Thread Terminology
1. External Thread
A thread on the external surface of a cylinder screw or cone.
2.Depth of Thread
The distance between crest and root measured normal to the axis.
3.Pitch
The distance between corresponding points on adjacent thread forms measured parallel to the axis.This distance can be defined in millimeters or by the tpi(Threads per inch),which is the reciprocal of the pitch.
4.Nominal Diameter
The diameter from which the diameter limits are derived by the application of deviation allowances and tolerances.
5.Major Diameter
The largest diameter of a screw thread.
6.Pitch Diameter
On a straight thread,the diameter of an imaginary cylinder,the surface of which cuts the thread forms where the width of the thread and groove are equal.
7.Minor Diameter
The smallest diameter of a screw thread.
8.Helix angle
For a straight thread,where the lead of the thread and the pitch diameter circle circumference form a right angled triangle,the helix angle is the angle opposite the lead.
9.Straight thread
A thread formed on a cylinder
10.Taper thread
A thread formed on a cylinder
11.Taper thread
A thread formed on a cone.
12.Internal Thread
A thread on the internal surface of a cylinder or cone.
13.Left-hand thread
A thread which,when viewed axially,winds in a counterclockwise and receding direction.All left-hand threads are designated LH.
14.Right-hand thread
A thread which,when viewed axially,winds in a clockwise and receding direction.Threads are always right-hand unless otherwise specified.
------------------------------------------------------------------------
Schaftfräser
Fraises
End mills
Frese
Expata Business Company is a professional supplier and wholesaler of various types of solid carbide cutting tools in Taiwan.
We specialize in selling many kind of high speed and high hardness of solid carbide cutting tools, precision end mills(such as 2or 4 flutes ball,corner radius,aluminum end mills),drill bits(such as DIN338 or DIN1897) for CNC machinery processing and other related cutting systems.
Expata delivers superior performance and reliability.
All of our cutting tools are manufactured by Swiss 5-axis CNC grinding machine and made of German carbide rods.
More versatile tools can support the “complete machining” trend on CNC mill-turn centers.
For more information of our products, please contact
Ijaui.service@gmail.com
Or,visit
http://www.ijaui.com.tw/
SHOP ON LINE: http://endmills.en.alibaba.com/
好業績需要有優良刀具做基礎，
溢晁億公司生產各式高速及高硬度切削用之鎢鋼刀具，精密銑刀、鎢鋼鑽頭、標準絲攻；16角面銑刀,T型銑刀、界限螺紋栓環規、銑刀鑽頭研磨機及其他各式精密切削工具。所有刀具原料皆來自德國原廠材料，廠區更採用瑞士五軸CNC刀具研磨機。並銷售各家著名品牌如SUS、HKF、歐樂(HOL)、益壯(YT)、Europa Tool等刀具。若您注重產品品質、交貨速度、產品創新，欲擴展您的產品線，找溢晁億就對了！我們將提供具競爭力的價格及詳細的合作方式，歡迎成為我們的經銷商！
歡迎洽詢：04-7555999
請將需求產品內容傳真到：04-7557599
或email至: ijaui.service@gmail.com
官網：http://www.ijaui.com.tw/
A thread on the external surface of a cylinder screw or cone.
2.Depth of Thread
The distance between crest and root measured normal to the axis.
3.Pitch
The distance between corresponding points on adjacent thread forms measured parallel to the axis.This distance can be defined in millimeters or by the tpi(Threads per inch),which is the reciprocal of the pitch.
4.Nominal Diameter
The diameter from which the diameter limits are derived by the application of deviation allowances and tolerances.
5.Major Diameter
The largest diameter of a screw thread.
6.Pitch Diameter
On a straight thread,the diameter of an imaginary cylinder,the surface of which cuts the thread forms where the width of the thread and groove are equal.
7.Minor Diameter
The smallest diameter of a screw thread.
8.Helix angle
For a straight thread,where the lead of the thread and the pitch diameter circle circumference form a right angled triangle,the helix angle is the angle opposite the lead.
9.Straight thread
A thread formed on a cylinder
10.Taper thread
A thread formed on a cylinder
11.Taper thread
A thread formed on a cone.
12.Internal Thread
A thread on the internal surface of a cylinder or cone.
13.Left-hand thread
A thread which,when viewed axially,winds in a counterclockwise and receding direction.All left-hand threads are designated LH.
14.Right-hand thread
A thread which,when viewed axially,winds in a clockwise and receding direction.Threads are always right-hand unless otherwise specified.
------------------------------------------------------------------------
Schaftfräser
Fraises
End mills
Frese
Expata Business Company is a professional supplier and wholesaler of various types of solid carbide cutting tools in Taiwan.
We specialize in selling many kind of high speed and high hardness of solid carbide cutting tools, precision end mills(such as 2or 4 flutes ball,corner radius,aluminum end mills),drill bits(such as DIN338 or DIN1897) for CNC machinery processing and other related cutting systems.
Expata delivers superior performance and reliability.
All of our cutting tools are manufactured by Swiss 5-axis CNC grinding machine and made of German carbide rods.
More versatile tools can support the “complete machining” trend on CNC mill-turn centers.
For more information of our products, please contact
Ijaui.service@gmail.com
Or,visit
http://www.ijaui.com.tw/
SHOP ON LINE: http://endmills.en.alibaba.com/
好業績需要有優良刀具做基礎，
溢晁億公司生產各式高速及高硬度切削用之鎢鋼刀具，精密銑刀、鎢鋼鑽頭、標準絲攻；16角面銑刀,T型銑刀、界限螺紋栓環規、銑刀鑽頭研磨機及其他各式精密切削工具。所有刀具原料皆來自德國原廠材料，廠區更採用瑞士五軸CNC刀具研磨機。並銷售各家著名品牌如SUS、HKF、歐樂(HOL)、益壯(YT)、Europa Tool等刀具。若您注重產品品質、交貨速度、產品創新，欲擴展您的產品線，找溢晁億就對了！我們將提供具競爭力的價格及詳細的合作方式，歡迎成為我們的經銷商！
歡迎洽詢：04-7555999
請將需求產品內容傳真到：04-7557599
或email至: ijaui.service@gmail.com
官網：http://www.ijaui.com.tw/
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