The Huwaytat dwelt in southern Transjordan, headed by Awda Abu Tayy. They assisted the Hashemites during the Arab Revolt but then co-operated with Ibn Saud and became Ikhwan.

Along the Hijaz-Transjordan frontier lived other tribes, often crossing from one state into the other. The Sharaat often raided into Transjordan in the late 1920s. The Billi followed suit, finding refuge in Transjordan during the famine in the Hijaz in 1932. A section of this tribe, led by Abdul-Hamid bin Rifada, was the pivotal force in the anti-Saudi plot, launched in May 1932. The Bani Atiyya resided in the northern Hijaz, but sections of them dwelt in Karak, deep in Transjordan. They often changed sides between Ibn Saud and Abdullah and were a constant problem for both sides along Wadi Sirhan, on the north-eastern side of the Saudi-Transjordan border.