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Skybolt quarter-turn fastener studs are the removable stud half of Skybolt's CLoc, ZLoc, and ALoc panel fastening systems, used to secure engine cowlings, inspection panels, and access doors on general aviation aircraft. Manufactured in the 2000, 2500, 2600, 2700, 2800, and 4000 series, these studs are direct-fit replacements for Camloc®, Dzus®, and Airloc® equivalents.
For grip length charts, dimensional data, and full part number cross-reference, see the Skybolt Fasteners Catalog.
Need help finding the right parts? Click here for the Skybolt part number selector to find your part number.
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| Make | Model | Start S/N | End S/N | Eligibility Chart |
|---|---|---|---|---|
| Cessna 172H (T-41A) | 172H (T-41A) | S/N 17254893 – 17256512 | 17256512 | Eligibility Chart 2756 |
| Cessna 172H (T-41A) | 172H (T-41A) | S/N 17254893 – 17256512 | 17256512 | Eligibility Chart 2756 |
| Cessna 172I | 172I | S/N 17256513 – 17257161 | 17257161 | Eligibility Chart 2756 |
| Cessna 172I | 172I | S/N 17256513 – 17257161 | 17257161 | Eligibility Chart 2756 |
| Cessna 172K | 172K | S/N 17257162 – 17259223 | 17259223 | Eligibility Chart 2756 |
| Cessna 172K | 172K | S/N 17257162 – 17259223 | 17259223 | Eligibility Chart 2756 |
| Cessna 172L | 172L | S/N 17259224 – 17260758 | 17260758 | Eligibility Chart 2756 |
| Cessna 172L | 172L | S/N 17259224 – 17260758 | 17260758 | Eligibility Chart 2756 |
| Cessna 172M | 172M | S/N 17260759 – 17263458 | 17263458 | Eligibility Chart 2756 |
| Cessna 172M | 172M | S/N 17260759 – 17263458 | 17263458 | Eligibility Chart 2756 |
| Cessna 172M | 172M | S/N 17263459 – 17267584 | 17267584 | Eligibility Chart 2756 |
| Cessna 172M | 172M | S/N 17263459 – 17267584 | 17267584 | Eligibility Chart 2756 |
| Cessna 172N | 172N | S/N 17267585 – 17274009 | 17274009 | Eligibility Chart 2756 |
| Cessna 172N | 172N | S/N 17267585 – 17274009 | 17274009 | Eligibility Chart 2756 |
| Cessna 172P | 172P | S/N 17274010 – 17276654 | 17276654 | Eligibility Chart 2756 |
| Cessna 172P | 172P | S/N 17274010 – 17276654 | 17276654 | Eligibility Chart 2756 |
| Cessna 172Q | 172Q | S/N 17275869 – 17276211 | 17276211 | Eligibility Chart 2756 |
| Cessna 172Q | 172Q | S/N 17275869 – 17276211 | 17276211 | Eligibility Chart 2756 |
| Cessna 337 | 337 | S/N 337-0002 – 337-0239 | 337-0239 | Eligibility Chart 2756 |
| Cessna 337 | 337 | S/N 337-0002 – 337-0239 | 337-0239 | Eligibility Chart 2756 |
| Cessna 337A (USAF O2B) | 337A (USAF O2B) | S/N 337-0240 – 337-0525 | 337-0525 | Eligibility Chart 2756 |
| Cessna 337A (USAF O2B) | 337A (USAF O2B) | S/N 337-0240 – 337-0525 | 337-0525 | Eligibility Chart 2756 |
| Cessna 337B | 337B | S/N 337-0526 – 337-0755 | 337-0755 | Eligibility Chart 2756 |
| Cessna 337B | 337B | S/N 337-0526 – 337-0755 | 337-0755 | Eligibility Chart 2756 |
| Cessna 337C | 337C | S/N 337-0756 – 337-0978 | 337-0978 | Eligibility Chart 2756 |
| Cessna 337C | 337C | S/N 337-0756 – 337-0978 | 337-0978 | Eligibility Chart 2756 |
| Cessna 337D | 337D | S/N 337-0979 – 337-1193 | 337-1193 | Eligibility Chart 2756 |
| Cessna 337D | 337D | S/N 337-0979 – 337-1193 | 337-1193 | Eligibility Chart 2756 |
| Cessna 337E | 337E | S/N 33701194 – 33701316 | 33701316 | Eligibility Chart 2756 |
| Cessna 337E | 337E | S/N 33701194 – 33701316 | 33701316 | Eligibility Chart 2756 |
| Cessna 337F | 337F | S/N 33701317 – 33701462 | 33701462 | Eligibility Chart 2756 |
| Cessna 337F | 337F | S/N 33701317 – 33701462 | 33701462 | Eligibility Chart 2756 |
| Cessna 337G | 337G | S/N 33701463 – 33701815 | 33701815 | Eligibility Chart 2756 |
| Cessna 337G | 337G | S/N 33701463 – 33701815 | 33701815 | Eligibility Chart 2756 |
| Cessna 337H | 337H | S/N 33701816 – 33701950 | 33701950 | Eligibility Chart 2756 |
| Cessna 337H | 337H | S/N 33701816 – 33701950 | 33701950 | Eligibility Chart 2756 |
| Cessna P337H | P337H | S/N P3370293 – P3370356 | P3370356 | Eligibility Chart 2756 |
| Cessna P337H | P337H | S/N P3370293 – P3370356 | P3370356 | Eligibility Chart 2756 |