McMaster 90284A400 Key-Locking Insert Assortment with Tool, 18-8 Stainless Steel, 10-24 to 1/2"-13 Thread Sizes 802G22 They have a spring return

They have a spring return function for ease of use and feature 1/4 in to 4 in bore diameter range for flexibility

it performs unfazed from chilly -4℉/-20℃ up to a toasty 140℉/60℃

Surface Compatibility ABS

Plastic Storage Case

McMaster 90284A400 Key-Locking Insert Assortment with Tool, 18-8 Stainless Steel, 10-24 to 1/2"-13 Thread Sizes 802G22 They have a spring returnThese assortments include various sizes of key locking inserts with thick and thin walls, and an installation tool. Drive the keys into the surrounding material for a more secure hold than thread locking inserts. Use them to repair or convert threads in soft metals such as aluminum. Theyre comparable to Keensert inserts. 18 8 stainless steel inserts are more corrosion resistant than black phosphate steel. They may be mildly magnetic. Thin wall inserts