thread insert Free run type: M2X0.4~M48X1.5mm. Screw-locking type: M2.5X0.45~M24X2mm. high quality, delivery on time GJB119.1A~119.3A-2001, GJB119.1~119.4-86, GJB5107~5110-2002, HB5513~5516-1996, HB6200~6202-89, Q/9D204.1~3-1999.Good quality, best price and large capability of production. Having more than 50 years of experiences in this field, and with background of military technology, we can ...