What you need
Impact driver with the right hex shank adapter
Electric wrench for oversized sizes (10mm and up)
Always wear safety glasses
self drilling concrete screws
One tool. One pass. Done.
No bit change. No wasted motion.
Self-drilling. Self-tapping. Self-sufficient.
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Sinsun Self Drilling Concrete Screws: One-Step Fixing into Concrete
Sinsun self drilling concrete screws with integrated carbide tip. Drill and drive in one operation—no pre-drilling, no bit changes. 6mm-12mm diameters. Factory direct pricing. Request samples.
Get a Quick QouteSinsun Self Drilling Concrete Screws: The Next Evolution in Concrete Anchoring
Sinsun self-drill concrete screws permanently and temporarily hold together cracked (C25-C50) and non-cracked (C20-C60) concrete, as well as masonry, brick, and lightweight concrete. Standard concrete screws require holes drilled first. However, our self-drilling design has a built-in drill bit tip and self-tapping thread that allows you install them directly without any extra tools or steps. This is particularly critical for big industrial projects where efficiency and labor costs are top priorities
Our self-drilling concrete screws are made of high-quality stainless steel in grades 304 (A2-70) and 316 (A4-80). They can withstand tough industrial conditions like high humidity, chemical exposure, and water exposure. Each screw undergoes strict performance testing and lasts 12 to 18 years outdoors (15 years or more for 316 grade in coastal areas), which lowers maintenance and replacement costs for B2B clients. Special lengths, drives, and packaging options can take anywhere from 30 to 45 days.
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What Makes a self drilling masonry screws Different
We've been working on this balance since 2018. This is where we ended up.
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To install a standard concrete screw, you need to do two things: first, use a hammer drill and carbide bit to make a pilot hole, and then drive the screw. The threads on the screw cut into the hole that was already there.
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A self-drilling concrete screw eliminates the first step. The screw tip is made of carbide, which is the same material found in masonry drill bits. The tip drills through concrete while the threads just behind it grab onto the material when you use an impact driver or electric wrench.
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The problem is that the tip must be cut quickly enough to be useful, and the threads must engage immediately without stripping. In addition to hardening the threads so they can be cut, heat treatment must also make the shaft flexible enough to handle torque without breaking.
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| Series | Diameter | Tip Type | Material | Coating | Best Application |
| SIN-SDZ | 6.0mm - 12.0mm | YG8 Carbide | Carbon steel | Zinc / HDG | General construction, framing |
| SIN-SDS | 6.0mm - 10.0mm | YG8 Carbide | 304/316 Stainless | Passivated | Coastal, food processing |
| SIN-SDH | 8.0mm - 12.0mm | Reinforced carbide | High-carbon steel | Climatik | High-strength concrete (C50/60) |
The difference in carbide: We use YG8 grade carbide, which is 8% cobalt binder and 92% tungsten carbide. This is the same stuff that professional hammer drill bits are made of. It can handle the impact and wear of drilling into aggregate without getting dull.
