Construction fasteners must match the joint, load, material, and jobsite environment. A correct fastener is not only the right size. It must also have the correct grade, thread, coating, washer support, and installation method.
For project buyers, the safest rule is simple: specify the full fastening assembly before requesting a quote.
Main Fasteners Used in Construction
Bolts for Steel and Equipment Connections
Bolts are used in steel frames, base plates, brackets, platforms, machinery supports, and temporary structures. Common construction bolts include hex bolts, heavy hex bolts, flange bolts, carriage bolts, and structural bolts.
| 螺栓类型 | 典型用途 | Key Buying Point |
|---|---|---|
| 六角螺栓 | 一般钢结构连接 | Grade, length, thread, coating |
| 重型六角螺栓 | Structural or heavy-duty joints | 标准、螺母、垫圈匹配 |
| 法兰螺栓 | Brackets and frame assemblies | 轴承表面和锯齿 |
| 马车螺栓 | Timber or slotted holes | Neck type and installation direction |
| 定制螺栓 | Project-specific parts | Drawing, tolerance, coating |
买家可以评论 螺栓产品 和 标准紧固件 when preparing regular construction RFQs.
Anchors for Concrete Fixing
Selection Depends on Concrete and Load
Anchors transfer load into concrete or masonry. They are used for base plates, pipe supports, machinery bases, handrails, brackets, and structural attachments.
Common types include wedge anchors, sleeve anchors, drop-in anchors, chemical anchors, expansion anchors, and cast-in anchor bolts.
Anchor selection must confirm:
- 混凝土强度
- 孔径和深度
- 埋置深度
- 边距
- 锚杆间距
- Tension, shear, or combined load
- Cracked or uncracked concrete condition
Anchor capacity should never be estimated from diameter alone. Installation quality directly affects performance.
Washers for Load Distribution
Small Part, Critical Function
Washers distribute clamp force, protect contact surfaces, reduce embedment, and help maintain preload. In structural or high-strength joints, washer hardness matters.
| 垫圈类型 | 主要功能 | Common Construction Use |
|---|---|---|
| 平垫圈 | 负载分布 | 一般螺栓连接 |
| 硬化垫圈 | Supports high preload | 结构螺栓 |
| 方垫圈 | Larger bearing surface | Timber and base plates |
| 弹簧垫圈 | 轻型防松支撑 | Non-critical joints |
| 楔形锁紧垫圈 | 抗振性 | Machinery and dynamic joints |
买家可以评论 洗涤产品 匹配螺栓、螺母和垫圈时。
材料、牌号和涂层
Match the Site Condition
Construction fasteners may be carbon steel, alloy steel, stainless steel, or coated steel. Load-bearing joints may require 高强度紧固件.
Outdoor projects usually need corrosion protection. Options include zinc plating, hot-dip galvanizing, zinc flake coating, or stainless steel. For corrosion-focused orders, compare 各种涂层紧固件.
RFQ Checklist for Construction Fasteners
Provide these details before quotation:
- 产品类型及标准
- 直径、长度、螺距和螺纹长度
- 材质及强度等级
- 表面处理或涂层
- 配套螺母和垫圈
- Load condition and installation location
- 所需证书或检验报告
- 包装和标签要求
For special dimensions or drawing-based parts, use 定制非标紧固件. For full project sourcing, review all 紧固件产品.
最终建议
Construction fasteners should be selected as a system. Bolts, anchors, washers, nuts, coatings, documents, and installation conditions must match the real jobsite requirement.
A complete RFQ reduces wrong delivery, failed installation, and costly project delays.
English 
Español 
Français 
Español de México 
العربية 
Deutsch 
Русский 
Tiếng Việt 
Bahasa Indonesia 
Italiano 
简体中文