2a thread class 32 thread quantity per inch bslotted, round head machine screw toggle bolts are self-contained anchoring devices w/two-piece, spring, sheet metal wings which automatically open or swing into place after being pushed through an open hole accessible from one side only; trunnion nut material die cast zinc; wings are pivoted either on trunnion nuts or pins zinc surface treated spring-wing, sheet metal, machine screw unc thread series
3a thread class right-hand 0.439" grip length 28 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.501" grip length 28 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand flush countersunk head style 1.380" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium or cadmium surface treated unjf thread series
3a thread class right-hand 0.381" thread length flat countersunk head style 0.302" grip length 32 thread quantity per inch cadmium surface treated unf thread series
