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

MetricNearest SAENote
8 mm5/16"Very close
10 mm3/8" – 13/32"Slightly larger than 3/8"
11 mm7/16"Very close
13 mm1/2"Very close
14 mm9/16"Very close

Register free to view the complete SAE/metric thread pitch tables, the full wrench cross-reference, and NPT pipe-thread sizes.