2a single mounting facility thread class 0.437" single mounting facility thread length 1.899" overall length tap, circular, bushing mount unef single mounting facility thread series
2b thread class right-hand 1.563" overall length 0.500" overall width 40 thread quantity per inch anodize surface treated hood, top opening w/clamp unc thread series
2b thread class right-hand 1.313" overall length 0.625" overall width 40 thread quantity per inch anodize surface treated hood, top opening w/clamp unc thread series
2b thread class right-hand 1.250" overall length 0.500" overall width 40 thread quantity per inch anodize surface treated hood, top opening w/clamp unc thread series
2b thread class right-hand 1.313" overall length 0.438" overall width 40 thread quantity per inch anodize surface treated hood, top opening w/clamp unc thread series