No.1.Coarse thread drywall screw functions

 

1.Lengthen the life of service

 

2.It could enhance the connection strength and abrasion resistant.

 

3.CLCOIL also could improve thread's stress state and to be spring connection.

 

4.Easy to repair the internal thread and assemble.

 

No.2. Coarse thread drywall screw Installation

 

Install the self-tapping to the special tool, and then drive the tool into pre-cutting hole after one
round. After making sure the tool to be vertical with the surface of workpiece, drive the insert which is installed to the tool into hole forcibly. When the surface of the self-taping insert is under the workpiece surface about 0.2mm, stop driving and extract the tool from hole in the opposite direction.

 

No.3.Technical parameters

 

Material	Grade		Temperature Under Used	Tensile Strength Under Room Temperature	Surface
Stainless Steel	1Cr18Ni9		425°Cshort time315°Clong time	>1400Mpa	No coated Coat lubricant on the surface Coat Cr Coat Ag
	1Cr18Ni9Ti
	00Cr17Ni14Mo2
High temperature Alloy	Inconelx750 Nimonic90		750°Cshort time550°Clong time	>1400Mpa	No coated Coat Ag
Coarse thread drywall screw
Standard		GJB 119.1A, GJB 119.2A, GJB119.4A, GJB5109, GJB5110
		HB5513, HB5514, HB5516, HB 6200, HB 6201, HB 6202JB/T7604.1, JB/T7604.3
		MA3279, MA3280, MA3281, MA3329, MA3300, MA3331
		DIN8140.1. LN 9039.1, LN 9499.1
		NASM122076-122115, NASM124651-124690, NASM21209
		BS7752.1,BS7752.2, AGS 3700-3799, AGS 3600-3699

 

No.4.The application of Coarse thread drywall screw

 

This inserts are widely used in aircraft,aerospace,ship,optical instrument,ordnance industry,electronic appliances,mining industry,motor transport,railway cars,chemical industry,medical instruments,automobile/vehicles and so on.

 

No.5.Picture show

A quantity of screw inserts, the appropriate size drill, high speed steel tap, installation tool,and a tang break tool in the Kit .

 

 

 

If you are interested in our products,please let me know ,I can help you to choose comfortable products!