UNC 4# 6# 8# 10# - 1/2" Helicoil Thread Inserts Wire Insert Thread Repair 304SS

Thread Type：UNC. Internal Thread Size：4#-40，6#-32，8#-32，10#-24，10#-32，1/4-20，5/16-18，3/8-16，1/2-13. If you encounter any problems with your order, we are here to help. Material: 304 Stainless Steel.

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