In-form Menai Bridge made it five straight wins and eight matches unbeaten in all competitions after hitting visitors Llanfairfechan for six.
The Tigers also reached 50 goals for the season in just 10 league and cup games with this evening’s caning of fellow tier 4 opposition.
Callum Davidson and Craig Roberts supplied first-half goals for the hosts, Jamie Ryan Jones and Sion Hogan providing the assists.
In the second half, Roberts made it a double before Callum Graves put away a hat-trick, scoring on 67, 73 and 90+3 minutes.
A night of disappointment for the hosts as a dangerous Gresford made it five wins in a row and triumphed at Nantporth for the second time this term, having beaten 1876 3-0 away in the Nathaniel MG Cup in August.
The on-fire Haci Ozlu scored the only first-half goal of tonight’s JD Cymru North tussle when he put the Colliers ahead in the 28th minute.
Ozlu turned provider when he set up Toby Gallagher-Keenan to make it 2-0 to the Wrexham side two minutes into the second half.
Corrig McGonigle halved the deficit with his 11th goal of the season for Bangor on 50 minutes, but the equaliser would not come for the hosts.
Athletic clinched the points when Sam Spridgeon made it 3-1 in the 89th minute.
Mountain sealed the spoils with three second-half goals after trailing at the interval to a 44th minute Ryan Pearce strike.
Two minutes into the second half, Ben Burrows made it 1-1, but after substitute Wayne Edwards missed an 82nd minute penalty for the hosts, their hopes of a victory took a blow.
Undeterred, in the 89th minute Henley Dowridge put Flint 2-1 up and Edwards made up for his earlier blip when he made it 3-1 in overtime.
Archie Jones was a hat-trick hero as Saints eventually ran out comfortable winners at Cae Bob Parry.
Jones scored on 13, 53 and 74 minutes for the visitors, with Lewis Sealey also finding the net on the hour.
Tomos Williams hit back for Llangefni, who were level at 1-1 come the break.
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