Description
Technical Parameters
Screw Spike Commercial & Procurement Specification
| Category | Specification | Purpose / Implication |
|---|---|---|
| Product Identification | • Commercial Name: Screw Spike, Threaded Stud • Common Sizes: M24x180, M22x170, M20x160 • Part Number: [e.g., SS-M24-180-ZN]** |
Ensures precise ordering and avoids compatibility issues. |
| Pricing Basis | • Unit of Sale: Per piece (pc) • Minimum Order Quantity (MOQ): e.g., 5,000 pcs • Key Cost Drivers: Material grade, coating type (Geomet vs Zinc), order volume. |
Clarifies negotiation terms and cost structure. |
| Compliance & Documentation | • Primary Standards: EN 15048-1, ISO 898-1, or client-specific standards. • Mandatory Certs: 3.1 Material Certificate, Surface Treatment Certificate. |
Required for project approval and ensures quality compliance. |
| Warranty & Lead Time | • Standard Warranty: 2 years against corrosion and manufacturing defects. • Standard Lead Time: 4-6 weeks for standard types. |
Manages project scheduling |
Screw Spike Quality Control Parameters
| Inspection Category | Parameter | Standard / Requirement |
|---|---|---|
| Dimensional Check | Thread Pitch & Major Diameter | Go/No-Go gauge check per ISO 965-2 |
| Overall Length | Tolerance: ±2 mm | |
| Head Dimensions | As per designated drawing | |
| Mechanical Properties | Tensile Strength | ≥ 500 MPa |
| Hardness (HRB) | 70-85 HRB | |
| Proof Load | 45 kN for M24 (typical) | |
| Coating Quality | Coating Thickness | Geomet: 5-8 μm; Hot-Dip Galvanizing: 50-70 μm |
| Salt Spray Test | Geomet: ≥ 500 h; Galvanizing: ≥ 72 h (per ASTM B117) |
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