Slough had the better of the opening with Andy Ballard firing over from outside the box and Dave King having to be at full stretch to push a looping Ian Hodges header away. Aaron Steele was perfectly positioned at the other end after Dave Hunt contested an aerial ball with Clark Masters and the ball dropped to Ross Pickett but his effort was blocked on the line by Steele.
Gareth McCleary showed some quick feet to bamboozle two Hendon defenders on the left and fed the ball in to Hodges. The strikers header went over King, but off the top of the bar and out.
The second half though belonged to the hosts. Masters was called into action far too often than manager Eddie Denton would have been comfortable with and the stopper made fine saves from Andy Cook, Marc Leach direct from a free kick and Iain Duncan after the full back had been played clean through.
Somehow, Slough took the lead. Despite having been pushed back for the first twenty five minutes of the half, a long ball forward from Masters was flicked on by Hodges and then volleyed in on the turn by McCleary with a wonderful finish.
The goal didn't stop the home side pressing forwards and Slough remained pinned in. Charlie Mapes saw an effort headed over by Mark Avery.
The home side got their deserved equaliser with a minute left. A ball over from the left was headed back across goal by Pickett and Dave Hunt was on hand to beat Leon Woodruffe to the ball and he headed home for the least the home side deserved.
Hendon Line up
Dave King, Michael Barima, Iain Duncan, James Parker, Mark Cooper, Marc Leach, Dave Hunt, Charlie Mapes, Ross Pickett, Blaise O'Brien, Andy Cook. Subs: Adilson Lopes, Lee O'Leary (for Pickett), James Burgess, Chike Nnatunya, Danny Julienne.