Structural & Heavy Duty Bolts for Building & Const。Structural & Heavy Duty Bolts for Building & Constの完全ガイド - 仕様、用途、アフリカ市場向けB2B輸出のサプライヤー選定。
Fixing Bolts for Building Curtain Wall Systems
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Heavy Duty Bolts for Container Connections
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Extra Large & Heavy Duty Hex Bolts: Dimensions and Selection
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Hex Nuts for Steel Structure Building Connections
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Heavy Duty Bolt Selection by Application
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| Application | Bolt Size | Grade | Coating | Nut Type |
|---|---|---|---|---|
| Curtain Wall Perimeter | M12-M16 | 8.8 or 10.9 | HDG | Heavy Hex + Flat Washer |
| Steel Frame Connection | M20-M30 | 10.9 (EN 14399) | HDG | Heavy Hex Nut |
| Container Corner Locking | M12-M16 | 8.8 | HDG + ZFP | Standard Hex + SW |
| Bridge Structural | M24-M36 | 10.9 (ASTM A325) | HDG | Heavy Hex A563 DH |
| Industrial Plant Equipment | M16-M24 | 8.8 or 10.9 | HDG | Heavy Hex Nut |
| Pre-Engineered Building | M12-M22 | 8.8 | HDG or ZP | Standard Hex |
Frequently Asked Questions
See frequently asked questions below.
What is the difference between heavy hex and standard hex bolts?
Heavy hex bolts have a larger bearing surface (wider across flats and a thicker head) than standard hex bolts. This provides better load distribution for structural connections with oversized holes.
What bolts are used for curtain wall fixing?
Curtain wall fixing typically uses M12 or M16 Grade 8.8 HDG hex bolts or specialized stainless steel刺客螺栓 with nylon anchors for concrete backup. Spec depends on wind load calculations.
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