3000pc IUB-M3.5-2 Ultrasonic/ Heat staking inserts Tapered Thru-Threaded PEM Nut

3000pcs IUB-M3.5-1/2 Tapered Thru Threaded InsertsTypes IUA IUB IUC-Metric Brass Nature PEM Standard knurled nuts Factory Wholesale ? Designed for use in tapered holes. Tapered mounting hole allows for rapid and accurate alignment prior to i…