Self Tapping Screws

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At a glance self tapping screws are similar spring nut screws (see later on this page for details). They are in fact different but are often regarded as interchangeable by mechanics and were sometimes likewise by the factory, so mechanics have a good excuse. Self tapping screw threads are sharp and cut a very coarse thread through sheet metal, plastics, etc. They are ideal partners for nylon Lokut nuts (see later). See Machine Screws for screwdriver type explanation.

         
Recessed Countersunk Head Self Tapping Screws
Part No Nominal Thread Dia. Overall Length Remarks Screwdriver Type
AC604041 0.112" (No 4) 1/2" Zinc Pozidriv No 1
AC606031 0.138" (No 6) 3/8" Zinc Pozidriv No 2
CTP604 0.138" (No 6) 1/2" Chrome Pozidriv No 2
AC606051 0.138" (No 6) 5/8" Zinc Pozidriv No 2
AC606064 0.138" (No 6) 3/4" Black Pozidriv No 2
AC108121 0.164" (No 8) 1 1/2" Zinc Pozidriv No 2
CTZ1004 0.190" (No 10) 1/2" Zinc Pozidriv No 2
         
Recessed Mushroom Head Self Tapping Screws
Part No Nominal Thread Dia. Overall Length Remarks Screwdriver Type
MTZ604 0.138" (No 6) 1/2" Zinc Pozidriv No 2
         
Recessed Pan Head Self Tapping Screws
Part No Nominal Thread Dia. Overall Length Remarks Screwdriver Type
53K3241 0.112" (No 4) 1/4" Zinc Pozidriv No 1
PTZ403 0.112" (No 4) 3/8" Zinc Pozidriv No 1
AB604045 0.112" (No 4) 1/2" Black Pozidriv No 1
AB606021 0.138" (No 6) 1/4" Zinc Pozidriv No 2
AB606028 0.138" (No 6) 1/4" Zinc alternative Pozidriv No 2
AB606031 0.138" (No 6) 3/8" Zinc Pozidriv No 2
PTP603 0.138" (No 6) 3/8" Chrome Pozidriv No 2
AB606041 0.138" (No 6) 1/2" Zinc Pozidriv No 2
PTZ605 0.138" (No 6) 5/8" Zinc Pozidriv No 2
AB606053 0.138" (No 6) 5/8" Chrome Pozidriv No 2
36038Z 0.138" (No 6) 3/4" Zinc Pozidriv No 2
PTZ607 0.138" (No 6) 7/8" Zinc Pozidriv No 2
PTZ610 0.138" (No 6) 1 1/4" Zinc Pozidriv No 2
AB608031 0.164" (No 8) 3/8" Zinc Pozidriv No 2
PTZ804 0.164" (No 8) 1/2" Zinc Pozidriv No 2
PTP804 0.164" (No 8) 1/2" Chrome Pozidriv No 2
AB608051 0.164" (No 8) 5/8" Zinc Pozidriv No 2
AB608054 0.164" (No 8) 5/8" Black Pozidriv No 2
36056Z 0.164" (No 8) 3/4" Zinc Pozidriv No 2
AB608101 0.164" (No 8) 1 1/4" Zinc Pozidriv No 2
AB608104 0.164" (No 8) 1 1/4" Black Pozidriv No 2
PTZ1003 0.190" (No 10) 3/8" Zinc Pozidriv No 2
PTZ1004 0.190" (No 10) 1/2" Zinc Pozidriv No 2
PTP1004 0.190" (No 10) 1/2" Chrome Pozidriv No 2
AB610055 0.190" (No 10) 5/8" Bronze Pozidriv No 2
PTZ1006 0.190" (No 10) 3/4" Zinc Pozidriv No 2
AB610071 0.190" (No 10) 7/8" Zinc Pozidriv No 2
AB610081 0.190" (No 10) 1" Zinc Pozidriv No 2
PTZ1012 0.190" (No 10) 1 1/2" Zinc Pozidriv No 2
PTZ1204 0.216" (No 12) 1/2" Zinc Pozidriv No 3
AB612051 0.216" (No 12) 5/8" Zinc Pozidriv No 3
AB612055 0.216" (No 12) 5/8" Bronze Pozidriv No 3
PTZ1406 0.242" (No 14) 3/4" Zinc Pozidriv No 3
PTZ1410 0.242" (No 14) 1 1/4" Zinc Pozidriv No 3
         
Recessed Raised Countersunk Head Self Tapping Screws
Part No Nominal Thread Dia. Overall Length Remarks Screwdriver Type
RTZ602 0.138" (No 6) 1/4" Zinc Pozidriv No 2
RTP603 0.138" (No 6) 3/8" Chrome Pozidriv No 2
RTP604 0.138" (No 6) 1/2" Chrome Pozidriv No 2
AD606081 0.138" (No 6) 1" Zinc Pozidriv No 2
AD608043 0.164" (No 8) 1/2" Chrome Pozidriv No 2
36252K 0.164" (No 8) 1/2" Zinc Pozidriv No 2
AD608054 0.164" (No 8) 5/8" Black Pozidriv No 2
AD608084 0.164" (No 8) 1" Black Pozidriv No 2
RTP2808 0.164" (No 8) 1" Bronze Pozidriv No 2
RTZ1004 0.190" (No 10) 1/2" Zinc Pozidriv No 2
RTZ1005 0.190" (No 10) 5/8" Zinc Pozidriv No 2
RTP1005 0.190" (No 10) 5/8" Chrome Pozidriv No 2
AD610055A 0.190" (No 10) 5/8" Bronze Pozidriv No 2

 

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