M2 x 18mm Slotted Countersunk Screws (DIN 963) - Marine Stainless Steel (A4) Description
The M2 x 18mm Slotted Countersunk Screws (DIN 963) - Marine Stainless Steel (A4) has the following features:
- Countersunk Angle (CA): 90 Degrees (+2/-0)
- Natural Finish
- Head Diameter (D): 3.8 mm
- Head Diameter (D) Tolerance: +0/-0.3 mm
- Head Length (H): 1.2 mm
- Manufacturing Standard: DIN 963
- Stainless Steel - Marine (A4)
- Stainless Steel Material Family
- Overall Length (L): 18 mm
- Slot Depth (P): 0.6 mm
- Slot Width (A): 0.5 mm
- System of Measurement: Metric
- Thread Pitch: 0.4 mm
- Thread Size: M2 (2 mm)
Discover more about the Metric Slotted Countersunk Screws range.
Slotted countersunk screws are precision machine threaded fasteners designed with a tapered head that sits flush within a countersunk hole, offering a clean, low-profile finish. Featuring a straight slotted drive, these slotted countersunk machine screws are ideal for applications where traditional slotted tools are used.
Commonly found in automated and manual assembly lines, they provide a consistent and aesthetically discreet fastening solution with simple tool engagement and a flush finish free of snags and clearance.
How Slotted Countersunk Screws Work
These slotted countersunk head screws are driven using a flat-blade screwdriver, making them suitable for environments where torque control is crucial. The countersunk head allows the screw to rest level with the surface, reducing snagging and offering a neat appearance. Their simple design supports reliable fastening across a range of light to moderate load applications, especially where flush surfaces are required.
Materials Slotted Countersunk Screws Are Made From
Accu offers slotted countersunk flat head screws in a variety of materials to meet diverse engineering requirements:
- Steel: Suitable for general-purpose use with good strength.
- Stainless Steel - (A2): Corrosion-resistant and ideal for indoor and outdoor environments.
- Stainless Steel - Marine (A4): Enhanced corrosion resistance for marine and high-humidity applications.
- Brass: Offers excellent conductivity and corrosion resistance, often used in electronics.
- Plastic - Nylon: Lightweight and non-conductive, suited for insulating applications.
- Plastic - PP: Chemical-resistant with good fatigue resistance.
- Plastic - PVDF: Exceptional chemical resistance and thermal stability.
Sizes and Types of Countersunk Slotted Screws Available
Our countersunk slotted screws are offered in a wide range of thread sizes and lengths to suit specific project requirements:
- Thread Sizes: M0.5 (0.5mm) to M16 (16mm)
- Lengths: 2mm to 160mm
- Finishes Available: AccuBlack for reduced reflections and enhanced aesthetics, AccuLock for vibration resistant pre-applied thread locking patches, and Zinc Plating for added corrosion protection.
FAQs
Q: Why are countersunk slotted screws ideal for my project?
A: They provide a flush finish, are easy to install with common slotted tools and are suitable for applications where a clean surface profile is essential.
Q: Are slotted countersunk screws available in materials suited for outdoor use?
A: Yes, A4 marine grade stainless steel and PVDF plastic options are specifically suited for harsh outdoor or marine environments.
Q: What tool should I use to install slotted countersunk screws?
A: A standard flat-blade screwdriver or slotted drive bit is used to drive these screws securely into place.
Q: How do I choose the correct slotted countersunk screw for my application?
A: Consider the material, required load, environmental conditions and the surface finish. Matching the screw material to the application environment is key. Read our screw buying guide for more information.
Q: What is the minimum order quantity for slotted countersunk screws at Accu?
A: Accu offers no minimum order quantities, with all sizes available to purchase individually to support prototyping and bespoke builds.
