-direct wholesale eliminates the middleman.
Inconsistent Quality
Low-cost imports often fail hardness and tensile tests. Handan Boen Fastener delivers guaranteed Grade 10.9/12.9 with full traceability.
๐ Bottom line: Without a reliable socket head cap screw clearance hole chart and a trusted wholesale partner, you're leaving money โ and quality โ on the table.
๐ Complete Socket Head Cap Screw Chart & Clearance Hole Chart
Every dimension, every tolerance, every thread specification โ all in one place. Designed for engineers, buyers, and operations managers who demand precision.
| Thread Size | Pitch (mm) | Head Diameter (mm) | Head Height (mm) | Clearance Hole ร (mm) | Grade |
|---|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 3.0 | 3.2 | 12.9 |
| M4 | 0.7 | 7.0 | 4.0 | 4.3 | 12.9 |
| M5 | 0.8 | 8.5 | 5.0 | 5.3 | 12.9 |
| M6 | 1.0 | 10.0 | 6.0 | 6.4 | 12.9 |
| M8 | 1.25 | 13.0 | 8.0 | 8.4 | 12.9 |
| M10 | 1.5 | 16.0 | 10.0 | 10.5 | 12.9 |
| M12 | 1.75 | 18.0 | 12.0 | 12.5 | 12.9 |
๐ Full chart includes M1.6 to M24 and UNC/UNF threads. Contact us for the complete socket head cap screw chart.
Factory-Direct Pricing
Cut out 2โ3 intermediaries. Save 20โ35% vs. distributor pricing with full quality control at our Handan factory.
Precision-Ground Threads
Every screw meets ISO 898-1 Grade 10.9/12.9. Consistent hardness, no burrs, full dimensional inspection.
Same-Day Dispatch
Stock of 500+ tons ensures 95% order fulfillment within 24h. Express shipping to USA/EU in 7โ10 days.
OEM/ODM Capability
Custom thread lengths, coatings (zinc, Dacromet, PTFE), and packaging. Your socket head cap screw chart, your specs.
๐ Where Our Socket Head Cap Screws Are Used
High-vibration joints โ M8โM12 socket head cap screws with nylon patch.
Engine brackets, transmission housings โ Grade 12.9 for maximum clamp load.
Structural connections โ hot-dip galvanized socket head cap screws.
Robotic arms, linear guides โ precision-ground M4โM6 for tight tolerances.
๐ Trusted by 500+ Industrial Buyers Across 30 Countries
โ Selected Partners & Clients โ
+ 200+ OEM partners
RoHS โ
โThe socket head cap screw chart from Boen saved us 3 hours of engineering time per project. Clearance hole data matched our CNC setup perfectly. Weโve cut our fastener spend by 22% since switching.โ
โWe needed M6 and M8 socket head cap screws in a rush. Boen delivered 7 days early โ and every batch passed our thread gauge inspection. Their clearance hole chart is now our team standard.โ
โIโve been sourcing fasteners for 15 years. The socket head cap screw clearance hole chart from Boen is the most accurate Iโve seen. Plus, their factory-direct pricing cut our total cost by 31%.โ
David Hartmann
Senior Fastener Engineer & Supply Chain Strategist ยท 18+ years in industrial threading & standards
David has worked with manufacturers in Germany, China, and the US to optimize bolted joint reliability. He currently leads technical content at Handan Boen Fastener, helping buyers make data-driven fastener decisions. โA proper socket head cap screw chart is the foundation of every safe, cost-effective assembly.โ
โ Frequently Asked Questions โ Socket Head Cap Screw Chart & Wholesale
๐ What is a socket head cap screw clearance hole chart, and why do I need it?
A socket head cap screw clearance hole chart provides the recommended hole diameter for a screw to pass through without engaging the threads. This prevents binding, ensures proper clamp load, and speeds up assembly. Our chart covers M1.6โM24 with metric and imperial options.
๐ฉ Are all socket head cap screws in the chart Grade 12.9?
We stock Grade 10.9 and 12.9 as standard. Grade 12.9 offers the highest tensile strength (1,220 MPa min.) for critical applications. Our socket head cap screw chart clearly marks grade options for each size.
๐ฆ What is the minimum order quantity (MOQ) for wholesale?
Our MOQ is 1,000 pieces per size for standard socket head cap screws. For custom lengths or coatings, MOQ is 3,000 pieces. We offer tiered pricing โ the more you order, the lower your per-unit cost.
๐ Do you ship to the USA and Europe? What are typical lead times?
Yes, we ship to 30+ countries including USA, Germany, UK, France, and Netherlands. Express freight: 7โ10 days. Economy sea freight: 18โ25 days. We provide full tracking and customs documentation.
๐งช How do you ensure quality? Do you provide inspection reports?
Every batch undergoes dimensional inspection, hardness testing, and thread gauge verification. We provide a Certificate of Conformance (CoC) with every shipment. Third-party inspection (SGS, TรV) is available upon request.
๐ณ What payment methods do you accept?
We accept T/T (wire transfer), L/C, PayPal (for samples), and Alibaba Trade Assurance. For first-time orders, a 30% deposit is required; balance before shipment.
๐ Can I get a customized socket head cap screw chart for my specific thread sizes?
Absolutely. We can create a custom socket head cap screw chart tailored to your inventory, including your preferred grades, coatings, and clearance hole recommendations. Just share your specs โ weโll handle the rest.
๐ Do you offer free samples for evaluation?
Yes, we provide free samples for up to 5 sizes (10 pieces each). You only pay shipping. Request samples via our contact form or email โ weโll send them within 48 hours.
โณ Ready to Source with Confidence?
Get your complete socket head cap screw chart & clearance hole chart โ plus a factory-direct quote โ within 24 hours.
๐ฏ Limited-time: Free sample kit with first wholesale order (value up to $120)
๐ง Email: shuan@fastenboen.com ยท mary@fastenboen.com ยท grace@fastenboen.com ยท stella@fastenboen.com
๐ Phone: +86 15630072814 / +86 13293070568
๐ญ Hanguang Industrial Park, Yongnian District, Handan, Hebei, China
โ Risk-free guarantee: If your order doesn't meet the agreed specifications, we'll replace it or issue a full refund. Your trust is our priority.
