IKEA Billy Bookcase Connecting Hardware Screws, cSeao 12-Pack M6-1.0 x 35mm Rivet Countersunk Hex Head Socket Cap Bolt and Barrel Nut for Furniture

We own both white and Birch-effect bookcases. The 35mm fit the Birch version perfectly, but are just a little too long for the white. We purchased the 30mm for the white and they work well. I don't know bookshelves of the same color are always the same thickness, or if it varies by manufacturing lot. If in doubt, I suggest measuring or ordering the 30mm.

No stars for the 35mm but 5 stars for the 30mm. This selection is too loose for the current Billy bookcases. We agree with the other poster and exchanged for the 30mm. It gives a nice snug fit. Product is fine and does the job.

M6x30mm worked perfectly for the billy bookcases

Very pleased with this item. Fits well when we put together our 4 Billy bookcases together as if they were one set of bookcase.

these worked for the ikea style bunkbeds we bought second hand that were missing some screws.

Worked really well on an IKEA Billy build out. Do note that this just doesn’t fit into the predrilled holes that come on the furniture and that you need 2 different sized drill bits to make these work. But functionality could not be better.

I agree with other reviewers here - if you have real Ikea Billys, then you want the 30mm parts, not the 35s. 35 is the total width of the two edges bolted together, and 30mm provides a snugger connection.

I just bought the 30s to connect my billy bookcases, and they seemed too short. I ordered the 35s and they seem just right.