Self-Locking Phillips Flat Head Machine Screws

Self-locking Phillips flat head machine screws offer a secure and permanent hold, with precisely angled threads ensuring the screw will not move or slip once placed.

MOQ: 10000pcs
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Diagram of a Self-Locking Phillips Flat Head Screw with labeled diameter, length, pitch, head height, and drive type.

(mm) M1.6 M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10
P 0.35 0.4 0.45 0.5 0.6 0.7 0.8 1 1.25 1.5
dk max 3 3.8 4.7 5.6 6.5 7.5 9.2 11 14.5 18
dk min 2.75 3.5 4.4 5.3 6.14 7.14 8.84 10.57 14.07 17.57
k max 0.96 1.2 1.5 1.65 1.93 2.2 2.5 3 4 5
No. 0 1 1 1 2 2 2 3 4 4
M 1.7 2.35 2.7 2.9 3.9 4.4 4.6 6.6 8.7 9.6
t max 0.91 1.25 1.55 1.8 1.9 2.4 2.6 3.3 4.4 5.3
t min 0.66 0.95 1.25 1.5 1.4 1.9 2.1 2.8 3.9 4.8
  • Self-locking Phillips flat head machine screws are ideal for applications requiring a secure, permanent hold.
  • The precisely angled threads of self-locking screws ensure that the screw will not slip or move once placed, offering a reliable and long-term fix.
  • While a standard Phillips head screwdriver or similar tool may be used to remove the screw, it will require force to do so.
  • This makes Phillips flat head self-locking machine screws ideal for applications requiring a secure and permanent hold.

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