I bought a coach screw for the first time with a monotaro but the screws are not out of place. There are only 2 or 3 mountains of the previous thread and there is no need to see the double thread mountain afterwards. The height of the screw thread is not uniform, but it gets thinner by about 1 mm as it goes to the root. Is not this the weak screw effectiveness? I have never seen such a bad coach screw. I'd like to post pictures. I will not buy it again.
Used for supporting and fixing the rail to the pillar of the ceiling retractable bed
On 2015-12-12 18:08:38
I am using it for attaching hardware rails to the wood of extremely powerful place We use coach bolt because it will be damaged if it is a course red It is hard to say that this is a coach bolt It is not sold even at the home center even for the general public I do not even know that there are screws for such thick woods I am really saved Thank you I will also buy