drilling masonry screws of Technical Specifications
drilling masonry screws of Technical Specifications
| Diameter | Length | Drill Tip Type | Head Style | Drive | Max Fixture Thickness | Tensile Load (C20/25) | Shear Load |
| 6.0mm | 60mm | YG8 Carbide | Hex washer | T-30 | 15mm | 3.2 kN | 5.8 kN |
| 6.0mm | 80mm | YG8 Carbide | Hex washer | T-30 | 35mm | 3.8 kN | 5.8 kN |
| 6.0mm | 100mm | YG8 Carbide | Hex washer | T-30 | 55mm | 4.2 kN | 5.8 kN |
| 8.0mm | 80mm | YG8 Carbide | Hex washer | T-40 | 25mm | 5.6 kN | 9.5 kN |
| 8.0mm | 100mm | YG8 Carbide | Hex washer | T-40 | 45mm | 6.8 kN | 9.5 kN |
| 8.0mm | 120mm | YG8 Carbide | Hex washer | T-40 | 65mm | 7.5 kN | 9.5 kN |
| 8.0mm | 150mm | YG8 Carbide | Hex washer | T-40 | 95mm | 8.0 kN | 9.5 kN |
| 10.0mm | 100mm | YG8 Carbide | Hex washer | T-50 | 30mm | 9.2 kN | 14.2 kN |
| 10.0mm | 120mm | YG8 Carbide | Hex washer | T-50 | 50mm | 10.5 kN | 14.2 kN |
| 10.0mm | 150mm | YG8 Carbide | Hex washer | T-50 | 80mm | 11.8 kN | 14.2 kN |
| 10.0mm | 200mm | YG8 Carbide | Hex washer | T-50 | 130mm | 13.0 kN | 14.2 kN |
Applications: Where Self-Drilling Screws Make Sense
1. Commercial framing and drywall track
Putting steel track on concrete slabs is a job that needs to be done a lot. With regular concrete screws, you have to drill thousands of holes and then drive thousands of screws. With Sinsun self-drilling screws, your team only has to drill once.
"We built 40,000 square feet of metal framing," said a contractor in Texas. Two crews would have been needed to use standard concrete screws. One crew finished three days early with Sinsun self-drillers.
Why Sinsun: The carbide tip drills through concrete slabs without getting dull. The T-30 drive can handle a lot of torque without stripping. The hex washer head fits perfectly into the track.
2. Putting up the handrail and balustrade
The handrail brackets need to be put in the right position. When using standard anchors, you drill a hole and hope the screw lines up with the hole already made in the bracket. You can drill right through the bracket and into the concrete with self-drilling screws.
How it works：Brackets for position、Put the screw through the bracket hole.A screw makes its own hole and sits down.
No punchinis required r transfer. No alignment problems. No oversized holes.
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3. Systems for Formwork
Concrete formwork needs anchors that are easy to install and stay in place while concrete is poured.
Formwork contractors will ask for Sinsun self-drilling screws for：Tie-back uses、Kick-er add-ons、Anchors for safety rails.
The most notable thing is that one person can set it up. No need for a hammer drill. You don't need anyone to help you hold the drill while driving.
Get a Quick Qoute4. Temporary Fixings and Scaffolding
Scaffolding anchors are put in and taken out over and over again. You can take out and put back in Sinsun self-drilling screws as many times as you want without losing their holding power.
Why Sinsun? The carbide tip can be installed many times without breaking. The threads retain their shape because they cut the concrete instead of crushing it.
self drilling concrete bolts :One Step, One Tool
for installation
for installation
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Steps to Install
Put the fixture where you want it to be.
Put the screw through the fixture hole
Drive with the impact driver at moderate speed.
Stop when your head touches the fixture
That's all. No drilling with a hammer. No vacuum. No change in bits.
| Factor | Why It Matters | What We Recommend |
| Drive speed | Too fast overheats tip | Moderate speed, not full throttle |
| Perpendicular angle | Angled screws lose 30% strength | Keep 90掳 to surface |
| Depth control | Over-driving strips concrete | Stop when head seats |
| Tool power | Weak tools stall | Use 18V+ impact minimum |
| Problem | Cause | Solution |
| Screw won't advance | Concrete too hard for diameter | Switch to SDH series |
| Tip wears quickly | High aggregate content | Pre-drill a starting hole |
| Screw snaps | Excessive torque | Check tool setting |
| Spinning in hole | Wrong size for concrete | Verify diameter selection |
| Comparison Item | Sinsun | International Brands (EJOT/ITW) | Domestic Low-Cost Competitors |
| Price | 18-28% lower than international brands; 10-15% higher than low-cost competitors (with better quality) | High (35-55% brand premium) | Low, but unstable quality and short service life |
| Lead Time | 3-7 days (standard models); 10-15 days (customized); 24-hour rush order available for bulk orders | 18-35 days (import lead time + customs clearance) | 7-12 days, but 20% of orders are delayed by 3+ days |
| Drill Bit Life | 500+ drilling cycles per screw | 550+ drilling cycles (higher cost) | 200-300 drilling cycles (frequent replacement) |
| Customization | Support OEM/ODM; MOQ 10,000 pieces; custom diameter, length, head type, and packaging | Customization available; MOQ 50,000+ pieces; high customization fee | Limited customization; poor precision (tolerance ±0.2mm) |
| After-Sales Support | 24-hour technical support; 1-year quality warranty; free replacement for defective products (no minimum quantity) | 48-hour technical response; 1-year warranty; replacement requires minimum 1000 pieces | No after-sales support; no warranty; defective products not replaceable |
| Defect Rate | ≤0.02% | ≤0.02% | 0.5-1.2% |
Real Customer Feedback
"We frame about 200,000 square feet of metal studs each year. Using Sinsun self-drilling concrete screws cut our time for anchoring slabs in half. It's convenient for the crew because they don't have to switch tools. The carbide tips don't dull and last through the whole job."
