Gobrecht & Ulrich
100 Book Binding Screws - Stainless Steel - Matt Silver
100 Book Binding Screws - Stainless Steel - Matt Silver
| Quantity* | Discount | Price |
| min. 2 | 3 % | £19.39 GBP |
| min. 4 | 6 % | £18.79 GBP |
| min. 6 | 9 % | £18.19 GBP |
| min. 8 | 12 % | £17.59 GBP |
| min. 10 | 15 % | £16.99 GBP |
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100 Book Binding Screws - Stainless Steel - Matt Silver
Stainless steel book binding screws with a light matt finish are perfect for all projects where durability is extra important. The book screws are suitable for use in bookbinding, scrapbooking, craft projects, presentation folders, sample folders, menus, sample swatches, photo albums and much more.
Apart from book binding, stainless steel book screws can also be used as screw rivets for leather and textile projects (e.g. belts, knife sheaths, bags made of heavy fabric). Stainless steel book screws are also particularly suitable for leashes and dog harnesses.
The book screws, consisting of screw and post, can be tightened easily by hand or with a screwdriver.
Stainless Steel Book Binding Screws at a glance
- Stainless steel book binding screws
- Head diameter: 10 mm
- Shank diameter: 5 mm
- Different heights available
- Screw (S4) slotted and post (M4)
Book Binding Screw Size Chart
A binding screw's length is the post height between the two heads — in other words, the maximum total thickness it can hold. That can be paper, greyboard, leather or any mix of them. Use the chart below to find the right length for what you're binding.
Each sheet of paper has two pages — a front and a back — so a 100-page document printed double-sided is 50 sheets. Work out your size in three steps: measure your paper stack (80 gsm paper is roughly 0.1 mm a sheet, so 50 sheets ≈ 5 mm), add both covers (2 mm greyboard each side adds 4 mm), then round up to the next length. If you only know the page count, our Spine Width Calculator will estimate it for you.
| Screw Length |
Approx. Sheet Capacity (80 gsm paper / 1 sheet ≈ 0.1 mm) |
With Covers (2 mm board each side) |
Best for |
|---|---|---|---|
| 5 mm | 50 sheets / 100 pages | 10 sheets | Sketchbooks, recipe books, leather bags, leather notebooks |
| 7 mm | 70 sheets / 140 pages | 30 sheets | Craft journals, wedding albums, leather belts and pet collars |
| 10 mm | 100 sheets / 200 pages | 60 sheets | Photo books, scrapbooks, thicker leather covers |
Note: The sheet capacities and "best for" recommendations are approximate and can vary based on paper thickness and binding style. Always test with your specific materials to ensure a perfect fit.
Need more than 10 mm? Screws of 7 mm and longer take a 10 mm extension, and screws of 10 mm and longer take a 5 mm extension. Stack them to build almost any capacity.
Specifications
- Available lengths: 5mm, 7mm, 10mm
- Maximum stack thickness: 10 mm (100 sheets of 80 gsm paper)
- Reusable: yes — unscrew and re-bind as often as you like
Common questions
How do I convert a page count into a screw length?
How do I convert a page count into a screw length?
Every sheet has two pages, so a 100-page double-sided document is 50 sheets. At 80 gsm that is about 5 mm of paper. Add your covers, then round up. Our Spine Width Calculator does the arithmetic if you only know the page count and paper weight.
My paper isn't 80 gsm. How do I adjust?
My paper isn't 80 gsm. How do I adjust?
Gsm measures weight, not thickness. A bulky uncoated paper can be noticeably thicker than a coated sheet of the same gsm, so treat these as a starting point: 80 gsm ≈ 0.10 mm, 100 gsm ≈ 0.13 mm, 120 gsm ≈ 0.15 mm, 160 gsm ≈ 0.20 mm and 300 gsm card ≈ 0.35 mm. To be sure, stack 20 sheets, measure the stack with a caliper and divide by 20.
Should I choose the exact length or go up a size?
Should I choose the exact length or go up a size?
Go up. A post filled to its exact capacity binds tightly and the pages won't turn cleanly — aim to fill about 90% of the post. If you are between two lengths, the longer one still closes properly on a thinner stack; you'll just see a little more of the post.
Can I take the binding apart again?
Can I take the binding apart again?
Yes. Screw-post binding is fully reversible: unscrew the head, add or remove sheets, screw it back. That is why it suits portfolios, swatch books and anything that gets updated.
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