Standard bolts often fall short when building complex DIY CNC frames or multi-layered toolheads. Our DIN912 Ultra Long Allen Bolts are the specialized answer for makers who refuse to compromise on structural integrity. In the My-CoreXY and My-Cloner ecosystem, these bolts are essential for through-hole mounting across thick aluminum profiles or large 3D printed assemblies.
Crafted from 304 (A2-70) Stainless Steel, these bolts offer a superior balance of tensile strength and environmental protection, ensuring they won’t rust even in humid workshop conditions. The deep hex socket (Allen) allows for a secure grip with your hex keys, preventing stripping during high-torque applications. Whether you are creating a custom laboratory jig or a heavy-duty Open Source Fabrication machine, these extra-long bolts provide a clean, professional, and reliable fastening method.
Why Ultra Long Bolts are a “Must-Have” for advanced builds:
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Deep Structural Fastening: Ideal for joining large sections of 2040 or 4040 profiles.
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Clean Aesthetics: Avoid messy couplings or threaded rods by using a single, continuous bolt.
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Precision Threads: Rolled threads ensure a smooth fit even at lengths exceeding 150mm.
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Consistent Head Profile: DIN912 cylindrical head for a flush or recessed finish in your CAD designs.
Technical Specifications:
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Standard: DIN912 / ISO 4762.
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Material: A2-70 (304) Stainless Steel.
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Thread Type: Metric (Full or Partial thread depending on length).
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Drive Type: Hex Socket (Allen).
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Available Diameters: M2, M3, M4, M5, M6, M8.
Consultant’s Pro-Tip: For My Machines projects using lengths over 100mm, always ensure your drill holes are perfectly straight. At these lengths, even a 1-degree tilt will prevent the bolt from exiting correctly on the other side. When fastening into 3D printed parts, use a Flat Washer on both ends to prevent the head from sinking into the plastic under high tension.
📦 Package Includes: [X] Pieces of DIN912 Ultra Long Bolt (selected size).
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