Recknagel Countersunk Screw with Torx Drive M4x20

• Countersunk Head Design: The countersunk profile lets the screw sit flush with the mounting surface, helping maintain a clean fit and reducing the chance of protruding hardware interfering with adjacent scope-mount components.
• Torx Drive: The Torx interface gives the tool a more secure purchase than many conventional screw heads, which helps apply installation torque more consistently and lowers the risk of slipping during assembly.
• M4x20 Format: This specific thread and length combination suits scope-mount and mounting-accessory applications that require a longer M4 countersunk screw, making it useful for replacement, repair, or workshop stock.
• Original Recknagel Spare Part: As a genuine Recknagel accessory, it is intended to match the company’s mounting-system standards, which is important when maintaining fit and function in precision mounting setups.
• Useful for Gunsmithing and Maintenance: Small mounting parts matter in practice; having the correct screw type on hand helps keep hunting and sporting optics mounts serviceable without improvised hardware.

About the Recknagel Accesories Series

Recknagel Accesories belongs to a long-established product family shaped by Recknagel’s origins in 1867 and its continued focus on practical hardware for hunting firearms and workshop use. Within the company’s broader catalog, this series sits alongside scope mounts and sighting components, covering the smaller but essential parts that support installation, maintenance, and repair. That makes it relevant not only to hunters, but also to gunsmiths and anyone responsible for keeping mounting systems correctly assembled.

The series is defined less by one single product type than by its role in the overall mounting ecosystem. Accessories, spare parts, and workshop-oriented components help maintain compatibility across hunting and sporting firearms, while supporting the precise fit expected from quality mounting hardware. In the wider Recknagel range, these products complement mounts, Picatinny rails, and related components, giving users access to the small parts needed to keep complete systems in service. The result is a practical accessory line built around maintenance, replacement, and correct installation rather than cosmetic add-ons.

About the Recknagel Countersunk Screw with Torx Drive M4x20

The Recknagel Countersunk Screw with Torx Drive M4x20 is a purpose-specific mounting accessory intended for situations where the correct screw geometry matters as much as the thread itself. In scope-mount assemblies and related hardware, a countersunk screw is used when the head must sit flush in the mating surface. That flush fit helps preserve the intended contact between parts, avoids snag points, and keeps the assembly neat and mechanically consistent.

The practical advantage of the Torx drive is secure tool engagement during installation and removal. For workshop use or routine maintenance, that means better control when tightening and less chance of damaging the screw head through cam-out. On small mounting components, this matters because clean, repeatable fastening helps protect both the screw and the surrounding mount surfaces.

Its M4x20 dimensions make this screw suitable where an M4 thread and a 20 mm length are required in a countersunk format. As an original Recknagel part from the company’s mounting-accessory range, it is a sensible choice for replacing worn or missing hardware in compatible scope-mount systems. For gunsmithing benches, service kits, or maintenance of hunting optics mounts, it fills a simple but important role: restoring the assembly with the correct fastener rather than relying on a near match that may compromise fit.

About Recknagel

Recknagel is a German manufacturer focused on firearm and riflescope mounting systems, sights, and hunting accessories. The company’s history began in 1867, when Adolf Recknagel started producing firearm sights in Albrechts near Suhl, Thuringia. Over time, the range expanded to include scope mounts, Picatinny rails, sights, triggers, safeties, and other hunting-related components, reflecting a strong specialization in the mechanical interface between firearm and optic.

The company later relocated from Schweinfurt to Bergrheinfeld in 2006, and in 2010 it introduced the ERATAC line for tactical mounts and accessories. In 2022, Recknagel was acquired by Dr. Moritz Fehrer. This background is relevant to products like mounting screws and spare parts because Recknagel’s reputation has been built not only on complete mounts, but also on the precision hardware that supports reliable installation and long-term serviceability.

Main Features

• Manufacturer: Recknagel
• Series: Recknagel Accesories
• Product Type: Countersunk screw with Torx drive
• Thread / Length: M4x20
• Category: Mounting accessory
• Suitable For: Scope mount screws and spare-parts use
• Warranty: 2 years

Warranty

Recknagel provides a 2-year warranty for this product. This covers the accessory as a genuine manufacturer component within the company’s mounting-accessory range.