So I've often wondered what YFS was on some button and flat head 4-40 screws that I've seen over the years, but I haven't bothered to look it up until now. Apparently YFS stands for Fang Sheng Screw Co. (Taiwan). They've been around since 1979. AFAIK none of my vintage RC10's have YFS heads, but I am wondering if AE was using some of their screws bitd. I have several packs of A-main Protek screws with Made in USA on the back of the header card, but inside are YFS screws . I suppose only the header card was the USA part. Not a huge deal for most, but for those with ocd about Chinese anything on a vintage USA build it could mean a screw swap.
Great info! I have seen these screws all over my Losi Jrx2 - ProSE cars. I make sure I use them for a proper restoration. Never had one snap and Taiwan does not equal cheap Chinese..
BattleTrak wrote: ↑Sun Aug 07, 2022 2:10 pm
Great info! I have seen these screws all over my Losi Jrx2 - ProSE cars. I make sure I use them for a proper restoration. Never had one snap and Taiwan does not equal cheap Chinese..
Are you implying that (some) vintage Losi used YFS screws? Did you open the box and build them?
BattleTrak wrote: ↑Sun Aug 07, 2022 2:10 pm
Great info! I have seen these screws all over my Losi Jrx2 - ProSE cars. I make sure I use them for a proper restoration. Never had one snap and Taiwan does not equal cheap Chinese..
Are you implying that (some) vintage Losi used YFS screws? Did you open the box and build them?
Yes. I remember them on my JRX-pro I bought new back in 1991..and have a many used cars that all have them.