Drywall Screw from https://www.lizhan-hardware.net/product/fastener/drywall-screw/
Production Range:
RECESS: Philips,Square,Torx
DIA:#6-3.5 #8-4.2 #10-4.8 #12-5.5 #14-6.3
HEAD:bugle head
LENGTH:#6,#7,#8-7.9-8.4 #10 8.6-9.2 #12,#14-11.8-12.4
Grade:C1022A
NORM:
Surface:black phosphate ,zinc plated ,Yellow Zinc plated, Dacromet, Ruspert, Magni
Thread:fine thread coarse thread