本体为圆棒加工成型(卡箍强度：最强)
优势：可接受最低直部，体积最小化
优势：可接受最低直部，体积最小化
| Catalogue PN | Size | A | B | C |
| KF-BCS-16 | NW16 | KF-BC-16 | 10-32UNF-15.9L(6PCS) | 10-32UNF(6PCS) |
| KF-BCS-25 | NW25 | KF-BC-25 | 10-32UNF-15.9L(6PCS) | 10-32UNF(6PCS) |
| KF-BCS-40 | NW40 | KF-BC-40 | 10-32UNF-15.9L(6PCS) | 10-32UNF(6PCS) |
| KF-BCS-50 | NW50 | KF-BC-50 | 10-32UNF-15.9L(8PCS) | 10-32UNF(8PCS) |
