Thread Pitch & Wrench Cross-Reference
SAE Unified thread pitches (TPI), metric pitches, a SAE-to-metric wrench cross-reference, and tapered NPT pipe-thread sizes for senders and fittings.
SAE ↔ Metric Wrench Near-Equivalents
| Metric | Nearest SAE | Note |
|---|---|---|
| 8 mm | 5/16" | Very close |
| 10 mm | 3/8" – 13/32" | Slightly larger than 3/8" |
| 11 mm | 7/16" | Very close |
| 13 mm | 1/2" | Very close |
| 14 mm | 9/16" | Very close |