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Standard Fasteners
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Application-Specific Fasteners
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Non-Standard Custom Fasteners
Colored zinc plated hexagonal flange self-drilling screws
Dimensions: ST2.9-ST6.3
Standard Designation: GB/T 15856.4
Material Grade: Carbon Steel
Head Style: External hexagon

GB/T 15856.4
Fanyi self-drilling screws are screws with drill bits. Hexagon socket bolts are constructed with special electric tools, and drilling, tapping, fixing and locking are completed at one time. Self-tapping screws are mainly used for the connection and fixing of some thinner plates, such as the connection between color steel plates, the connection between color steel plates and purlins and wall beams, etc. Their penetration capacity generally does not exceed 6mm, and the maximum does not exceed 12mm.
Self-tapping screws are often exposed outdoors and have strong corrosion resistance; their rubber sealing rings can ensure that the screws are water-proof and have good corrosion resistance.
Self-tapping screws are often exposed outdoors and have strong corrosion resistance; their rubber sealing rings can ensure that the screws are water-proof and have good corrosion resistance.