"That was a bit unclear to me. Concrete screws that self-drill sounded like a fix that needed a problem solved. After that, we used them on a job with 500 anchors for a handrail. No drilling ahead of time. No dust. No walking parts. Every screw fits perfectly. I've changed my mind."
"I put safety railings on roofs of businesses. Every anchor has to hold. I trust Sinsun self-drillers because I can see them cut their own threads. I don't have to guess if the hole was drilled straight. I've used thousands and never had one break.
FAQ: Self Drilling Concrete Screws
Q: Do self-drilling concrete screws work on all types of concrete?
A: They work in regular concrete with a strength of up to C50/C60. If you need stronger concrete or concrete with very hard aggregate, we recommend our SDH series with reinforced carbide. Always try it out on the material you want to use first.
Q: Can I use them in bricks or blocks?
A: Yes, but hollow block needs to be used with solid material. When working with hollow masonry, make sure the screw goes into solid web or use masonry screws that are made for this purpose.
Q: How far do they drill?
A: The screw drills as deep as you drive it. The tip is made to drill a little bit ahead of the threads, so the threads will automatically fit all the way in.
Q: What if I hit rebar?
A: The carbide tip won't be able to cut through rebar. Stop if you hit steel. Try again after moving at least two inches away. This applies to all types of concrete anchors, not just those that drill themselves.
Q: Can I take them off and use them again?
A: Yes, use an impact driver to unscrew it. The threads are still there and can be put back on many times. The carbide tip can be put back on again unless it gets broken the first time it's used.
Q: How much torque should I use?
A: There isn't a certain torque value. Just stop when the head touches the fixture. Over-torquing breaks the threads in the concrete. The highest torque values we recommend are not goals for installation, but safety limits.
Q: Do I have to clean the hole?
A: No. The thread design on the screw clears dust as it turns. One benefit of this over regular concrete screws is that they don't need to be cleaned out as thoroughly.
Q: What kind of drill/driver do I need?
A: An 18V impact driver works well for 6mm and 8mm. Use a 1/2" electric wrench or a heavy-duty impact for 10mm and up. Cordless tools need enough power; weak tools will stop working.
Q: How close to the edges can I put it?
A: The minimum distance from the edge is about 10 times the diameter (60mm for a 6mm screw). For cracked concrete or moving loads, make the edge distance 50% longer.
Q: Can I get samples?
A: Yes. Contact our sales team for sample requests. We'll send up to 5 sizes so you can test in your specific application.
Q: What's your lead time?
A: Stock sizes ship within 15 days. Custom production (special lengths, coatings, packaging) requires 30-45 days depending on quantity.
If you want to know more about our self-drilled concrete screws, including detailed technical specs, custom quotes, free samples, or if you have any other questions, contact our B2B sales team. We answer all questions within 24 hours and offer one-to-one technical help with your projects.
We look forward to working with you to find reliable, efficient self-drilling concrete screw solutions for your business projects.
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Emailinfo@hbsinsun.com
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Call us at+86-13622187012
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Websitewww.sinsunfastener.com
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