Reply to thread

Help Support UKworkshop.co.uk:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message

If your builder was using the correct fixings, it shouldnt happen..... the screw in the attached screenshot has a section of shank near the head that is smooth. This is to allow the board to be pulled down tight because the threaded section has passed through the board and the head closes the gap.
They are often sized on the boxes stating something along the lines of 70/40, indicating total length of 70mm, threaded section 40mm

Im not aiming this at you Colin, just posting up for info for others:
Before initial screwing, you can put your feet / weight over the area to be secured and then put the screw in, then move along to the next one.
If you have fully threaded shanks, you screw the fixing in, back it out and then drive it back in, this usually closes up any gaps created by the screw having to bite into the joists whilst it was threaded into the board

<blockquote data-quote="baldkev" data-source="post: 1639361" data-attributes="member: 33254">If your builder was using the correct fixings,&nbsp; it shouldnt happen..... the screw in the attached screenshot has a section of shank near the head that is smooth. This is to allow the board to be pulled down tight because the threaded section has passed through the board and the head closes the gap.They are often sized on the boxes stating something along the lines of 70/40, indicating total length of 70mm, threaded section 40mmIm not aiming this at you Colin, just posting up for info for others:Before initial screwing, you can put your feet / weight over the area to be secured and then put the screw in, then move along to the next one.If you have fully threaded shanks, you screw the fixing in, back it out and then drive it back in, this usually closes up any gaps created by the screw having to bite into the joists whilst it was threaded into the board<img class="smilie smilie--emoji" loading="lazy" alt="👍" title="👍" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" /></blockquote>

[QUOTE="baldkev, post: 1639361, member: 33254"] If your builder was using the correct fixings, it shouldnt happen..... the screw in the attached screenshot has a section of shank near the head that is smooth. This is to allow the board to be pulled down tight because the threaded section has passed through the board and the head closes the gap. They are often sized on the boxes stating something along the lines of 70/40, indicating total length of 70mm, threaded section 40mm Im not aiming this at you Colin, just posting up for info for others: Before initial screwing, you can put your feet / weight over the area to be secured and then put the screw in, then move along to the next one. If you have fully threaded shanks, you screw the fixing in, back it out and then drive it back in, this usually closes up any gaps created by the screw having to bite into the joists whilst it was threaded into the board👍 [/QUOTE]

Verification