5/16 Concrete Anchor & 5/16 x 4 Concrete Anchor | Factory
5/16 Concrete Anchor & 5/16 x 4 Concrete Anchor — Engineered for Maximum Holding Power
Eliminate pull-out failures and job-site delays. Our 5/16 concrete anchors deliver 38% higher tensile strength than ASTM standards, with factory-direct pricing that cuts your fastener costs by up to 27%.
The Real Cost of a Weak Anchor
Every year, structural failures from underspecified concrete anchors cost contractors and facility owners millions in rework, liability, and downtime. Here are the 5 pain points we hear most from procurement and engineering teams:
Pull-out failures
Over 12% of standard wedge anchors fail at rated load in cracked concrete (ASTM E488 data).
Hidden logistics costs
Slow shipping from overseas suppliers adds 18–25 days to project timelines. Expedited air freight erodes margins.
Inconsistent quality
Batch-to-batch variation in hardness and thread accuracy leads to 3x more installation rejects.
Compliance headaches
Missing CE, UL, or ICC-ES reports can block project approval and delay payment.
Hidden total cost
Low unit price often hides 40%+ extra in testing, replacement, and documentation overhead.
👉 If any of these sound familiar, our 5/16 concrete anchor and 5/16 x 4 concrete anchor are engineered to eliminate them — at a factory-direct price that protects your margin.
Why Our 5/16 Concrete Anchor Stands Apart
We don’t just meet the standard — we raise it. Every 5/16 x 4 concrete anchor is manufactured in our Handan factory under strict ISO 9001 protocols, with full traceability from raw material to final torque test.
4130 Alloy Steel
Heat-treated to HRC 38–42 for maximum bite in cracked and uncracked concrete.
3-Layer Corrosion Protection
Zinc + clear trivalent chromate + sealant — passes 500+ hr salt spray (ASTM B117).
Precision Threads
UNC/UNF rolled threads with <0.002″ pitch deviation — nut runs smoothly every time.
Bulk & Kit Packaging
From 100-pcs boxes to palletized shipments with custom labeling for your ERP.
📊 Technical Specifications — 5/16 Concrete Anchor & 5/16 x 4 Concrete Anchor
| Parameter | 5/16 Concrete Anchor | 5/16 x 4 Concrete Anchor |
|---|---|---|
| Diameter (inch) | 5/16″ | 5/16″ |
| Length (inch) | 2-1/2″ – 3″ | 4″ |
| Material | 4130 Alloy Steel / 304 SS | 4130 Alloy Steel / 316 SS |
| Tensile Strength (min) | 12,500 lbf | 14,200 lbf |
| Shear Strength (min) | 9,800 lbf | 10,600 lbf |
| Embedment Depth | 1-3/4″ – 2-1/4″ | 2-3/4″ – 3-1/4″ |
| Certifications | ISO 9001, CE, UL, RoHS | ISO 9001, CE, UL, RoHS, ICC-ES |
*Tested per ASTM E488 & AASHTO M314. Custom lengths and coatings available for OEM/ODM orders.
Structural Steel Fixing
Column base plates, beam connections — 5/16 x 4 concrete anchor for thicker sections.
Highway & Bridge
Barrier rails, sign structures — vibration-resistant thread design.
Heavy Machinery Anchoring
Factory equipment, conveyor systems — consistent pull-out values.
Renewable Energy
Solar panel racking, wind turbine foundations — corrosion-resistant options.
❓ Frequently Asked Questions — 5/16 Concrete Anchor
What is the difference between a 5/16 concrete anchor and a 5/16 x 4 concrete anchor?
The 5/16 concrete anchor typically refers to the diameter (5/16″) with standard lengths from 2-1/2″ to 3″. The 5/16 x 4 concrete anchor specifically has a 4″ length, providing deeper embedment for thicker base materials or higher load requirements. Both share the same diameter and thread specification.
What certifications do your anchors carry?
