Slooted Csk Din-963

Description

HBS Fasteners manufactures premium Slotted Countersunk Machine Screws in accordance with the DIN 963 standard (compatible with ISO 2009). These screws are the foundation of flush-mount fastening, used widely before the invention of cross-recess drives and still preferred today for their simplicity and ease of cleaning. The countersunk head is designed to fit into a pre-sinked hole, creating a smooth transition between the fastener and the workpiece. The single-slot drive allows for easy installation using any standard flat-blade screwdriver, making it a highly accessible choice for both industrial and general-purpose applications.

Technical Specifications

• Standard: Manufactured strictly to DIN 963 / ISO 2009 specifications.

• Head Style: 90-degree Countersunk (Flat Head) for flush installation.

• Drive Type: Single Slot for use with manual or powered flat-blade drivers.

• Thread Type: Precision-rolled Metric machine threads (Coarse pitch).

• Size Range: Available from M1.6 to M20 in a wide variety of lengths.

• Fitment: Designed to be used with a pre-countersunk hole or with a countersunk washer.

Material & Quality Excellence

• Stainless Steel: Available in A2 (304) and A4 (316) for excellent resistance to oxidation and chemical exposure.

• Other Materials: Produced in High-Grade Brass (for decorative and electrical use), Carbon Steel, and Alloy Steel.

• In-House Control: Produced using raw materials from our own wire drawing facility. We ensure the countersunk angle is exactly 90 degrees to provide full surface contact with the workpiece, preventing the screw from loosening under vibration.

• Surface Finishing: Options include Zinc Plating (Clear/Yellow), Nickel Plating, Chrome Plating, and Natural Brass finish.

Key Application Areas

• Woodworking & Joinery: Perfect for hinges and brackets where a protruding head would interfere with movement.

• Electrical Industry: Often used in switch plates and terminal boxes where a flat, easy-to-clean surface is required.

• Machine Construction: Ideal for securing thin plates and covers where space is limited and a flush finish is mandatory.

• Restoration Projects: The preferred choice for maintaining the authentic look of vintage machinery and classic hardware.