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发布日期:2021年12月09日
FLAT HEAD WOOD SCREW SIZES

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 countersunkhead") is a type of 中国viboss孕妇 最新章节免费阅读无弹窗 E道阅读网,52色播 游戏竞技类网文作品 E道阅读网,耽美父子肉 全文免费阅读 E道阅读网wood screw and shall have a flat top surface and a bearing surface with a conical head angle of approximately82 deg.

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 WoodScrew, Steel

- Standard lengths of wood screws are given below.

Nominal Screw Length Nominal Length Increment Tolerance on Length
Plus Minus
Up to 5/8 in., incl 1/8 0 0.03
Over 5/8 to 1 in., incl 1/8 0 0.05
Over 1 to 1 1/2 in., incl 1/4 0 0.05
Over 1 1/2 to 2 3/4 in., incl 1/4 0 0.06
Over 2 3/4 in 1/2 0 0.09

Flat head wood screw sizes and dimensions:

INPUT PARAMETERS
Screw Size Number


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Dimensions of Slotted Flat Countersunk Head Wood Screws
Dimensions of Slotted Flat Countersunk Head Wood Screws
Parameter Value
Nominal Size Number---
Decimal---
Head DiameterAmax---
Amin---
Head Height Href---
Slot Width Jmax---
Jmin---
Slot Depth Tmax---
Tmin---
Fillet Radius Rmax---
Dimensions of Phillips (Type I Cross) Recessed Flat Countersunk Head Wood Screws
Dimensions of Phillips (Type I Cross) Recessed Flat Countersunk Head Wood Screws
Nominal Size Number---
Decimal---
Head DiameterAmax--- 中国viboss孕妇 最新章节免费阅读无弹窗 E道阅读网,52色播 游戏竞技类网文作品 E道阅读网,耽美父子肉 全文免费阅读 E道阅读网
Amin---
Head Height Href---
Recess Diameter Mmax---
Mmin---
Recess Depth Tmax---
Tmin---
Recess Width Nmin---
Driver Size ------
Recess Penetration Gaging Depth Max---
Min---
Fillet Radius R中国viboss孕妇 最新章节免费阅读无弹窗 E道阅读网,52色播 游戏竞技类网文作品 E道阅读网,耽美父子肉 全文免费阅读 E道阅读网max---
Dimensions of Pozidriv (Type IA Cross) Recessed Flat Countersunk Head Wood Screws
Dimensions of Pozidriv (Type IA Cross) Recessed Flat Countersunk Head Wood
Nominal Size Number---
Decimal---
Head DiameterAmax---
Amin---
Head Height Href---
Recess Diameter Mmax---
Mmin---
Recess Depth Tmax---
Tmin---
Recess Width Nmin---
Driver Size ------
Recess Penetration Gaging Depth Max---
Min---
Fillet Radius Rmax---
Dimensions of Frearson (Type II Cross Recessed) Flat Countersunk Head Wood Screws
Dimensions of Frearson (Type II Cross Recessed) Flat Countersunk Head Wood Screws
Nominal Size Number---
Decimal---
Head DiameterAmax---
Amin---
Head Height Href---
Recess Diameter Mmax---
Mmin---
Recess Depth Tmax---
Tmin---
Recess Width Nmin---
Driver Size ------
Recess Penetration Gaging Depth Max---
Min---
Fillet Radius Rmax---

Supplements:

Link Usage
Wood Screw Sizes Wood screw sizes and thread dimensions according to ANSI B18.6.1-1981 standard.

Reference:

  • ANSI B18.6.1 - 1981, Wood Screws (INCH SERIES)