M3 x 0.5 x 20 mm Flat Spanner-Drive Security Machine Screws, 100-Pack

These M3 machine screws are designed for buyers who need a more secure fastening option than ordinary screw-drive hardware. Their spanner drive helps deter removal with standard screwdrivers, while the flat head supports a clean, flush-installed appearance.

Each screw has an M3 x 0.5 thread and a 20 mm length, with an 18-8 stainless steel construction and flat spanner head. The spanner drive requires a matching driver bit and is designed for positive tool engagement, torque transfer, and reduced slippage during installation. Flat heads install flush with metal surfaces or can be countersunk in softer materials. Pack contains 100 screws.

Key Features:

• Spanner-drive design: Helps prevent removal using ordinary screwdrivers for an added level of security.
• Matching-bit operation: Uses a dedicated matching driver bit for controlled installation.
• Flat head profile: Installs flush with metal surfaces for a clean finished appearance.
• 18-8 stainless steel: Provides stainless steel construction for the specified fastening application.
• 100-piece pack: Supplies multiple screws for projects requiring consistent hardware.

Choose these flat-head spanner-drive machine screws when your application calls for M3 x 0.5 x 20 mm security fasteners and a flush finish. Be sure to use the required matching driver bit for installation.

No additional information available.