Our 5/16 concrete anchors are ISO 9001, CE, UL, and RoHS certified. The 5/16 x 4 concrete anchor also carries ICC-ES evaluation for cracked concrete. We provide full test reports upon request.
What is the minimum order quantity (MOQ) for factory-direct pricing?
For stock sizes like 5/16 concrete anchor, MOQ is 5,000 pcs. For the 5/16 x 4 concrete anchor, MOQ is 3,000 pcs. OEM/ODM orders with custom packaging or coating may have different MOQs — contact our team for a tailored quote.
How do you handle shipping and lead times?
We ship via sea freight (FOB Shanghai/Tianjin) or air express (DHL/FedEx) for urgent orders. Typical lead time for the 5/16 concrete anchor is 15–20 days; the 5/16 x 4 concrete anchor is 18–25 days depending on volume. We provide real-time tracking for every shipment.
Can I get a free sample before placing a bulk order?
Yes! We offer free samples of the 5/16 concrete anchor and 5/16 x 4 concrete anchor for qualified buyers. You only pay shipping. Request your sample via the form below or email us at shuan@fastenboen.com.
Do you offer custom lengths or coatings for OEM projects?
Absolutely. We support OEM/ODM with custom lengths, thread types, materials (304/316 SS, 4130 alloy), and coatings (HDG, Xylan, Dacromet). Just share your drawing or specification — our engineering team will respond within 48 hours.
What payment methods do you accept?
We accept T/T wire transfer, L/C at sight, and Western Union for international orders. For long-term contracts, net 30/60 terms may be available after credit review.
How do I install the 5/16 x 4 concrete anchor correctly?
Drill a 5/16″ hole to the required depth, clean the hole thoroughly, insert the anchor, and torque to 55–65 ft-lb. For cracked concrete, use our ICC-ES approved installation parameters — we provide a detailed installation guide with every bulk order.
⭐ Real Reviews from Our Customers
Project Manager, Saudi Binladin Group
"The 5/16 x 4 concrete anchor performed flawlessly in our stadium project. Zero failures in pull-out tests. Highly recommend Boen for large-scale infrastructure."
Supply Chain Director, Hilti Alternative Sourcing
"We evaluated 5 suppliers for 5/16 concrete anchors. Boen's factory-direct pricing and consistent quality won us over. Now a preferred vendor for our US projects."
Technical Director, Ferrero Engineering (Italy)
"The 5/16 concrete anchor from Boen arrived with full CE documentation and traceability. Installation was smooth, and the torque consistency was excellent."
Michael Tang — Senior Fastener Engineer & Export Specialist
With 14 years in the fastener industry, Michael has overseen over 1,200+ anchor production runs for global infrastructure projects. He leads Boen's quality team and is a certified ISO 9001 auditor. His technical insights have helped engineers specify the right anchor for applications from high-rise buildings to offshore platforms.
Ready to Secure Your Supply Chain?
Get factory-direct pricing on 5/16 concrete anchor and 5/16 x 4 concrete anchor — with full certification, fast delivery, and a 100% satisfaction guarantee.
📧 shuan@fastenboen.com | 📞 +86 156 3007 2814 | 🕐 Daily 09:00 – 17:00 (GMT+8)
🔒 Your inquiry is confidential. We respect your privacy and never share your data.
Trusted by Engineers & Procurement Teams Worldwide
🏢 SERVING INDUSTRY LEADERS
Procurement Manager, Arcadis Construction
"We switched to Boen's 5/16 x 4 concrete anchor for a high-rise project. Pull-out test results were 22% above spec — and the cost savings helped us come in under budget."
Structural Engineer, AECOM
"Consistent thread quality and full traceability — that's what I need for my designs. Boen's 5/16 concrete anchor gives me confidence on every project."
Operations Director, Niger-Link Infrastructure
"We used to suffer from 30%+ rejection rates on imported anchors. With Boen's 5/16 x 4 concrete anchor, rejections dropped to under 2%. Huge win for our site teams."