0.04t667p- Basic form onaet 3 beary的og 1/2 PD tolerance on nut ehuoselaoiaee 国 上活大学 English Classes2 A-External threads(screws) B Internal threads(nuts) 1-Screws or nuts that may be used in a dirty environment = such as in road,mining,and farm machinery and which may be coated. Also used in around the home applications. 4039 40 English Classes2 A - External threads (screws) B - Internal threads (nuts) 1 - Screws or nuts that may be used in a dirty environment = such as in road, mining, and farm machinery and which may be coated. = Also used in around the home applications