Only intended for use with blunt Acme threaded spring nut screws, spring nuts fall into three types: the U-, C- or J-nut. These letters approximate to the shape of the nuts when viewed in section, so a U-nut has its fold along the short edge, the C-nut has its fold along the long edge and the J-nut has the upper side longer than the lower.
|U-, C- and J-Nuts|
|Part No||Spring Nut Type||Overall Shape||Spring Nut Screw Dia.|
|AK606021||U Type||Long Rectangular||0.138" (No 6)|
|GHF712||U Type||Long Rectangular||0.164" (No 8)|
|AK610021||U Type||Long Rectangular||0.190" (No 10)|
|PFS410||U Type||Wide Rectangular||0.190" (No 10)|
|PFS510||J Type||Long Rectangular||0.190" (No 10)|