For ” Small Conveyor Chains”, numerous links can be found for coupling and attaching custom units immediately to the chains. These hyperlinks are named attachments. The following normal attachments are available.
Sorts and names of conventional attachments
normal attachments involve five varieties for single pitch chains and five kinds for double pitch chains as illustrated beneath. 
Furthermore, for single pitch chains, four sorts of wide attachments, as broad as outer plates, can be found. Regular attachments for respective chain sizes are listed within the following web page.
The way to indicate the specially arranged chains with attachments
A chain with Attachment K1s specially organized as above is indicated as follows:
CJ＋（K1 inner＋PL）×3＋3LL＋PL＋（K1 inner＋PL）×3＋3LL＋K1 outer＋（RL＋K1 outer）×2＋5LL
“CJ” stands to get a C connecting link; “K1 inner”, an inner link Attachment K1; “PL”, an outer hyperlink; “3LL”, 3 backlinks from an inner link to an inner link; “K1 outer”, an outer link Attachment K1; and “RL”, an inner link, respectively. A “＋” sign usually means “connection”, and a “×” sign implies “repeat”. (For one-side attachments such as Attachment A and Attachment SA, the place of attachment plates is on side A within the above illustration.)
Note: When attaching attachments to every even-number link, they may be attached to outer backlinks, unless of course specified.
