คุณลักษณะ

• Cross recessed truss head tapping screw.
• Since the seat surface is larger than the pan head, it has the effect of preventing the seat surface from collapsing.
• The mating member must have a pilot hole.
• Used when fastening to thin steel plates.
• Tighten while self-tapping the steel plate with a pilot hole.
• No chips are produced and no nuts are required.