Basic Info.
Model NO.
Hex Lag Screw Hex Wood Screws DIN571
Connection
Common Bolt
Head Style
Hexagonal
Standard
DIN, ANSI
Grade
4.8&8.8
Process
Cold Forging
Finish
Surface Treatment and Thread Tolerance: DIN933 Hex
Length
16-200mm or Custom
Application
Machinery, Equipment, Vehicles, Ships, Railways, B
Transport Package
Small Box & Bulk & Customizing
Specification
M5-M20
Trademark
STRONG BOLT
Origin
Ningbo, China
HS Code
7318140090
Production Capacity
2500tons/Year
Packaging & Delivery
Package Size
10.00cm * 10.00cm * 10.00cm
Package Gross Weight
1.000kg
Product Description
| ds | nominal | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 |
| Min. | 3.52 | 4.52 | 5.52 | 6.42 | 7.42 | 9.42 | 11.3 | 15.3 | 19.3 | |
| da | Max. | 5 | 6 | 7.2 | 8.2 | 10.2 | 12.2 | 15.2 | 19.2 | 24.4 |
| k | nominal | 2.8 | 3.5 | 4 | 5 | 5.5 | 7 | 8 | 10 | 13 |
| Max. | 3.1 | 3.88 | 4.38 | 5.38 | 5.88 | 7.45 | 8.45 | 10.45 | 13.9 | |
| Min. | 2.5 | 3.13 | 3.63 | 4.63 | 5.13 | 6.55 | 7.55 | 9.55 | 12.1 | |
| s | Max. | 7 | 8 | 10 | 12 | 13 | 17 | 19 | 24 | 30 |
| Min. | 6.64 | 7.64 | 9.64 | 11.57 | 12.57 | 16.57 | 18.48 | 23.16 | 29.16 | |
| e | Min. | 7.5 | 8.63 | 10.89 | 13.07 | 14.2 | 18.72 | 20.88 | 26.17 | 32.95 |
• Carton size : According to the demand of the customers.
• Packing : plastic bags,Box, carton , then put on pallets, or according to the demand of the customers.
DIN571 hexagon head wood screws have higher torque force than pan head and countersunk head tapping screws, better control of torque required for rotation, and higher strength after combination. The engineering standard definition of thread rolling self-tapping screws is higher and more specific than that of forming or cutting self-tapping screws, making thread rolling self-tapping screws a real "construction" fastener.
There are coarse rod and full thread, coarse rod products have screw and thread, one end of the screw forms a pointed head, the tooth distance is relatively large, and the chip free tap is similar to, can be directly screwed in without tapping teeth, the lead of the thread is larger than the mechanical thread, the thread length is greater than or equal to 0.6 of the specification length, the thread Angle is 600, the product specification M4 -- M20, etc.
• We are a typical China supplier with more than 10 years experiences on fasteners.We are professionally exporting under the standards of DIN, JIS, GB, ANSI, and BS, as well as nonstandard fasteners. Now we have gained close cooperation with clients from Canada, Dubai, Europe, India,Chile,Peru and Russia, and won good comments from users. We always fulfilling customers' expectations by following the principle of "Providing services whenever and wherever our customers need it" to establish a steady beneficial relationship and wining customers' hearts. If you need more information, please contact our sales department.