Come with tip type, 304 stainless steel material.
Self-tapping screws drill their own holes when they are screwed into materials such as sheet metal, plastics, wood, and drywall.

Product Name: Self-Tapping Screw
Head Style: Flat Head
Material: 304 Stainless Steel
Thread Size 1: M2.2 x 9.5mm/0.09" x 0.37" (D*Total.L)
Thread Size 2: M2.2 x 6.5mm/0.09" x 0.26" (D*Total.L)
Head Size: Dia : 4mm/0.16"
Bit Driver Size: 1.7mm
Fastener Type: Self-Tapping Screws
Main Color: Silver Tone

Package Content: 100(+/-2%) x 0.09" x 0.37" Self-Tapping Screw; 100(+/-2%) x 0.09" x 0.26" Self-Tapping Screw