However, it was another disappointment for Blues North who were combative at forward but unable to press home that advantage behind the scrum as they went down 12-0 at Aberdare.
Williams, who is the leading scorer in this season’s competition, kicked his side into a 9-0 lead at the interval before making sure of a sixth straight victory of the campaign with his fourth in the second half.
On the back of his match-winning performance for the region’s under 18s last week, it was further confirmation that the outstanding youngster is certainly one to watch.
Blues North team manager Nigel Way said; “We are pleased with areas of our development and that, for these boys, is the most important aspect.
“However, having done so well as a squad over the past couple of years, it is disappointing that we have not enjoyed one or two better results.”