3″ x 4.2mm straight fluted galvanized concrete steel nails directly from factory

HEBEI FIVE-STAR METAL has a manufacturing history of steel nails for 20 years, focusing on providing all kinds of high-quality steel nails and steel nails with specifications of 1 "1.5" 2.5 "3" 4 "5, monthly output of 2,000 tons. The products have passed the ISO9000 quality certification, provided with different packaging and accepted by OEM. We take every request of our guests seriously and ensure the quality of every order. Through continuous efforts, we have won the recognition and trust of overseas customers. If you need an honest and reliable long-term China partner, HEBEI FIVE-STAR METAL is your best choice!

Complete data of 3″×4.2mm steel nail (3 inches =75mm, rod diameter 4.2mm)

Remarks: This specification is divided into two categories: common nail for carpentry/Concrete Nail; Combined with your docking with Chilean customers (South American market), the two types of information are sorted together.

I. Material

Scheme 1: Ordinary woodworking round nails (most commonly used in foreign trade)

Raw material: Q195/Q235 low carbon steel wire

-Good toughness, not easy to break, suitable for wood; Low cost, South America buys mainstream materials in large quantities.

Scheme 2: Cement/concrete steel nails (hard steel nails)

Raw materials: 45#/55# high-quality carbon structural steel, and finished products are quenched.

-High hardness, which can be driven into brick walls and cement mortar layers; High hardness, low toughness, easy to break when struck hard.

II. The product features

[Low carbon steel ordinary round nail 3"×4.2mm]

1. Round flat-topped square nail cap, with even hammering force and not easy to slip.
2. The nail rod is smooth, the diamond is sharp, and the wood is smoothly driven, so it is not easy to split the wood.
3. Good toughness, and it will not break when bent at a certain angle.
4. The nail holding force is stable, which is suitable for wood structure fixation.

[Hardened cement steel nail 3"×4.2mm]

1. Integral quenching, high surface hardness and strong penetration.
2. Cement mortar, lightweight concrete and hard wood can be fastened.
3. The nail rod generally has shallow rolling patterns to improve the anchoring force.
4. Disadvantages: it is easy to break due to excessive impact, and it is not suitable for repeated bending.

III. Surface treatment

1. Polishing brightness (Bright Polish/Black Polish black polishing)
Advantages: the lowest price; Suitable for indoor dry environment
Disadvantages: no rust prevention ability, short-term rust in wet environment.
2. Galvanizing (EG cold galvanizing) is the first choice in South America.
A thin zinc layer, medium rust prevention; The most cost-effective, Chile, Peru, a large number of procurement.
3. Hot dip galvanizing (HDG)
Thick zinc layer, excellent rust prevention, suitable for outdoor and coastal wet areas; Higher prices
4. Black/blue treatment
Thin-layer antirust oil protection, mostly used for cement steel nails, indoor decoration.

IV. Export packaging

1) Wholesalers in bulk (distribution by engineering customers and importers)

-25kg/ corrugated box, with PE plastic bag inside sealed and moisture-proof;
-outer box printing mark: name, specification 3″ x 4.2mm, net weight, gross weight and country of origin MADE IN CHINA.
-The whole cabinet can be fumigated in wooden pallet with IPPC, reinforced by film winding, and protected from moisture by sea.

2) hardware store retail small package (supermarket, building materials retail store)

-1kg/0.5kg PE plastic bag or color box;
-25 packets are packed into a 25kg outer box;
-Packaging and printing instructions in Spanish, and selling them directly on the shelves

Key requirements of export packaging

Anti-rust powder/anti-rust oil is needed in plastic bags, and the container condensate is prevented from rusting by ocean shipping; The carton is reinforced with five layers of corrugated to avoid damage during loading and unloading.

V. Application fields

Ordinary 3″×4.2mm mild steel round nail

Wood structure building frame, wood square splicing
Wooden case, wooden pallet, packing box manufacturing.
Interior decoration: gypsum board, wooden keel and decorative plate are fixed.
Furniture maintenance, woodworking DIY, fence and fence making.

3″×4.2mm cement steel nail

Water and electricity installation and pipeline fastening are fixed on the wall/cement base.
Decorated wooden keel is fixed on brick wall and concrete.
Billboards and signs are fixed on cement mortar walls.