Review on Zipbolt Angled Slipfix Handrail To Newel Post Connector — 13.960 Angled Slipfix Staircase Railbolt For Upper Connection Acute Angle Post Fastener, Easy Installation For Residential And Commercial Use — 1 Double Pack by Kevin Woods

In theory these are great! In reality no so much. Came across these on youtube and ordered them here on amazon.Measuring and drilling was simple. Although i would not follow the directions exactly. I would honestly move the 1" hole 1/4" closer to the end of the rail. The angled bolt and hook plate design is fantastic and works extremely well. The gear driven nut it where this item FAILS. The gear driven nut is HORRIBLE. It is a total pain to get caught, it binds then trying to tighten and i was afraid to tighten it and then not be able to remove it again. I ended up throwing the nuts in the garbage. Being in a rush to finish up the railing for the holidays, i checked the threaded side with a thread gauge and calipers and looked to be a M6x0.75 thread. Got a couple nuts at fastenal. Surprise they didnt fit. Chased the threads with a M6x0.75 die and they spun right on. Used a washer and standard nut on the angled bolt and it works perfect! I wish they would sell just the angled bolt and hook plate s and throw the geared nuts in the trash!