countersunk phillips self drilling screws (factory)

countersunk phillips self drilling screws (factory) 1>Material:C1022 harden 2>surface: galvanized 3>dia:3.5,3.9,4.2,4.8mm

countersunk phillips self drilling screws  (factory)

**key words: self tapping self drilling screws, drilling screws

**Material: carbon steel C1022

**head type: bugle head, Hexagonal head, countersunk head, wafer head, flange head, flat head, truss head, etc.

**Feature: zinc coated (white, blue, color), drilling point.

**Size:

3.5x25	3.9x13	4.2x16	4.8x16
3.5x35	3.9x16	4.2x19	4.8x19
3.5x45	3.9x19	4.2x22	4.8x22
3.5x55	3.9x22	4.2x25	4.8x25
3.5x65	3.9x25	4.2x32	4.8x32
3.5x75	3.9x32	4.2x38	4.8x38
………	3.9x38	4.2x45	4.8x45
	……	4.2x50	4.8x50

**Package:  1000pcs/box, 12-20boxes/carton or as you require

**Usage: As fasteners, more and more widely used in sheet metal, drill holes in advance then locking.

**Besides: we also manufacture drywall screws, chipboard screws, self tapping screws, roofing nails, common wire nails, concrete nails, iron wire and so on. 

please refer to other types of self dirlling screw as below: 

 

countersunk phillips self drilling screws (factory)