284Z is a yellow gold metallic thread from DMC that comes on a large spool. When many of the older designs were created, this was the most widely available gold metallic thread. Some craft stores, needlework shops, and online shops still carry it.
However, we now have many more metallic choices. Mailyn's newer designs tend to call for Rainbow Gallery Petite Treasure Braids. These are much easier to use. The 284Z probably matches PB01 most closely. Use two strands over two threads on 28 count or 32 count fabric or over one fabric square on 14 count or 16 count Aida. The Rainbow Gallery threads are available through needlework shops and online. If you search on Google for 'rainbow gallery treasure' you will find several sources.
Another option is to use Kreinik braid in either the #4 or #8 size. #4 in thinner. The 028 would be appropriate for 284Z. Many of the others would also work, and colors ending in HL will be shinier. You probably want to use two strands of #4 or one strand of #8. If you don't like the effect, try more or fewer strands.
For a few designs, Marilyn uses 282Z which is a light gold or 281Z
which is a silver.
Light gold 282Z is like PB03 Petite Treasure Braid or Kreinik 002.
Silver 281Z is like PB04 Petite Treasure Braid or Kreinik 001.
You might also consider DMC's stranded metallic threads. These are often located above or below the regular floss. DMC has changed their names and numbers over the years.
Yellow gold DMC 284Z | DMC 5284 | Precious metal Effects E3852 | Rainbow Gallery PB01 | Kreinik 028 |
Light gold DMC 282Z | DMC 5282 | Precious metal Effects E3821 | Rainbow Gallery PB03 | Kreinik 002 |
Silver DMC 281Z | DMC 5283 | Precious metal Effects E168 | Rainbow Gallery PB04 | Kreinik 001 |
There are so many metallic thread choices today. We hope you find one that pleases you.