Interlocking Threshold and Hook Strip Part Number Cross-Reference
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Different makers use different part numbers for the same traditional profiles. Here is what Classic Door carries in each profile type. Dimensions vary slightly by maker, so match the profile and size to your door, and if you are unsure write "verify my order" in the order notes.
| If you're looking for | Profile | Classic Door part |
|---|---|---|
| 32B hook strip (Dorbin, Kilian), 61B (Pemko), 21B (Legacy) | Bronze J-hook strip for the door bottom, about 7/8" wide | Interlocking Bronze J-Hook Strip |
| 110B (Pemko); 3-1/2" x 5/8" interlocking threshold | Interlocking bronze threshold, about 3-1/2" x 5/8" | Standard Interlocking Bronze Threshold Kit |
| Water-return interlocking threshold (e.g., Pemko 145B type) | Interlocking bronze threshold with water return, about 3-1/2" x 7/8" | Water-Return Interlocking Threshold Kit |
| 170B / 172B (Pemko); 4" or 6" x 1/2" saddle | Bronze saddle threshold, 1/2" tall | Bronze Saddle Thresholds (4", 6", 7") |
| 25B spring bronze (Dorbin); B70 spring weatherstrip (Pemko) | Single-leaf spring bronze | Spring bronze 100 ft rolls or one-door kit |
| 16B / 16AB door and casement interlock | Interlocking L-strip for sides and head | Interlocking Bronze L-Strip |
How to confirm the fit
- Measure the threshold width and height, and the hook projection on the door bottom.
- Photograph the end of the old threshold and hook strip.
- Replacement hooks must line up with the existing threshold profile. Can I replace only the J-hook?
Need a size or profile not listed? We can source most traditional interlocking profiles. Send the part number and photos.
Common questions
What replaces a 32B hook strip?
A bronze J-hook strip for the door bottom, about 7/8 inch wide. Pemko 61B and Legacy 21B are the same profile type.
How do I confirm an interlocking threshold fits?
Measure the threshold width and height and the hook projection, photograph the end of the old threshold and hook strip, and make sure the new hook lines up with the threshold profile.
Want it done for you?
Classic Door installs weatherstripping and bronze thresholds on historic doors across New England. Anywhere else, send photos of the full opening, the door edge and the sill and we will tell you what you have and what to order. Not sure you picked the right part? Write "verify my order" in the order notes and we will check it before it ships.