
There are several ways to make a cross from concrete nails. One method involves using a jig to weld four small crosses together to form a Jerusalem cross. Another approach is to use glue dots or super glue to bind the nails together, creating a cross necklace. Alternatively, you can repurpose old nails into a rustic cross by winding copper wire around them. Lastly, you can create a concrete memorial cross by mixing and moulding your own concrete, allowing for customisation with various decorative elements.
| Characteristics | Values |
|---|---|
| Type of Cross | Jerusalem Cross |
| Number of Crosses | 5 (4 small and 1 large) |
| Materials | Concrete nails, flux-core wire, holding jigs, brazing rod, MAPP gas torch, wire wheel, spray shellac, nut, wire, wooden block, angle iron, strap iron, aluminium, glue dots, super glue, sealant, copper wire, cut masonry nails, mineral spirits, metal degreaser, etc. |
| Techniques/Tools | Welding, brazing, drilling, jig creation, wire winding, gluing, etc. |
| Time | Variable (a few minutes to a couple of days) |
| Difficulty | Easy to Intermediate |
| Purpose | Religious/Spiritual Symbolism, Decoration, Gift, Pendant, Necklace, Keychain, Ornament, etc. |
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What You'll Learn
- Using concrete nails and a hammer to attach items to concrete
- Making a cross necklace out of nails
- Creating a Jerusalem Cross with four small crosses and one larger cross
- Using glue dots to hold nails together when making a cross necklace
- Making a concrete memorial cross by pouring concrete into a mould

Using concrete nails and a hammer to attach items to concrete
Concrete nails are ideal for hanging heavy items such as large wall hangings. They are stronger than masonry nails and are difficult to remove. When using concrete nails and a hammer to attach items to concrete, there are a few steps to follow. Firstly, you need to use pressure-treated wood to avoid the wood rotting over time due to moisture. Before hammering the nails into concrete, you must pre-drill pilot holes in the concrete that are the same diameter or slightly smaller than the nails you will be using. Use a masonry bit and a slow drill speed, taking breaks to let the bit cool down. Drilling will be quicker with a hammer drill. Make sure to vacuum away any dust from the holes regularly during the drilling process, as concrete dust can clog the hole and prevent the nail from penetrating.
Next, insert the concrete nails into the pilot holes and use a framing hammer to drive them flush to the surface of the wood. If the nail bends, pull it out and use another nail. If the nail stops before reaching the surface, remove it and drill deeper or widen the hole. You can reinforce the bond between the wood and concrete by applying construction adhesive along the bottom of the wood before positioning it and hammering in the nails.
An alternative method is to use a powder-actuated nailer, which does not require pre-drilled pilot holes. However, drilling pilot holes can help guide the nails and strengthen the joint.
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Making a cross necklace out of nails
Materials:
You will need cut masonry nails, which are typically available in 2-inch sizes. You can purchase these at your local hardware store or a home improvement store like Home Depot or Lowe's. If the nails have an oily residue, use mineral spirits or a metal degreaser to clean them. Additionally, you will need glue dots, a pretty chain or leather cord, and some rope.
Steps:
- Use glue dots to hold the nails together: Place the glue dots between the nails to keep them in place. The glue dots should be large enough to provide a strong hold. They are tacky and will allow you to adjust the nails as needed without creating unwanted spaces between them, unlike hot glue.
- Secure with rope: Wrap the rope around the centre of the cross to further secure the nails together. This will ensure that the cross holds its shape.
- Add a chain or cord: Finally, attach a pretty chain or a leather cord to the cross to turn it into a necklace.
Additional Tips:
If you want a stronger bond between the nails, you can use super glue or a sealant. Additionally, you can follow the example of a similar project that involves using copper wire to create a pendant. Make a small loop with the copper wire and place it at the top of two long nails. Carefully wind the wire around the nails, including the tail bit of the loop. This will result in a pendant that can be worn with a chain or cord.
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Creating a Jerusalem Cross with four small crosses and one larger cross
A Jerusalem cross consists of a large central cross of equal-length arms and four smaller Greek crosses, one in each quadrant. To create a Jerusalem cross with concrete nails, you will need concrete nails, a welder, holding jigs, brazing rods, a MAPP gas torch, a wire wheel, spray shellac, and a wooden block.
Firstly, cut a wooden square that is equal to the length of the nails. The standard size of concrete nails is 2 1/2 inches (6.35 cm), so the wooden block should be slightly larger, by about 1/32 to 1/16 of an inch on each side.
Next, create a jig to hold the nails in place. The jig should be made of four pieces of 1/2 inch angle iron welded together to fit closely around the wooden block. Small tabs of 1/8 inch steel should be welded inside the jig to hold the nails in place.
To create the four small crosses, clamp four nails together in the jig and weld them together at their tips. Repeat this process three more times so that you have four small welded crosses.
To create the large center cross, use another jig made of 1/8 x 1/2 inch strap iron. The main piece should be 4 1/2 inches long, with two wings 2 1/8 inch long welded to it at 90-degree angles to form an "X". Clamp four nails in this jig and weld them together at their tips.
Finally, assemble the Jerusalem cross by welding the four small crosses to the large center cross. You can add a loop made from a small nut welded behind the nails and some bent wire for hanging on the wall.
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Using glue dots to hold nails together when making a cross necklace
To make a cross necklace from concrete nails, you can use glue dots to hold the nails together. This craft idea is perfect for those who celebrate the resurrection of Christ and carry that meaning with them.
To make the cross, you will need four 2-inch masonry cut nails. Place two of the nails opposite each other, ensuring that they are not completely aligned at the ends to define the shape of the cross better. Use glue dots to secure them in place, and then repeat this step with another pair of nails to form an "X" shape. The glue dots will hold the nails together, allowing you to adjust their positioning as needed.
Glue dots are advantageous in this craft because they are tacky and immediately hold objects together without the need for drying time. They also conform to the shape of the nails, allowing you to squeeze them tightly to minimize gaps. If you prefer a stronger bond, you can consider using super glue or a sealant.
Once the nails are secured with glue dots, you can wrap a leather or hemp cord around the middle of the cross. Form a loop by wrapping the cord diagonally around the centre of the cross, and then continue wrapping and alternating the direction of the cord. Finally, tie a knot at the back of the cross to secure the cord. You can also use jewellery wire to wrap and secure the cord to the top of the nails for added stability.
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Making a concrete memorial cross by pouring concrete into a mould
Next, prepare your mould by spraying the inside with cooking spray. Rub the inside of the mould with paper towels to distribute the spray evenly and to soak up any excess. Pour the concrete mixture into your mould and allow it to harden for about half of the recommended time. Then, use popsicle sticks to etch a design of your choice into the surface of the concrete. You can also add mosaic pieces, glass, beads, or other decorative embeds at this point if you prefer.
After decorating your cross, allow it to dry completely. Place it on a padded surface and turn the mould over. Pull up on the edges of the mould, and your concrete cross should come out easily.
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Frequently asked questions
You can make a Jerusalem Cross by welding four small crosses and one larger cross using concrete nails. You can also make a cross necklace or pendant by sticking the nails together using glue dots or super glue and wrapping them with rope.
You will need concrete nails, a flux-core wire feed welder, holding jigs, brazing rods, a MAPP gas torch, a wire wheel, spray shellac, glue dots or super glue, and rope.
It depends on the method of construction. A Jerusalem Cross made of welded concrete nails may take longer to make than a cross necklace made of glued concrete nails. The latter can be completed in a few minutes.











































