Used on b2 aircraft. right-hand 0.1875" thread length flat countersunk head style 56 thread quantity per inch screw, 2-56 x .187 lg flat head philips unc thread series
Used on 5805015819251 central office,telephone,automatic. 2a thread class right-hand 0.516" thread length pan head style 32 thread quantity per inch screw, pan head, assembled washers, standard shoulder washers black chemical finish screw surface treated flat washer material is corrosion resistant steel per ams-qq-763a class 302, condition b or class 304 condition a, or class 384 condition a. lock washer material is corrosion-resistant steel per NASM35338. unc thread series
Used on 800 series hydapipe unit. right-hand hexagon head style 32 thread quantity per inch retainer screw, 6-32X1/4 this item requires a hy-50 hex head screwdriver (special tool) from mfg unc thread series
2a thread class right-hand 0.240" thread length hexagon head style 18 thread quantity per inch hex head captive machine screw passivate screw surface treated unc thread series
