• Points of screws shall be tapered and fluted or slotted as illustrated above for the respective types. The flute on Type T screws shall have an included angle of 90º to 95º and the thread cutting edge located above the axis of screw. Tapered threads shall have unfinished crests, and the flutes or slots shall extend through the first full thread beyond taper except for Type F screws on which tapered threads may be complete at manufacturer's option and flutes may be one pitch short of the first full form thread. Other details of taper and flute design shall be optional with the manufacturer, provided the screws meet the specified performance requirements.
  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • Screws of these nominal lengths and shorter shall have point taper lengths specified for short screws. Longer lengths shall have point taper lengths specified for long screws.
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Item #

Description

Nominal Size or Basic Product Dia.

Threads Per Inch

Max. (D)

Ref. (P)

Max. (S) For Short Screws

Max. (S) For Long Screws

N/A Thread Cutting Tapping Screw Type T, with 0.5000" Nominal Dia. N/A 1/2 in N/A 20 N/A 0.5 in N/A 0.450 in N/A 0.175 in N/A 0.225 in
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