Do your concrete screws have an ETA?

Approval status depends on the product line — tell us your required approval and we confirm before quoting.

Concrete Screws

Concrete screws (screw anchors) cut their own thread in a drilled hole in concrete or masonry — no expansion, so they can be set close to edges and removed. Hex washer head type, 6 to 14 mm diameter, hardened carbon steel with zinc or zinc-nickel finish. Used for racking, handrails, temporary works and MEP supports.

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Concrete Screws we supply

Concrete Screw Anchor – representative photo

Hex Head Concrete Screw Anchor

Concrete Screws: standards, sizes and options
Product / standard	Sizes	Grades	Material	Finishes	MOQ
Manufacturer specification Concrete Screw Anchor	6, 8, 10, 12, 14 mm	Case hardened	Hardened carbon steel; Stainless (on request)	Zinc plated, Zinc-nickel	500 pcs / size

Ordering concrete screws

MOQ: 500 pcs per size (negotiable for trial orders)
Mixed sizes: Welcome in one order
Samples: Samples available — cost and lead time quoted per request
Lead time: 15–25 days for standard parts; finishes such as HDG or Dacromet add a few days
Payment: T/T 30% deposit, 70% before shipment
Shipping: FOB Ningbo / CIF / DDP on request
Packaging: Cartons on pallets, or private-label boxes and bags
Documents: Material certificate, coating thickness and salt-spray reports on request
Custom: Drawings, non-standard sizes, coatings, marking and private-label packaging

To quote quickly, please send

Standard (e.g. DIN, ISO, ASTM) or drawing number
Size × length and thread pitch
Property class / grade and material
Finish and coating thickness (or the salt-spray hours you need)
Quantity per size and annual volume
Packaging and destination port

Finishes for concrete screws

Zinc-nickel and zinc are plated on our own line in Ningbo. Other finishes are applied by specialist coaters to the relevant standard.

Finish	Applied	Notes
Zinc plated	Our own line	Clear/blue, yellow or black passivation
Zinc-nickel	Our own line	12–15 µm, clear or black passivation; 1,000 h (12 µm) to 1,440 h (15 µm) neutral salt spray

For property class 10.9 and above, choose zinc flake, or zinc-nickel with hydrogen-embrittlement relief agreed at order stage.

Row of zinc-nickel electroplating tanks — Our zinc-nickel plating line. Salt spray: 12 µm ≈ 1,000 h, 15 µm ≈ 1,440 h (neutral salt spray to first red rust). How zinc-nickel compares

How to choose

What drill bit size?: Usually the nominal screw diameter (e.g. 10 mm screw → 10 mm hole); a setting table is supplied with the quote.
Indoor or outdoor?: Zinc for dry indoor use. Zinc-nickel improves outdoor durability; for permanent exposure specify stainless.

Request a concrete screw quote

Send sizes and quantities — we reply with price, finish options and lead time within 24 hours.