PRORAJE Acorn Nuts Stainless Steel M4 (Pack of 20) | Hexagonal Cap Nut DIN 1587 | Stainless Steel A4-080 (V4A/AISI 316) | Dome Protection Screws Diameter 4 mm

• Box contents: 20 pieces M4 cap nuts made of high-quality A4 stainless steel. In accordance with DIN 1587
• Protection and safety: the closed dome structure (blind) completely protects the end of your screws and threaded rods. Prevents premature oxidation, dust accumulation and moisture. Increased safety: eliminates the risk of cuts or snagging due to protruding threads, ideal for passage areas or play structures.
• 【A4 Stainless Steel (AISI 316)】Our hex nuts are designed to last and offer exceptional corrosion and rust resistance. Marine quality, acid and salt resistant. Ideal for outdoor use, humid environments or marine applications. Will not rust like conventional galvanised steel.
• Easy installation: designed for optimal tightening with a standard wrench or socket no. 7 on screws or threaded rods with a diameter of 4 mm. The deep dome allows it to cover a sufficient threaded rod length for aesthetic and robust mounting.
• PRORAJE expertise - Specialist in stainless steel fittings, Proraje is committed to complying with industry standards. We offer a complete range of cap nuts → M3 / M4 / M5 / M6 / M8 / M10 / M12 / M14 / M16 / M18 / M20 / M22 / M24 / M30 in A2 and A4 nuances. Our screws / washers / nuts / choice of professionals and demanding DIY enthusiasts for boating, DIY, construction and industry.

Optimise your assemblies with PRORAJE professional quality. Whether you are an industrial professional, a craftsman or a demanding DIY enthusiast, finishing your assemblies comes first. Proraje Stainless Steel Cap Nut is the ideal technical solution for aesthetics, durability and safety. STAINLESS STEEL KNOWLEDGE Our nuts are manufactured to strict precision standards (DIN 1587). Unlike galvanised or galvanised steel fasteners that change over time, the stainless steel selected by PRORAJE offers structural resistance to corrosion. → A2 Series (AISI 304) - Ideal for interior design, carpentry and standard outdoor use. → A4 Series (AISI 316): marine grade, essential for salt environments, pools or corrosive industrial environments. SAFETY & WORKMANSHIP WITH SPHERE SHELL The hexagonal shape (dome) is not only an aesthetic choice. It plays an important role of the protective shield → Thread protection: it insulates the end of the screw or threaded rod from external influences (dust, moisture, shock), thus facilitating future disassembly. User Safety: By covering the protruding and potentially sharp parts of the threaded rods, it eliminates the risk of injury caused by contact or snagging clothing. A COMPLETE RANGE FOR ALL YOUR PROJECTS The Proraje screws are designed to be suitable for a wide range of applications: boating, car renovation, decking, model making, or heavy construction. Each nut guarantees a smooth thread and a secure hold with standard clamping tools. About PRORAJE - Recognized specialist in stainless steel fasteners, the Proraje brand is committed to the conformity and durability of its products. Our mission is to provide high-precision hardware components that meet the most stringent industry standards.