Capscrew Soc St12 Unc 1/4-20x1 .,100/pk

Steel Socket Head Cap Screw with Black Oxide finish, Drive Type Socket, Standard Head Type, Drive Size 3/16 inch, Thread Size - 1/4"-20, Temp range -65 Degrees F to 300 Degrees F, Rockwell Hardness C37 to C45,Tensile Strength 180,000 psi, Dimensional Standards ASME B18.3