Product Description
304/18-8/316/410 Stainless Steel Hex Washer Head Self-drilling TEK Screw
Hex washer head self-drilling screws are made of stainless steel and have a sheet metal thread with a self-drilling cutting  point to pierce through metal steel, aluminium, wood etc., including structural steel.
The higher the TEK number the larger the drilling point to pierce heavier gauge metals. Different stainless mode for different applications.
Hex head self drilling sheet metal screws are installed with a wrench or hex nut setter.
Â
Specification
Â
| Type | Self-drilling Screw /Tek Screw |
| Grade | SUS304, 18-8, SUS316(Marine Grade), SUS410(Martensite) |
| Head Type | Hex Waher Head |
| Drive Type | Exterior Hex |
| Point Type | #2, #3, #4, #5, #6, #7 Tek Point |
| Diameter | #8 ~Â 1/4", 4.2 ~Â 6.3mm |
| Length3 | 3/8" ~Â 10", 9.5 ~Â 250mm |
| Standard | DIN, ANSI, JIS, IFI |
| Stock | Unavailable |
Contact
If you're insterested in our Products, please do not hesitate to send us an email  or call us at +86 18072687675 (Mobile)directly.Â
Factory Tour
Â
 Mobile: 008618072687675
Â
Product Description
304/18-8/316/410 Stainless Steel Hex Washer Head Self-drilling TEK Screw
Hex washer head self-drilling screws are made of stainless steel and have a sheet metal thread with a self-drilling cutting  point to pierce through metal steel, aluminium, wood etc., including structural steel.
The higher the TEK number the larger the drilling point to pierce heavier gauge metals. Different stainless mode for different applications.
Hex head self drilling sheet metal screws are installed with a wrench or hex nut setter.
Â
Specification
Â
| Type | Self-drilling Screw /Tek Screw |
| Grade | SUS304, 18-8, SUS316(Marine Grade), SUS410(Martensite) |
| Head Type | Hex Waher Head |
| Drive Type | Exterior Hex |
| Point Type | #2, #3, #4, #5, #6, #7 Tek Point |
| Diameter | #8 ~Â 1/4", 4.2 ~Â 6.3mm |
| Length3 | 3/8" ~Â 10", 9.5 ~Â 250mm |
| Standard | DIN, ANSI, JIS, IFI |
| Stock | Unavailable |
Contact
If you're insterested in our Products, please do not hesitate to send us an email  or call us at +86 18072687675 (Mobile)directly.Â
Factory Tour
Â
 Mobile: 008618072687675
Â
Introduction of Acrow Prop
The hydraulic acrow prop is a prop consisting of two telescoping steel cylinders that are extended by hydraulic pressure that may be provided by a hand-operated pump built into the prop. The hydraulic support prop holds about half a gallon of mineral oil and is fitted with a yield valve that relieves the pressure when the load exceeds that for which the prop is set. A Hydraulic Acrow Prop enables quicker setting and uniform initial loading, and it can be withdrawn from a remote, safe position.
Application of Acrow Prop
Support the rock face of the roof and the roof down, to ensure a safe working space.
Features of Acrow Prop
Underground transport of hydraulic acrow prop is convenient, face and easy to use, easy to move, easy maintenance, save labor, time, effort, provincial money, peace of mind.
Accessories of Acrow Prop
capping, handle body, returning spring, base body, three-use valve, hydraulic cylinders, upper prop, sealing, etc.
Acrow Prop
Acrow Prop,Hydraulic Acrow Prop,Hydraulic Prop
Shandong China Coal Industrial&Mining Supplies Group Co.,Ltd , http://www.chinacoalindustry.com