ELX AL POSpiral PointedTaps forAluminumO lverall ength Thre leng L ℓad th Thread+Ne length ℓnck Shank dia. DsSize of square K N fLength of square ℓk
SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)Ds (inch)K (inch)ℓk (inch)o. o flutesType
1/4-28UNFGH3 GH4Y86209 Y862115P3.150.7481.1810.2550.1910.31231
5/16-18UNCGH3 GH5Y86212 Y862135P3.5430.8661.3780.3180.2380.37532
5/16-24UNFGH3 GH4Y86214 Y862155P3.5430.8661.3780.3180.2380.37532
3/8-16UNCGH3 GH5Y86216 Y862175P3.9370.9451.5350.3810.2860.43732
3/8-24UNFGH3 GH4Y86218 Y862195P3.5430.7871.5350.3810.2860.43732
7/16-14UNCGH3 GH5Y86220 Y862215P3.9370.945-0.3230.2420.40633
7/16-20UNFGH3 GH5Y86222 Y862235P3.9370.945-0.3230.2420.40633
1/2-13UNCGH3 GH5Y86224 Y862255P4.3311.142-0.3670.2750.43733
1/2-20UNFGH3 GH5Y86226 Y862275P3.9370.866-0.3670.2750.43733