Brass Chicago interscrews post and screw set 40mm (pack of 6)

Brass Chicago interscrews post and screw set 40mm (pack of 6)

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  • genuine brass
  • knurled head
  • archival
  • made in New Zealand

This is a 6-pack of brass 40mm Chicago interscrews 32IS40-6 containing 6 posts and 6 screws with a 40mm post length.

Brass Chicago interscrews (also referred to as screw posts, book screws or ledger screws) are used in making post-bound photo albums and books, menus, folios, swatchbooks, etc.

These high quality interscrews have knurled heads which can be easily tightened and loosened by hand for convenience and to avoid burring.


Post length 40mm. Post diameter 5mm. Head diameter 10mm. Thread M4.


Our brass interscrews are available in 2mm, then 5mm up to 80mm lengths in 5mm increments, and can be lengthened further with the use of extension posts

Extension posts are available in 7mm, 10mm, 15mm, 20mm, 30mm, 40mm, 50mm and 60mm lengths. These can be used to extend the interscrews, for instance if extra pages are added to an album.

Interscrews in 2mm up to 20mm lengths feature one-piece posts. These are complete sets, including both the post (the body, or female end) and the screw (the head, or male end). Lengths 25mm and longer feature two-piece posts made up using short brass post-and-screws with zinc-coated steel extensions.

Our interscrews are also available in black and silver finishes.


Interscrew components at The Photo Album Shop

Variables such as length, depth, diameter, thread length and pitch mean that it is UNLIKELY that our interscrews or extensions will fit into existing sets from different manufacturers. Instead of trying to match existing sets, we recommend that you consider replacing your existing interscrews entirely. This way you will be able to add extensions or obtain replacements later if required.