You may be thinking of the "Knights of St. Andrew," (
http://knightsofstandrew.org/)... It varies a little from orient to orient, but locally the KSA is an honorary organization of 32nd degree, black-hat Scottish Rite Masons, who are dedicated to work and service projects within their respective valleys. Within our orient, membership is restricted to no more than 32 active members, who have been active within the valley for at least one year. Like SR honors, you can't ask to join, but you're nominated in secret by your peers. Upon election, you serve one full year as a "squire" before you can be elevated to full knighthood, with full voting rights. Members are distinguished by wearing a black glengarry cap instead of the regular SR cap, some chapters will wear a tartan sash or badge of some sort. Much of the legend and ritual are derived from the 29th degree, and our chapter puts on the 29th at each reunion. Good little group, essentially the valley's "SWAT team" for various and sundry service projects.
Tom
KSA, Valley of Little Rock, Orient of Arkansas