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| Bolt Size | M8 x 60 mm |
| Threaded Portion | 9 mm |
| Unthreaded Portion | 51 mm |
| Material | Stainless steel |
| Color | Silver |
| Pattern | Solid |
La Marzocco Group Head Cap Bolt This is the Allen-head cap bolt that secures the group head cap on La Marzocco commercial machines, an M8 x 60mm bolt with only the final 9mm of the shank threaded. SPECIFICATIONS M8 x 60 mm, 6 mm Allen (hex) head drive Only the final 9 mm of the shank is threaded COMPATIBILITY Fits: La Marzocco group heads using this bolt pattern INSTALLATION Simple DIY swap with a 6 mm Allen driver, no special tools required. PRO TIPS Because only the last 9 mm of the shank carries threads, don't keep cranking once you feel it seat, the smooth shank above the threads won't grip, and forcing it past that point just strips the bolt hole or snaps the head.
The catalog often lists the same model at several merchants — worth a price check before you buy.