# K874669: Ace Bone Screw Nut

- Pathway: 510(k) (Traditional)
- Applicant: Buckman Co., Inc.
- Decided: Dec 11, 1987 after 28 days
- Product code: HTN (Washer, Bolt Nut)
- Device class: 2
- Regulation: 21 CFR 888.3030
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
137 later devices descend from it; 1 cites it directly.
1 of 138 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K983265: Depuy Ace Composite Locking Nut (1998), 136 descendants of its own
- K112885: Zimmer Plates and Screws System Screws Only (2011), 135 descendants of its own
- K143039: CrossRoads Screw System (2015), 79 descendants of its own
- K162825: CAPTIVATE™ Compression Screws (2017), 74 descendants of its own
- K171651: Excelsius GPS (2017), 69 descendants of its own

Source page: https://510kreport.com/device/K874669
Methodology: https://510kreport.com/methodology