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Greenfield 313589 1/2-20 UNF 3FL H11 SPFL SEMI BOTT HSS SO
MODEL 313589
$19.23 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: Yes
Material
HSS
Style
SFGP5-SO
Surface Condition
Steam Oxide
Thread Form
UNF
Thread Pitch
20
Tool Size
1/2-20 UNF
Oversized taps have a slightly larger pitch diameter than standard taps. They are used to make threads in a hole before a coating or treatment is applied to the hole. Once the coating or treatment is applied, the threads will be reduced to the standard pitch diameter. The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals.
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