Cold-working
Threads from M-MJ1.8 to M-MJ120Automatic assembly of 1-2 washers on screwsChamfered, bent or regular turnbuckles
Straightening after heat treatmentFinishing of the threadToothing (up to mod. 1,57, 30° angle)
Knurling / Grooves / LappingEndless screws / Relief grooves
SHORTNESS OF
DELIVERY TIMES
Last year’s
production
WE HAVE BEEN CERTIFIED FOR MORE THAN 20 YEARS AND QUALITY ASSURANCE AUDITS HAVE NEVER DETECTED ANY ANOMALIES.
The perfect thread rolling, which Giacomo Martinelli S.r.l. works for on a daily basis, does not show any imperfections. Together with my team, I constantly try to minimise the margin of error.
Efficiency is a crucial requisite when we have to manage deliveries as our customers request.
Thread rolling
Our workings
