4 Concrete Screws & 4 Inch Concrete Screws | Supplier
Premium 4 Concrete Screws & 4 Inch Concrete Screws โ Factory-Direct Supplier
โ Cut TCO by up to 32% ยท โ ISO 9001 ยท โ 10+ yrs export ยท โ 24h sample delivery
Target audience: Procurement managers, technical directors & ops leaders in construction, automotive & agri machinery.
๐ Get Free Quote in 24hโ No minimum order ยท โ ERP-ready data sheets ยท โ Free samples
๐ค The Real Cost of Cheap Concrete Screws
- ๐ด Hidden failure rate >7% โ leading to rework, project delays & penalty clauses.
- ๐ด Inconsistent thread geometry โ causes stripping in concrete, increases scrap by 12โ18%.
- ๐ด High total cost of ownership โ cheap screws need 2โ3ร more replacements over a 5-year cycle.
- ๐ด Logistics headaches โ mixed batches, wrong plating, missing certifications (CE, ICC-ES).
- ๐ด Supplier risk โ 43% of buyers report compliance failures from low-cost sources (Source: 2025 ProcureSurvey).
- ๐ด No technical support โ can't get load data, torque specs or installation guidance when you need it.
๐ Industry Benchmark
A 2025 study by Construction Fastener Institute found that 4-inch concrete screws with improper case hardening fail 3.2ร faster in heavy-duty anchor applications.
BOEN Fasteners rejects less than 0.3% across 30+ countries โ because we control every step from steel sourcing to heat treatment.
๐ง Our Solution: Engineered 4 Concrete Screws That Deliver
Designed for 4 inch concrete screws applications โ from structural framing to heavy equipment anchoring.
Powerful Factory, Direct Control
4 production lines dedicated to 4 concrete screws โ capacity of 2.8M pcs/month. In-house heat treatment, thread rolling & plating ensure consistent quality.
Certified Quality Assurance
ISO 9001, CE, ICC-ES compliance. Every batch of 4 inch concrete screws tested for hardness, pull-out, and torque per ASTM C1063 & AISI 304 standards.
OEM/ODM Design Capability
Custom head styles, thread patterns, coatings (Zn, HDG, Dacromet) and packaging. We've designed over 240 custom SKUs for European & American clients.
High-Speed Delivery
Sample lead time: 24h (stock sizes). Bulk orders: 15โ25 days. We use ERP-linked logistics for real-time tracking โ FedEx, DHL, sea freight LCL/FCL.
Unbeatable Cost-Performance
Factory-direct pricing eliminates 2โ3 intermediary margins. Typical saving: 31โ37% vs. European distributors for comparable 4 inch concrete screws.
One-Stop Service
From material selection (C45, 40Cr, 304SS) to logistics tracking. We provide ERP-ready spec sheets, PLM files, and compliance dossiers for your procurement system.
๐ Real-World Application Scenarios
๐ Technical Specifications โ 4 Concrete Screws & 4 Inch Concrete Screws
All data verified by in-house lab & third-party testing (TรV SรD periodic audit).
| Parameter | 4 Concrete Screws (Standard) | 4 Inch Concrete Screws (Heavy-Duty) |
|---|---|---|
| Length | 3.5โณ โ 4โณ (88โ102 mm) | 4โณ exactly (102 mm ยฑ0.5 mm) |
| Thread Diameter | #10 โ 1/4โณ (4.8โ6.3 mm) | 5/16โณ โ 3/8โณ (7.9โ9.5 mm) |
| Material Grade | C45 carbon steel, 40Cr alloy | AISI 304SS / 316SS or 40Cr + HDG |
| Hardness (HRC) | 42โ48 HRC | 48โ53 HRC |
| Pull-Out Load (4โณ embed) | 2,800 โ 3,200 lbf | 4,100 โ 4,800 lbf |
| Coating | Zinc plated (clear/yellow) | Hot-dip galvanized / Dacromet |
| Certification | ISO 9001, CE, RoHS | ISO 9001, CE, ICC-ES, ASTM C1063 |
| Packaging | Bulk 100โ500 pcs / box; custom kitting | Bulk 100โ200 pcs / box; OEM branding |
๐ฌ Full test reports available on request โ including torque-to-failure, salt spray (ASTM B117) and seismic qualification.
โ Frequently Asked Questions about 4 Concrete Screws
Q1: What is the difference between standard 4 concrete screws and heavy-duty 4 inch concrete screws?
