Hi-Lo Thread Concrete Window Screw Concrete Self Tapping Screws

• Customization: Available
• Material: Carbon Steel
• Type: Countersunk Head
• Model NO.: T25/30
• Groove: Torx
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 4.8
• Item Name: Torx Head T30/25 Yellow Zinc Concrete Screw Window
• Head Type: T25/30
• Color: Yellow, White
• Surface Treatment: Galvanized Zinc Coated
• Heat Treatment: Yes
• Customize: Non-Customized
• Thread: Double Fine Thread
• Other Thread: Hi-Lo Thread
• Pack: Small Box or Bulk CTN
• Application: Window, Concrete
• Transport Package: 1000pieces/Box, 25kg/Carton
• Specification: DIN, Not Standard
• Trademark: no brand
• Origin: Tianjin, China
• HS Code: 7318120090
• Production Capacity: 2000mt/Month

Product Description

Tianjin Lituo Imp&Exp Co., Ltd is the new star in fastener industry. Our popular products include: Common wire nail, concrete nail, umbrella head roofing nail, duplex nail, coil common nail, aluminium blind rivets, and drywall screws, chipboard screws, self drilling screws, self tapping screws with hex head, pan head, etc.
Besides, we also set foot in building material industries, such as insulation material glass wool, rock wool, and iron wire industries, etc.
Recently, our new product has gone into operation, Dental Workstation, Technician table, providing technician room for dentists. Once the new item on sale, a new trend of dental technician purchasing has swept the large European market.
We have clients all over the world, USA, Russia, Austrilia, Ukraine, UAE, South Africa, Brazil, Chile, Singapore, Malaysia etc, the list is endless.


Iterm name: Concrete screw/ window frame screw

Type: Flat Torx head concrete Screw(with nibs under head and cut thread on the body, there is the Hi-Lo thread near to the point)

Size: 7.5x42 7.5x62, 7.5x80, 7.5x82 7.5x92 7.5x100, 7.5x102, 7.5x112 7.5x120, 7.5x122, 7.5x132 7.5x140 7.5x152 7.5x182


Material: C1022 steel

Head: Flat head T25/T30

Point: Sharp

Surface: Zinc, Yellow zinc plated

Packing: 1000pieces/box

Original place: China.

Our products are very popular with the customers from Europe, America, Africa, Middle-east, Korea, India for the reliable quality and competitive price.

We can also supply you the Nylon caps and Drill bits used together with concrete screw



Welcome your inquiry and visit our factory!

Item:	concrete screw
Head type:	Flat ,mushroom
Dia:	3/16 1/4
Length:	1" to 6"
Feature:	25 mm~ 150mm (1"~ 6")
Material:	45# steel
length(mm)	.5,3.2,3.5
Gauge(mm)	19,25,25,40,50
Description:	smooth body, groove twist shank.vertical lines,flutted
Surface treatment:	electric galvanized. ,black coating
Packing:	25 kg/carton bulk packing , small box or according to the requirement of customers

Contacts: Ashley Qiao