Achieve industrial-grade aesthetics and mechanical clearance. Our DIN7991 Flat Head Bolts are designed for applications where the bolt head must disappear into the material. In the My Machines ecosystem, these are critical for mounting linear rail carriages, motor brackets, and bed plates where moving parts must glide over the fasteners.
Made from premium 304 Stainless Steel, these bolts offer exceptional strength and resistance to the typical humidity of a workshop environment. The 90-degree tapered head ensures a perfect self-centering fit when used with countersunk holes, distributing the clamping force evenly. Whether you are assembling the high-speed gantry of a My-CoreXY or finalizing the enclosure of your My-Cloner, the DIN7991 provides a sleek, low-profile result that standard bolts simply cannot match.
Why the DIN7991 is a “Must-Have” for your build:
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Collision Prevention: Ideal for areas with tight tolerances between moving and static parts.
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Aerodynamic & Clean: Reduces snag points and gives your machine a “factory-built” appearance.
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Self-Centering: The conical head naturally aligns the part with the bolt axis during assembly.
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Rust-Proof Performance: A2-70 grade steel ensures longevity in any Open Source Fabrication project.
Technical Specifications:
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Standard: DIN7991 / ISO 10642.
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Material: 304 (A2-70) Stainless Steel.
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Head Type: Flat / Countersunk (90°).
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Drive Type: Hex Socket (Allen).
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Thread: Metric (Full Thread).
Consultant’s Pro-Tip: When designing parts for the My Machines builds, remember to include a 90-degree countersink in your CAD (SolidWorks or FreeCAD). For 3D printed parts, ensure you have enough top/bottom layers so the tapered head doesn’t “sink” through the plastic. Use these bolts specifically on the top of your heatbed mounts to ensure your nozzle never hits a bolt head during the first layer!
📦 Package Includes: [X] Pieces of DIN7991 Flat Head Bolt (selected size).
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