50Pcs Thread Inserts Wire Protection Sleeve Repair Tool Fastener US Standard 5/16in18x3D

1、This is a new type of female threaded fasteners. Also called threaded sheaths stainless steel threaded sleeves wire sleeves 2、The product is made of high?strength high?accuracy diamond?shaped cross?section steel wire very durable 3、Application on low?strength engineering materials such as aluminum alloy zinc alloy alloy copper plastic engineering plastics etc. can improve thread strength and wear resistance significantly 4、When there is a thread processing error or a damaged internal threaded hole is repaired the wire thread insert can be used as a repairing method economically and effectively 5、Use wire thread inserts to convert between metric and inch threaded holes convenient and fast very practical