Standard screws suit light-to-medium loads (e.g., shelving, brackets). Heavy-duty 4 inch concrete screws feature higher hardness (48โ53 HRC), thicker thread profile, and higher pull-out loads (4,100+ lbf). They are designed for structural anchoring, seismic zones, and heavy machinery.
Q2: Do you offer customized thread length or head type for 4 concrete screws?
Yes. We offer OEM/ODM customization: hex head, flat head, Phillips/ square drive, undercut threads, and special coatings. Minimum order for custom 4 inch concrete screws is 10,000 pcs. Lead time 18โ22 days.
Q3: What is the typical lead time for bulk orders of 4 inch concrete screws?
For standard sizes: 15โ20 days (FOB). For custom specifications: 20โ28 days. Samples shipped within 24h via DHL/FedEx. We also offer split-shipment options to reduce your inventory cost.
Q4: Which certifications do your 4 concrete screws comply with?
All our 4 concrete screws are manufactured under ISO 9001:2015 certified processes. We also provide CE marking, ICC-ES evaluation reports, RoHS, REACH compliance, and ASTM C1063 test data. Third-party testing (TรV SรD) available on request.
Q5: What is the minimum order quantity (MOQ) for 4 inch concrete screws?
MOQ for stock sizes: 5,000 pcs. For first-time buyers we offer a trial order of 1,000 pcs at the same unit price. No MOQ for samples โ just pay shipping.
Q6: How do you ensure consistent quality across large batches?
We follow a 3-stage QA process: (1) Incoming steel inspection (spectrometer), (2) In-process SPC checks every 30 min, (3) Final batch sampling per ISO 2859. Our defect rate is 0.3%, and we provide a full COA with each shipment.
Q7: What payment terms do you offer for international buyers?
Standard: T/T (30% deposit, 70% before shipment). For established clients: L/C at sight, or net 30 after credit check. We also accept PayPal for sample orders. All pricing is FOB Tianjin or CIF destination.
Q8: Can you provide free samples for testing before bulk order?
Absolutely. We offer free samples of standard 4 concrete screws (up to 20 pcs) โ you only pay for shipping. Custom samples are charged at cost, refundable with first bulk order. Request via our form or email us.
๐ Ready to Secure Your Supply of Premium 4 Inch Concrete Screws?
โก Limited-time offer: Free sample kit + engineering consultation for first 20 inquiries this month.
โ Risk-free trial: If our 4 concrete screws don't meet specs, we'll replace or refund โ guaranteed.
๐ง shuan@fastenboen.com ยท mary@fastenboen.com ยท grace@fastenboen.com ยท stella@fastenboen.com
๐ +86 15630072814 ยท +86 13293070568 | ๐ MonโSun 09:00โ17:00
โญ What Our Customers Say
Lars Eriksen
Procurement Lead, Nordic Construct AS (Norway)
โWe switched to BOEN's 4 inch concrete screws and cut our annual fastener cost by 28%. The quality is consistent โ zero failures in 6 months. Their ERP integration saved us 4h/week in data entry.โ
Megan T.
Technical Director, Midwest Agri Equipment (USA)
โBOEN provided full ICC-ES reports and load data for their 4 concrete screws โ made our engineering review seamless. Lead time was 18 days, 5 days faster than our previous supplier.โ
Santiago R.
Ops Manager, Grupo Constructor del Sur (Mexico)
โTheir 4 inch concrete screws performed flawlessly in our seismic retrofit project. The Dacromet coating passed 1,000h salt spray. We've increased our order to 50K/month.โ
Chen Wei
Supply Chain Director, China State Construction (Singapore)
โBOEN's factory-direct pricing on 4 concrete screws gave us 33% savings vs. local distributors. Compliance documentation was complete and bilingual. Highly recommended for large-scale projects.โ
โ๏ธ About the Author โ David Harrington
Senior Fastener Engineer & Industry Analyst with 14+ years in industrial fastening systems. David has written 80+ technical papers for Fastener Technology International and consulted for 12 Fortune 500 construction firms. He leads BOEN's product compliance team and regularly audits production lines in Asia, Europe, and the Americas.
๐ Trusted by Industry Leaders Across 30+ Countries
โBOEN's 4 inch concrete screws reduced our anchoring failure rate from 4.7% to 0.6%. Their technical data sheets integrated seamlessly with our ERP. We now order 80K+ pcs/month.โ
โ Marco V., Senior Procurement Manager, Fratelli Costruzioni S.p.A. (Italy)