Flat head wood screw sizes and dimensions are shown in the following charts according to ANSI B18.6.1-1981 standard
for slotted, Phillips, Frearson and Pozidriv drives.
The flat head (also referred to as "flat countersunk
head") is a type of 亚洲成色综合网站在线高清完整视频 亚洲成色综合网站
wood screw and shall have a flat top surface and a bearing surface
with a conical head angle of approximately
The designation of flat head wood screws shall be in following format: Nominal size;
product name, including head style and driving provision; material; and finish.
Ex: 8 x 7/8 Slotted Flat Countersunk Head Wood
- Standard lengths of wood screws are given below.