Pozidriv, sometimes shortened to Pozi, stands for positive drive
This head type has a cross recess in the centre with four small indentations around it creating 8 points of contact
This design provides improved engagement and contact with the screwdriver and prevents ejection force when tightening or loosening the machine screw
代表的用途
軽工業 家庭用電気機器 電子機器
What are Machine Screws Used For
Machine screws are designed to hold separate components together in a wide range of applications such as industrial machinery and vehicle engines
They are screwed through pre-drilled tapped holes in 2 components and can fastened at the rear with a nut
This marine grade 316 steel machine screw is ideal for use in the following：
Swimming pools Chemical plants Boat deck fittings Dairy equipment Medical sterilising equipment Sewerage treatment plants
Frequently Asked Questions
What Does M2.5, M3, M3.5, M4, M5 Mean
These measurements are found on metric screws, The 'M' stands for Metric
The number after the 'M' is the nominal outer diameter of the screw in mm
How Do I Cut a Machine Screw
Damage to the machine screw threads can prevent parts from fitting together properly, therefore care has to be taken when cutting them and the correct tools used
Cutting a small machine screw （up to standard size #10 or metric size M5 （5mm） Use a pair of multipurpose wire strippers or electricians pliers that feature M2.5, M3, M3.5, M4, M5 threaded holes
These holes are designed for cutting bolts without damaging the thread
Open the jaws and thread the machine screw into the correct size hole to the distance required
Squeeze the tool handles closed and the screw will be cut at the point where the two halves of the jaws come together
You will have a clean cut without any thread damage
Cutting a large machine screw （larger than size #10 or metric size M5 （5mm） This is best done using a hacksaw
Thread the nut on the screw until it reaches the desired point on the head side of the cutting line
Place the screw in a vice or clamp to keep it secure when cutting and cut the screw as straight as you can
When you unthread the nut it will repair and realign any threads that may have been damaged by the saw blade.
