2a thread class right-hand 2.719" overall length 20 thread quantity per inch sash chain, 6.000 in. lg; eye dia of 0.191 in. nickel surface treated unef thread series
2b thread class right-hand 2.719" overall length 18 thread quantity per inch sash chain, 6.000 in. lg; eye dia of 0.191 in. nickel surface treated unef thread series
2b thread class right-hand 2.719" overall length 18 thread quantity per inch sash chain, 6.000 in. lg; eye dia of 0.191 in. nickel surface treated unef thread series
2a single mounting facility thread class 0.312" single mounting facility thread length 1.448" overall length tap, circular, bushing mount unef single mounting facility thread series