Concrete screws are hardened screws that tap their own thread into a pre-drilled hole in concrete, brick or block. No plug or anchor is needed, so they install fast and can be removed. The slotted hex washer head can be driven with a nut setter or a flat screwdriver, and the washer face spreads the load.
Linkworld supplies slotted hex washer head concrete screws in hardened carbon steel and stainless steel, with blue, zinc, Ruspert and other coatings. We pack in bulk cartons or in your own branded packs, and sizes can be made to your drawing or sample.
Concrete Screw Specifications
| Specification | Configuration |
|---|---|
| Product | Concrete screw, slotted hex washer head |
| Diameter | 3/16 in and 1/4 in (about 4.8 and 6.3 mm); larger metric sizes to drawing |
| Common lengths | 30 to 100 mm |
| Material | Hardened carbon steel; stainless steel |
| Coatings | Blue, zinc, Ruspert or others to specification |
| Base materials | Concrete, brick and block |
| Packing | Bulk cartons, own-brand boxes, tubs and small packs |
Other sizes and finishes can be made to drawing or sample.
Where Concrete Screws Are Used
- Light fixtures brackets, clips and conduit on concrete
- Timber to masonry battens and furring strips
- Electrical and plumbing boxes and pipe clips
- Window and door trims fixing into masonry openings
Choosing Concrete Screws
- Drill size: use the drill size the screw is designed for, or it will strip or snap.
- Length: cover the fixture plus the embedment into the masonry.
- Coating: blue or zinc for indoor use; Ruspert or stainless for outdoor and damp areas.
- Head: slotted hex for nut setters and screwdrivers; countersunk for flush fixing.
Common Purchasing Mistakes
Wrong drill size. A hole that is too big loses grip; too small and the screw can snap.
Using concrete screws in soft mortar joints. Fix into the brick or block, not the mortar.
Indoor coatings outdoors. Use Ruspert or stainless for outdoor jobs.
Mixing head styles. Slotted hex and countersunk screws should have separate codes.
What to Send with Your Enquiry
| Item | What to tell us |
|---|---|
| Size | Diameter and length |
| Head | Slotted hex washer head or other |
| Material and coating | Carbon or stainless; blue, zinc, Ruspert |
| Quantity | Quantity for each size |
| Packing | Bulk carton, own-brand box, tub or small pack |
| Destination | Destination port |
Packing and Supply for Distributors
We pack concrete screws in bulk cartons for trade distribution, or in your own branded boxes, buckets and small packs for retail. Each size can carry its own label. For customers who plan several deliveries through the year, we offer free warehouse storage and staged shipments.
Work With Linkworld
Linkworld has more than 20 years of fastener export experience and runs its own cold heading workshop. Our own QC team checks thread, hardness, head form and coating in our inspection room before every shipment. We make screws to drawing or sample, so special sizes, heads and coatings are welcome.
Frequently Asked Questions
What is a concrete screw?
It is a hardened screw that taps its own thread into a pre-drilled hole in concrete, brick or block, with no plug.
Why a slotted hex washer head?
It can be driven with a nut setter or a flat screwdriver, and the washer face spreads the load.
Can concrete screws be removed?
Yes. They can be unscrewed, which suits temporary and light fixings.
What coatings are available?
Blue, zinc, Ruspert and other coatings, plus stainless steel.
Do you make countersunk concrete screws too?
Yes. See our countersunk concrete screw page for flush-head versions.
Looking for concrete screws in your own sizes or packs?
Send the sizes, finish, quantity and packing you need through the enquiry form below, and our team will reply with the options that fit your range.
Send an Enquiry
Send a drawing, sample or clear reference photo. Add the quantity and application if available, and we can start from the information you already have.