DIN 7981 C-H ST Self-Tapping Screw for Lower Rail End Assembly 2.9 x 9.5 mm / pce

Product

A self-tapping assembly screw designed for lower rail end fittings, conforming to DIN 7981 C-H standard, measuring 2.9 x 9.5 mm, sold per unit for precise and reliable mechanical fastening applications.

Specifications

• Manufactured to DIN 7981 C-H standard, ensuring consistent thread form and dimensional accuracy
• ST designation indicates self-tapping steel construction, providing strong thread engagement in sheet metal and thin materials
• Dimensions: 2.9 mm diameter x 9.5 mm length, suited for compact assembly points on lower rail end fittings
• Cross recessed pan head (H) drive for compatibility with standard Phillips screwdrivers and power tools
• Steel material offers mechanical resistance and durability in structural assembly contexts

Usage

Insert the screw into the designated lower rail end fitting assembly point using a Phillips screwdriver or compatible power tool. The self-tapping thread cuts directly into the receiving material, creating a secure and stable fastening without requiring a pre-tapped hole.

FAQ

1. What does DIN 7981 C-H mean? — DIN 7981 C-H refers to a standardized self-tapping screw with a pan head and cross recess, defined by the German Institute for Standardization, ensuring dimensional and mechanical consistency.
2. Does this screw require a pre-drilled hole? — A pilot hole is recommended for optimal results, but the self-tapping design allows the screw to form its own thread in thin sheet metal or similar materials.
3. What drive type is compatible with this screw? — The H designation indicates a Phillips cross recess drive, compatible with standard PH1 or PH2 screwdrivers depending on fit.
4. What material is this screw made from? — The screw is made from steel, as indicated by the ST designation in the product name, providing solid mechanical strength for assembly tasks.
5. Is this screw sold individually or in bulk? — This screw is sold per unit, as indicated by the per piece designation in the product description.

mvm-dt-2026-03