M4 screws are typically used in the manufacture of small items of electrical equipment, laptops, cameras and mobile phones. The “M” designation for metric screws indicates the outer diameter of the screw in millimeters, so for an M4 screw, the outer diameter is 4mm. However, in practice the actual diameter might be between 3.9mm-4mm due to manufacturing tolerances. The head is standard star head and pitch is also standard 0.4mm of both Nut and Screw to make them compatible with existing appliances hence we can use it in the equipment like laptop cameras and also for attaching caster wheels in robotic projects. The length of the screw is 20mm.
- M4 Type
- 20mm in Length
- Button head screw (Star)
- Each unit has 4 Screws
4× M4 20mm Screw
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
1. Manufacturing DefectIf you receive a product with a manufacturing defect, please notify us within the 3 days of you receive the product, supported by proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost. Please note that if your item is already soldered or modified in manner we will not be able to take it under return.
2. Wrong Item Shipped
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
Limitation of ReturnsWe don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product. Returns are accepted only with 3 days from the date of delivery.
We ship to all over India with free shipping on all prepaid orders. For Cash on Delivery orders INR 70 will be charged for orders below INR 599 and INR 20 will be charged for the orders above 599. Please contact to our support team at firstname.lastname@example.org for any question related to shipping.
Please note that the Minimum Order Value is INR 200 for both prepaid and COD orders.