Flat Surface Finish
Installed flush with the surface, leaving no protrusion. Improves appearance and prevents interference or scratching.
DIN 963 Slotted Countersunk Head Screw
- Standard: DIN 963
- Material: SUS304, SUS316, SUS410, Carbon Steel
- Thread Size: M3-M8
- Surface Treatment: Plain, Zinc Plated, HDG, Dacromet, Ruspert
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
DIN 963 is a slotted countersunk screw; its corresponding international equivalent standard is ISO 2009.
This screw features a 90° tapered head that is completely flat; when installed in a countersunk hole, the screw head is fully recessed and flush with the workpiece surface. This ensures a smooth, even mounting surface and prevents snagging.
Draw
Specification
Key Design Features
- Head Shape (Countersunk/Flat): The top is a flat, straight surface, and the lower half has a 90-degree taper.
- Slotted Drive (Slotted): Installation and removal can be performed using a standard flathead screwdriver. Although less common than cross-recessed (e.g., DIN 965) or hex socket heads on modern high-speed fully automated assembly lines, it remains widely used in traditional machinery, woodworking, and manual applications.
- Thread Type: The standard is metric machine threads, typically fully threaded with a flat-head end.
- Length Measurement Standard: Unlike standard pan-head screws, the nominal length (L) of DIN 963 includes the head thickness; that is, it is the total length of the screw from the topmost plane to the very end.
Product Advantages
Slotted Drive Design
Compatible with standard flat-head screwdriver for easy installation and maintenance.
High Interchangeability
Manufactured to DIN 963 / ISO 2009 standards with precise dimensions for reliable global replacement.
Common Questions
What is the difference between DIN 963 and DIN 965?
Same head shape, different drives: DIN 963 is slotted, while DIN 965 is cross-recessed (Phillips).
What are the common materials for DIN 963?
Carbon steel (Grades 4.8/8.8), Stainless steel (A2/A4), and Brass.
What is the countersunk head angle of DIN 963?
The standard head angle is 90 degrees.
Can DIN 963 screws be customized in size?
Yes. We support customized diameter, length, and thread specifications.
