Rusan Screw allen M4x25

• M4 x 25 format: This screw is sized for mounting jobs that require an Allen-head M4 x 25 fastener, making it a practical replacement part when a damaged or missing screw would otherwise stop a mount or accessory from being used.
• Allen-drive head: The internal hex drive allows controlled tightening with the correct tool, which helps achieve a secure fit and reduces the chance of slipping compared with improvised fastening methods.
• Made for Rusan mounting hardware: As part of the Rusan Accessories range, it suits users who want to keep Rusan mounting systems serviceable with matching spare parts rather than generic substitutes.
• Compact essential spare: A small screw can be critical in the field or on the bench; keeping the correct replacement on hand helps avoid downtime during scope-mount maintenance or reassembly.
• Black finish: The black exterior blends neatly with most mounts and mounting accessories, helping the hardware remain visually discreet on sporting and shooting setups.

About the Rusan Accessories Series

Rusan Accessories is the supporting hardware range behind the company’s broader mounting and adapter systems. The series is closely associated with adapters and reduction rings for night-vision and thermal clip-on devices, giving users the small but essential parts needed to configure, maintain, or adapt an optic setup correctly. Within the wider Rusan catalog, this family sits alongside the brand’s scope mounts, rings, and rails, serving shooters who need dependable interface components rather than complete mounting assemblies.

A defining characteristic of the series is its focus on system compatibility. Rusan offers both conventional and modular adapter systems, and the accessory line supports that approach with spare parts and connection components that help one device work across multiple rifles or optics where the system allows. In practical terms, that makes the series relevant to hunters and shooters who rely on clip-on equipment and want a setup that can be maintained properly over time. The emphasis is not on cosmetic add-ons, but on the small mechanical parts that keep a mounting solution functional, repeatable, and ready for regular use.

About the Rusan Screw allen M4x25

The Rusan Screw allen M4x25 is a straightforward but important mounting accessory intended for users who maintain or restore Rusan mounting hardware. In any optic-mounting system, the smallest fastening parts often determine whether the assembly remains secure, aligned, and usable. A correctly sized M4 x 25 Allen screw is therefore not just a generic consumable; it is the kind of component that helps preserve the proper fit of a mount or accessory designed around that thread and length.

The Allen-head configuration is especially practical for mounting work because it allows controlled tool engagement in confined spaces where larger external heads can be awkward. That matters on scope mounts and related accessories, where access can be limited and clean, even tightening is important. Used as a replacement screw, it helps return the assembly to service without resorting to mismatched hardware that may compromise fit or appearance.

Its black finish keeps the screw visually consistent with most modern mounts and rails, which is useful on hunting optics and shooting equipment where low-visibility hardware is preferred. As part of the Rusan Accessories line, this screw is best understood as a maintenance and support item: small in size, but essential for keeping compatible mounting components complete, secure, and ready for use.

About Rusan

Rusan-Mikron is a Croatian manufacturer based in Marija Bistrica, with roots in the Rusan family’s metalworking business dating to 1983. Željko Rusan opened a gunsmith shop in 1986, and the company began producing scope mounts in 1993. That background in machining and gunsmithing remains central to the brand’s identity today.

The company specializes in scope mounts, scope rings, Picatinny rails, and firearm tuning products, and it is also well known for adapter systems for night-vision and thermal-imaging devices. Rusan introduced its clip-on sight adapter clamp in 2009, a product category that became an important part of its international profile. This combination of traditional mounting hardware and modern clip-on adapter design makes Rusan particularly relevant to shooters who need precise mechanical interfaces between firearms, optics, and observation devices.

Main Features

• Manufacturer: Rusan
• Series: Rusan Accessories
• Color: Black

Warranty

2 years. The Rusan Screw allen M4x25 is covered by a 2-year warranty.