we are involved offering a wide range of Brass Threaded Inserts , Brass Inserts , Brass Moulding Inserts , Plastic Moulding Brass Inserts , Roto Moulding Brass Inserts , Injection Moulding Inserts , PPR Moulding Inserts with different sizes, designs, thread and coating used for industrial and mechanical applications. Dimensions Internal Thread Sizes (ISO Metric) Length Length Head Thickness Head dia. External dia. Rec. Hole Size -0.00 + 0.10 Min. Wall Thickness mm mm mm mm mm mm mm M3 4.7 3.5 0.51 5.5 4.2 4.0 3.2 M4 7.9 5.0 0.82 5.0 5.9 5.6 4.0 M5 9.4 6.0 0.99 7.9 6.6 6.4 4.8 M6 12.6 9.5 12.6 9.5 8.3 8.0 6.0 M8 12.6 9.5 12.6 11.1 9.9 9.6 7.0 * Other lengths possible on quotations. Material : CZ 121 Pb3 CZ 122 UNS C36000 CDA 360 DZR, EN 12164 BS 2874 - CZ 114 BS 2874 - CZ 115 c345, C 353, CDA 36000, C 675, cz 114, cz 115, en 12165 CW 721 r & CW 722r, CW 614n, cuzn36pb2, cuzn39pb3 & cuzn36pb3. BS 249 Type. Threads : Metric , NPT , BSP, BSPT, NPTF, UNEF, UNS, UNF , BSF, UNC, NPS, NPSM. Size: 2mm 3mm 4mm 5mm 6mm 8mm 10mm 12mm 16mm 20mm 25mm 32mm. 1/8" 5/32" 3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 1" 11/8" 11/4" 11/2" 13/4" 2". Finish and Coating : Natural, Nickel & Tin Finish. But Surface Finishes such as Chromium, Silver, Gold, etc. can be done as per custom request. Types : Straight Hole Blind (Closed bottom) Collar Inserts and Tri Slotted Inserts Ultrasonic and Press in Features : Threads As Per International Go And No-Go Standards. Deep Grove For Maximum Pull Out Resistance. Inner-Diameter After Threads With Very Close Tolerance To Prevent Unnecessary Flush To Enter Into The Inserts. Applications : Instrumentation, Telecommunications, and other Plastic Cases Assembly.