Research & Development Security Drive/Temper-Proof Fastener
Overcoming manufacturing difficulties, YEA JANN INDUSTRIAL has mastered various sizes and drive types of security drive (Temper-Proof) fasteners with the top standard of quality control. The security drive fasteners are wildly used in various public spaces, such as metro transits and public equipments.
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		6	Flat Head (Hexagon Recessed Temper-Proof) Machine Screw F (HEX+PIN) M2.9-AB×13
		7	Flat Head (Torx Temper-Proof) Machine Screw F (TR+PIN) M3-0.5×10
		8	Button Head (Torx Temper-Proof) Tapping Screw BT (TR+PIN) M4.2-AB×38