Hi-Lok

Hi-Loks are high-strength aerospace fastening systems widely used in aircraft structures where lightweight construction, consistent clamp loads, and vibration resistance are required. Combining a precision pin and threaded collar, Hi-Loks provide reliable fastening while reducing installation time compared to traditional bolts and nuts. A Hi-Lok pin and collar have to match in diameter, shank size, and load type. See how they pair and how to check an installed fastener. Commonly found in airframes, wings, fuselage assemblies, and structural aerospace applications, Hi-Loks are trusted throughout the aviation industry. Monroe Aerospace supplies a comprehensive selection of Hi-Loks in various materials, sizes, and finishes, delivering quality aerospace fasteners, competitive pricing, expert technical support, and dependable worldwide distribution.

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