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Factory Direct Sale Hex Flange Head Concrete Screw With Diamond

Product Details

Model NO. : Concrete Screw/Masonry Screw

SIZE : M6-M12,Customized

STANDARD : ASTM F1940

MATERIAL : Carbon Steel

TAIL TYPE : Diamond

FINISH : Ruspert Blue,Stainless Steel,Customized

PRICE : Negotiable Based On Quantity

Packaging & Shipping

PACKAGING : Bulk Pack | Small Boxed

PRICE TERMS : Fob/CFR/CIF/DDP/DAP

Delivery Time : Orders under 5,000 pcs ship within 5–7 days.

Description Specification Related Products Form

Description

Factory-direct sales of customized hex flange-head concrete screws, used in construction, renovation, and other applications; OEM/ODM services available.

Key Features & Advantages:

1.Rust-X Blue High Corrosion-Resistant Coating: Nano-ceramic blue coating with ≥1000 hours salt spray resistance, free of hydrogen embrittlement and heavy metals, offers corrosion resistance 10x higher than zinc plating, ideal for outdoor environments.

2.Hi-Low Thread Structure: High threads cut concrete/masonry fibers; low threads form locking engagement, reducing driving resistance and improving anchoring strength.

3.Diamond Point: T-point tip designed for direct concrete penetration without pre-drilling, completing fastening in one step.

4.Hex Flange + Slotted Drive: Standard hex head works with wrenches/power tools; flange increases bearing area; slotted drive allows versatile installation.

5.Hydrogen-Embrittlement-Free Safety Design: Rust-X process removes hydrogen embrittlement risk, preventing delayed fracture in high-stress concrete connections.

6.Full Hi-Low Thread Shank: Continuous threads ensure deep concrete engagement, offering excellent pull-out and torsion resistance for heavy-load applications.

7.Anti-Loosening Serrrated Flange: Serrated flange grips substrate during tightening, providing mechanical anti-loosening and resisting vibration and impact.

8.Multi-Substrate Compatibility: Suitable for concrete, solid brick, lime sand brick, stone, compatible with wood and metal parts for versatility.

Common Applications:

1.Building Decoration Engineering: Fixing steel keels, drywall, wood joists, ceilings, and partitions to concrete

2.Piping & HVAC Systems: Installing duct supports for fire protection, water supply, and air conditioning to walls/floors

3.Equipment Installation: Securing equipment, electrical enclosures, distribution boxes, and surveillance brackets

4.Curtain Wall & Exterior Wall Projects: Connecting wall panels, insulation boards, and keels to concrete structures

5.Outdoor & Anti-Corrosion Projects: Fixing outdoor facilities, canopies, sheds, and railings to concrete, ideal for humid environments

6.Renovation & Retrofit Projects: Old house renovation, retrofits, and secondary fixing to concrete walls/floors

7.Other Hard Substrate Scenarios: Connecting wood, metal parts, and supports to solid brick, lime sand brick, and stone

FAQ:

Q1: Can these screws be used outdoors or in humid environments?
A1: Yes, the Rust-X blue coating ensures excellent salt spray/corrosion resistance, ideal for outdoor, humid, and coastal areas.

Q2: What differentiates Hi-Low thread from standard straight thread concrete screws?
A2: Hi-Low thread has alternating high and low threads: high threads cut fibers, low threads secure. This reduces driving torque by up to 30% and enhances pull-out force by over 40% versus standard threads, simplifying installation and boosting connection security.

Q3: Is it necessary to use additional washers with the hex flange head?
A3: No additional washers needed. The flange acts as a built-in washer for pressure distribution and crush prevention, while serrations offer mechanical anti-loosening.

Q4: Are these screws removable and reusable?
A4: Screws can be removed and reused if screw, coating, and threads remain intact. But, for structural or safety-critical uses, reuse isn’t recommended to ensure reliability.

Factory And Company Profile：

https://www.youtube.com/embed/C8RlC0lSvMs?si=YFls40RlgVIpiCMm

Factory

Why Choose Qewitco?

1. British-owned enterprise headquartered in Qingdao. Operated under British management system and international quality standards. We combine Western business integrity with competitive Asian manufacturing resources, delivering stable, transparent procurement services to global buyers.

2. Established in 2004 with over 20 years of industrial consumables & fastener experience. Long-term clients spread across Europe, North America, Southeast Asia and other global markets. Proven track record serving international distributors, manufacturers and engineering companies.

3. Multi-stage QA system implemented throughout the whole process: raw material incoming inspection → production follow-up → finished goods testing before shipment. Avoid quality risks for your bulk orders.

4. Flexible customized procurement solution. We source regular standard fasteners as well as specialized, hard-to-source non-standard items to satisfy your unique project demands.

5. Personalized account manager assigned for each partner to align with your business targets & schedules. Custom packaging available; integrated logistics solutions to simplify worldwide delivery from factory straight to your warehouse.

6. Specialized in global supply chain optimization. We integrate multi-supplier resources to simplify your purchasing process, cut sourcing costs and reduce multiple supplier communication workload.

Company Profile

QINGDAO FASTENERS CO.,LTD

Based in Qingdao, China, Qewitco is a British-owned firm with a vast global reach. Since 2004, we’ve earned a reputation as a top industrial consumables and fastener provider, serving clients across Europe, North America, Southeast Asia, and beyond.

Driven by British management and quality standards, Qewitco excels in supply chain optimization. We source top-grade products from vetted manufacturers in China, Taiwan, Malaysia, Vietnam, and Thailand, ensuring competitive pricing and reliable production.

With over 20 years of industry expertise, we offer tailored, cost-effective solutions to meet each partner’s unique needs. Our services include:

Personalized account management to align with your business goals and timelines
Multi-stage quality assurance from raw material inspection to final product testing
Flexible custom procurement for specialized or hard-to-source items
Customizable packaging and logistics solutions to streamline global delivery

For industrial sourcing in China and Southeast Asia, Qewitco is your reliable partner. Our mission is to exceed expectations by ensuring seamless delivery—from production to your warehouse. We merge Western ethics with Asian manufacturing advantages, offering unmatched value and service.