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Greenfield 313581 1/4-28 UNF 3FL H11 SPFL SEMI BOTT HSS SO
MODEL 313581
$8.58 Each
Prices are subject to change
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Returnable: Yes
Material
HSS
Style
SFGP5-SO
Surface Condition
Steam Oxide
Thread Form
UNF
Thread Pitch
28
Tool Size
1/4-28 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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