Ombeni Ruhanduka scored twice in a couple of minutes as Bridlington Town put together three wins in a row for the first time this season.
The striker put Town 2-0 up inside a quarter-of-an-hour, and although The Seasiders hit the woodwork four times during the game, they eventually made hard work of getting the three points.
He opened the scoring on 12 minutes, as Town took full advantage of a poor Thackley pass inside their own half. Tom Fleming crossed from the left and leading scorer Duka was unmarked and tapped in from close range.
The lead was doubled almost immediately. Eddy Birch hit the bar from 25 yards and Duka prodded the rebound over the line.
Thackley looked shell-shocked and it took 26 minutes before Town keeper James Hitchcock was called into action, gathering a defelected cross.
A brilliant cross from Nathan White was met by a firm header from Fleming, but his attempt bounced back off the post and Kris Hargreaves scrambled the ball the safety.
Hitchcock comfortably saved low shots by Mike Garrod and James Sutcliffe, while Duka went close to completing his hat-trick but Ed Hall fell on his line to keep out another chance created by Fleming.
The striker could smell a hat-trick and tried his luck from the edge of the area, but it curled just over the bar.
Town ensured they had a two-goal lead at the the break thanks to a great block by Chris Jenkinson on the six-yard line and a fine one-handed save by Hitchcock to deny Garrod’s firece strike.
The second half almost got off to the perfect start when Alex Knaggs met Shaun Day’s corner but his header was cleared off the line by a combination of Hall and his defenders.
Then, Thackley got themselves back into the game. 11’s crossfrom the left looked innocuous but Hitchcock spilled it and Garrod took full advantage and bundled home.
Sub Tom Dugdale’s first touch was a whipped free kick which just bounced past the far post, and suddenly a draw looked a real possibility.
But Bridlington weathered the initial storm and went close themselves.
Chris Adams produced a lovely turn in the Thackley area but his shot nicked off a defender and hit the side netting.
Then Seasiders sub Jarrod Smalley took centre stage. Firstly, a brilliant shot from the corner of the penalty box left Hall watching in admiration, but bounced back off the post. Adams should have benefited from the rebound, but hit Hall when it was easier to score.
Smalley smacked the woodwork again minutes later, this time from even further out, meaning there was still a risk Thackley could snatch an unlikely point.
But when Dugdale’s effort in injury time drifted wide, Town were able to celebrate a win which lifted them to ninth in the NCEL table.