
Material Symbols HSS:○ HSS-Co:● HSS-P:◎
| Main size des | ignation and sp | ecification | |||
| ① metric | ② unified | ③ whitworth | ④ sewing screw | ⑤STI (metric) | ⑥STI (unified) |
| M35×3 M35×2 | 1 3/8-6UNC 1 3/8-8UN 1 3/8-12UNF | W1 3/8-6 | STIM30×3.5 | STI1 1/4-12UNF | |
| M35×1.5 M35×1 - | 1 3/8-16UN 1 3/8-18UNEF 1 3/8-20UN 1 3/8-28UN | ||||
| M35×3 M35×2 | |||||
| M36×4 M36×3 M36×2 | - | - | STIM33×2 | ||
| M36×1.5 M36×1 M36×0.5 | |||||
| M36×4 M36×3 M36×2 | |||||
| M37×1.5 | - | - | |||
| M38×3 M38×2 | - | - | STIM33×3.5 | STI1 1/4-7UNC | |
| M38×1.5 M38×1 M38×0.5 | STI1 3/8-12UNF | ||||
| M38×3 M38×2 | |||||
| M39×4 M39×3 M39×2 | 1 1/2-6UNC 1 1/2-8UN 1 1/2-12UNF | W1 1/2-6 | STIM36×2 | ||
| M39×1.5 M39×1 | 1 1/2-16UN 1 1/2-18UNEF 1 1/2-20UN 1 1/2-28UN | ||||
| M39×4 M39×3 M39×2 | |||||
| M40×4 M40×3 M40×2 | - | - | STIM36×3 | ||
| M40×1.5 M40×1 | |||||
| M40×4 M40×3 M40×2 |