What types of screws are used in the Sifely - S Smart Lock (blue box version) installation?

Question

What types of screws are used in the Sifely - S Smart Lock (blue box version) installation?

Answer

Here is a table that illustrates the types of screws that are unique to this lock.

Item	Type	Size	Image
STEP 2 screws	Cross Head Countersunk Self-Tapping Screw (wood screws)	M4*20(MM)
STEP 3.1 screw	Half - Tooth Screw	M4*25(MM)
STEP 3.2 screw	Cross Round Head Screw	M5*10(MM)
STEP 4 screws	Cross Head Countersunk Screws	X3 Used for 1-3/8'' (30mm) to 1-3/4 (45mm) Door Thickness M4*30(MM)
	Cross Head Countersunk Screws	X3 Used for 1 1/2'' (40mm) to 2 1/4''(55mm) Door Thickness M4*40(MM)
STEP 6 screws	Cross Head Countersunk Screws	M4*16(MM)

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