Tech-dat/tech-dat.md
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- [[fab-mechanics-dat]] - [[fab-tools-mechanical-dat]] - [[CAD-dat]] - [[CNC-dat]] - [[screw-dat]]
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-- [[mechanical-structure-dat]] - [[tube-dat]] - [[tube-bend-dat]]
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+- [[mechanical-structure-dat]] - [[tube-dat]] - [[tube-bend-dat]] - [[structure-dat]] - [[structure-t-dat]]
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- [[openpnp-dat]] - [[3d-printer-dat]] - [[pnp-machine-dat]] - [[glue-dat]] - [[heatsink-dat]]
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fab-materials-dat/fab-materials-dat.md
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-- [[product-dat]] - [[engineering-dat]] - [[fab-mechanics-dat]] - [[fab-dat]] - [[fab-materials-dat]]
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+- [[product-dat]] - [[engineering-dat]] - [[fab-mechanics-dat]] - [[fab-dat]] - [[fab-materials-dat]] - [[wood-dat]]
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- [[magnetic-dat]]
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+- [[wood-dat]]
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+
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## ref
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- [[fab-mechanics-dat]]
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\ No newline at end of file
fab-materials-dat/glass-dat/glass-dat.md
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# glass-dat
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+- [[fab-materials-dat]] - [[glass-dat]]
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+
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## Float High-Definition Glass
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fab-materials-dat/metal-dat/metal-dat.md
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# metal-dat
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+- [[fab-materials-dat]] - [[metal-dat]]
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- [[brass-copper-dat]]
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- [[Shaft-dat]]
fab-materials-dat/plastic-dat/plastic-dat.md
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# plastic-dat
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+- [[fab-materials-dat]] - [[plastic-dat]]
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- [[Heat-Set-Insert-dat]]
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- [[glue-waterproof-dat]]
fab-materials-dat/wood-dat/2026-06-30-15-49-08.png
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Binary files /dev/null and b/fab-materials-dat/wood-dat/2026-06-30-15-49-08.png differ
fab-materials-dat/wood-dat/wood-dat.md
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+# wood-dat
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+- [[fab-materials-dat]] - [[wood-dat]]
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+common diameter
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+![](2026-06-30-15-49-08.png)
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+## ref
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fab-mechanics-dat/fab-mechanics-dat.md
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# fab-mechanics-dat
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-- [[fab-electronic-Tools-dat]] - [[fab-mechanics-dat]]
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+- [[fab-Tools-electronic-dat]] - [[fab-mechanics-dat]]
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- [[product-dat]] - [[engineering-dat]] - [[fab-mechanics-dat]] - [[fab-dat]] - [[fab-materials-dat]]
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+- [[structure-t-dat]] - [[structure-dat]]
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## power-tools
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- [[fab-drill-dat]] - [[drill-electric-dat]] - [[drill-bit-dat]] - [[tools-power-dat]]
fab-mechanics-dat/mechanical-parts-dat/bolt-dat/bolt-dat.md
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- [[bolt-dat]] - [[mechanical-parts-dat]] - [[screw-dat]] - [[thread-dat]] - [[nut-dat]] - [[washer-dat]]
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+- [[bolt-t-dat]] - [[bolt-dat]]
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## bolt vs screw
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The difference between a **bolt** and a **screw** is one of those things that seems obvious until you try to define it. In fact, even hardware stores and engineers sometimes mix them up because they look so similar.
fab-mechanics-dat/mechanical-parts-dat/bolt-dat/bolt-t-dat/bolt-t-dat.md
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+# bolt-t-dat
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+- [[bolt-t-dat]] - [[bolt-dat]] - [[mechanical-parts-dat]] - [[screw-dat]] - [[thread-dat]] - [[nut-dat]] - [[washer-dat]]
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+- [[structure-t-dat]] - [[bolt-t-dat]]
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+An L-bolt (or L-shaped anchor bolt) is a heavy-duty fastener primarily used to anchor structural elements, steel columns, or sill plates to concrete or masonry. The 90-degree bend is embedded in the concrete to prevent the bolt from pulling out under tension.
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+Key Specifications
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+* **Sizes:** Commonly available in diameters ranging from M6 to M36 (or 1/2" to 1-1/4") depending on load requirements.
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+* **Materials:** Manufactured from mild steel, high-tensile steel, or corrosion-resistant 304/316 stainless steel.
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+* **Finishes:** Available as plain, electro-galvanized, or hot-dipped galvanized (HDG) for outdoor or corrosive environments.
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+## 4. Primary Applications
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+* **Structural Steel Columns:** Securing the baseplates of steel structural beams to concrete foundations.
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+* **Light Poles & Signage:** Anchoring highway sign structures, traffic lights, and street lamp posts.
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+* **Equipment/Machinery Foundations:** Bolting down heavy industrial manufacturing equipment to prevent vibration-induced shifting.
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+* **Sill Plate Anchoring:** In residential construction, securing wood sill plates to concrete slab foundations.
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+## ref
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+
fab-mechanics-dat/mechanical-structure-dat/mechanical-structure-dat.md
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- [[onshape-dat]] - [[CAD-dat]] - [[mechanical-structure-dat]]
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-- [[structure-dat]] - [[engineering-dat]]
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+- [[structure-dat]] - [[structure-t-dat]] - [[engineering-dat]]
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common structure: - [[sheet-dat]] - [[frame-profile-dat]] - [[shell-case-dat/shell-dat]]
fab-mechanics-dat/mechanical-structure-dat/structure-dat/structure-dat.md
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# structure-design-dat
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+- [[structure-t-dat]] - [[structure-dat]]
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+- [[mechanical-structure-dat]] - [[shaft-dat]] - [[Shaft-Cross-Connector-dat]]
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+
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-- [[mechanical-structure-dat]] - [[shaft-dat]] - [[Shaft-Cross-Connector-dat]] - [[structure-t-dat]] - [[structure-dat]]
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## holder
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fab-mechanics-dat/mechanical-structure-dat/structure-dat/structure-t-dat/structure-t-dat.md
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# structure-t-dat.md
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-- [[shaft-dat]] - [[Shaft-Cross-Connector-dat]]
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\ No newline at end of file
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+- [[shaft-dat]] - [[Shaft-Cross-Connector-dat]] - [[structure-t-dat]]
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+- [[bolt-t-dat]] - [[bolt-dat]]
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+## ref
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+