Hook and eyes can be used alone or with other types of fasteners such as zippers. They have a range of sizes from 0 (for light fabrics) to 4 (for heavy weight fabrics).
Most hooks come with loop eyes. I get packs of them in both a black colour and a “metal” colour. You can also get straight eyes with hooks. Which type you use will depend on where the fasteners is placed on the garment.
Using Hooks and Eyes for Overlapping Edges.
If it is a waistband, you would usually use a straight eye. Most waistbands require either two regular hook and eyes or one heavy-duty hook and eye.
Sew the hook to the upper edge of the garment on the inside, usually about 3mm (1/8″) from the edge. Make a few tack stitches through the holes in the hook, then sew across the end under the hook to keep that part close to the garment. Don’t let the stitches for the hook show on the outside of the garment.
Mark the place for the eye by closing the zipper (or other fastening). Then sew the eye to the outside of the underlap.
Using Hook and Eyes for Edges that Meet.
For this type of closure you would usually use a standard hook and loop eye.
Sew the hook to the inside of the upper edge of the garment. Make a few tack stitches through the holes in the hook then sew across the end under the curved part of the hook. Make sure your stitches don’t show through the garment.
Sew the eye opposite the hook extending it partly over the edge of the garment. Use a couple of stitches along the sides of the loop to hold it fast.
Thread loops can be used instead of metal or plastic loops or eyes to fasten the eyes. If you are careful they can add a professional touch to a garment. However thread loops are not as strong, so wouldn’t be used in areas that take a lot of strain such as a waist band.
Thread loops can be worked on to a fold of fabric. Strands of thread form the loops which are finished by placing blanket or buttonhole stitch over the loops.
Use a buttonhole twist or heavy thread which is thicker than a normal sewing thread.
No Sew Hooks and Eyes
This type of waistband hook and eye are applied before the waistband is finished. Following the manufacturers instructions, you just hammer or clamp them on in the proper place. Make sure the material you are attaching them to is a firmly woven fabric, often reinforced with interfacing.