Black Oxidation Gypsum Board Screws

**Material: carbon steel C1022
**Feature: black(grey)phosphate/zinc coated; bugle head, Phillips type, fine thread(twin thread) / coarse thread, sharp point, hardened.
**Size: dia: 3.5, 3.9, 4.2, 4.8(#6-#10) length: 19mm-150mm
3.5*19
3.9*25
4.2*32
4.8*38
3.5*25
3.9*32
4.2*38
4.8*50
3.5*28
3.9*35
4.2*50
4.8*75
3.5*32
3.9*38
4.2*55
4.8*90
3.5*35
3.9*41
4.2*63
4.8*100
3.5*38
3.9*45
4.2*75
4.8*110
3.5*41
3.9*50
4.2*80
4.8*120
3.5*45
3.9*55
4.2*90
4.8*140
3.5*50
**Usage: As fasteners, more and more widely used in hard wood, drop ceiling, furniture-making, gypsum board/plaster board decoration, sheet iron-machining, light steel joist and construction so on
**Package: 1000pcs/box, 12/20boxes/carton or in bulk or as you require
**delivery time: as usual 25 days after deposit for one container
**Besides: we also manufacture chipboard screws, self tapping screws, self drilling screws, roofing nails, common wire nails, concrete nails, iron wire and so on.