Note: Receiving inspection sample size and acceptance criteria are designed to meet/exceed ASTM F1470− 19, Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection.
| Lot Size | A | B | C | Acceptance Criteria |
|---|---|---|---|---|
| 1-2 | 2 | 1 | 1 | 0 failures |
| 3-15 | 3 | 2 | 2 | 0 failures |
| 16-25 | 4 | 3 | 2 | 0 failures |
| 26-50 | 5 | 4 | 2 | 0 failures |
| 51-90 | 6 | 5 | 2 | 0 failures |
| 91-150 | 7 | 6 | 2 | 0 failures |
| 151-280 | 10 | 7 | 2 | 0 failures |
| 281-500 | 11 | 9 | 3 | 0 failures |
| 501-1200 | 15 | 11 | 3 | 0 failures |
| 1201-3200 | 18 | 13 | 3 | 0 failures |
| 3201-10,000 | 22 | 15 | 4 | 0 failures |
| 10,001-35,000 | 29 | 15 | 4 | 0 failures |
| 35,001-150,000 | 29 | 15 | 5 | 0 failures |
| 150,001-500,000 | 29 | 15 | 6 | 0 failures |
| 500,001+ | 29 | 15 | 7 | 0 failures |