https://www.amazon.com/dp/B08K78L8JR/ref=cm_sw_r_apan_i_BMAVK307THWCMCTBWFMK

I got the ones in this second link, they work just fine but I will say they feel like they have a grit in them when you pull them out. Not really a big deal and I did try cleaning and oiling then but it seems to be a relatively closed system with no way to clean them good. Ordered 2 sets so my friend could do his packout also, all 4 pins feel the same. It's either blasting media or metal shavings if I had to guess.

Hand Retractable Spring Plunger with Knurled Handle Stainless Steel Lock-out M6 Type Quick Release Pins for Rolling Toolbox, 1/4 Inch-20 Thread Size 0.500 Inch Thread Length without Patch (2 Packs) https://www.amazon.com/dp/B09KH4D2C1/ref=cm_sw_r_apan_i_VW05CKTXAEMGH7FBRH67?_encoding=UTF8&psc=1