Product Description
No.7 A2 Stainless Steel Hex Flange Self-Drilling Tek Screws
No.7 self-drilling Tek screws manufactured from A2 stainless steel with an external hexagon head and integral flange. Suitable for aluminium, plastic, wood and other appropriate soft materials.
Please note: These A2 stainless steel screws will not self-drill steel.
Key Features
- No.7 / ST3.9 tapping thread
- Approximately 3.9mm thread diameter
- Approximately 1.3mm reference thread pitch
- A2 stainless steel construction
- Hexagon head with integral flange
- 5.5mm reference hexagon drive
- 5/8" length, approximately 16mm
- Available in packs from 1 to 1,000
Standards
DIN 7504-K is the traditional standard for this hexagon washer-head self-drilling screw. The No.7 / ST3.9 size is not included in the current ISO 15480 or BS EN ISO 15480 dimensional tables, so no verified direct British Standard is assigned.
This A2 version is suitable for drilling appropriate soft materials but not steel.
Installation
Use a correctly fitting 5.5mm socket or nut-setting driver. Install at a controlled speed and test the screw on the intended material before use.
Useful Links
- View all hex flange self-drilling screws
- View all self-drilling Tek screws
- No.6 A2 hex flange self-drilling screws
- No.8 A2 hex flange self-drilling screws
- No.10 A2 hex flange self-drilling screws
Specifications are intended as a guide. Confirm dimensions and material compatibility before use in critical applications.
