Screw Lock

🔒 Screw Locks & Fastening Hardware (Hardware Articles of Base Metal)

🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Precision Classification Strategy
📌 I. Product Definition & Classification: What Exactly is a "Screw Lock"?

The term "Screw Lock" in international trade is ambiguous and can refer to two entirely different categories of products based on function and structure. Misclassification leads to massive tariff discrepancies (from 0% to 78.9%).

You must distinguish between: 1. Furniture/Drawer Locks: Mechanical locking devices operated by a key or combination, often used in chests, drawers, or cabinets. These are classified under Chapter 83. 2. Fasteners (Washers/Nuts): Mechanical components like helical spring washers or lock nuts that prevent screws/bolts from loosening. These are classified under Chapter 73 (Iron/Steel Articles).

⚠️ Critical Distinction Point:
- If it has a keyhole, cylinder, or bolt mechanism for securing access → It is a Lock (8301).
- If it is a flat or spring ring used under a nut/head to prevent vibration loosening → It is a Washer (7318).
- If it is a general machinery part (e.g., a bracket or housing without electrical features) → It may be 8487.

📦 II. HS Code Classification Details (2026 Latest Tariff Authority)

🔍 Key Reminder:
- "Screw Lock" as a Lock: Must use 8301. Tax rate is 0% (Base) + 0% (Additional). Total: 0%.
- "Screw Lock" as a Washer/Fastener: Must use 7318. Tax rate is 0% (Base) + 50% (Steel/Aluminum/Copper Additional). Total: 50%.
- "Screw Lock" as Generic Part: If misclassified as 8487, the tax explodes to 78.9%. Avoid this unless you are certain it's a specialized mechanical part.

💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes)

✅ Applicable Country: USA
✅ Origin: China (CN)
✅ Effective Date: Current US Trade Regulations (Section 301 & IEEPA)

🎯 1. 8301.30.00.60 & 8301.30.00.90 —— Furniture Locks (Key/Combination)

📌 Explanation:
- Locks of base metal for furniture are generally duty-free under the current US Harmonized Tariff Schedule (HTSUS) base rates. - Crucially, they are NOT subject to the 25% or 50% Section 301/IEEPA additional tariffs that apply to many steel/iron products. - This is the LOWEST TAX scenario. Ensure the product is clearly a "lock" with a locking mechanism.

🎯 2. 7318.21.00.30 & 7318.21.00.90 —— Lock Washers (Helical & Other)

📌 Explanation:
- While the base rate is 0%, Steel, Aluminum, and Copper products from China are subject to a 50% additional tariff under recent executive actions (IEEPA). - This applies to helical spring lock washers (7318.21.00.30) and other lock washers (7318.21.00.90). - Total Cost Impact: 50% duty on the CIF value. This is a significant cost driver.

🎯 3. 8487.90.00.80 —— Other Machinery Parts (High Risk)

📌 Explanation:
- This is the DEFAULT trap. If a "screw lock" (if interpreted as a generic metal part) is not clearly identified as a "lock" (8301) or "washer" (7318), customs may classify it here. - 78.9% is an extremely high effective tax rate. - Recommendation: Always argue for 8301 or 7318 classification with clear product descriptions.

🛠️ IV. Clearance Practical Advice (Battle-Tested Pitfall Avoidance)

✅ 1. Document Checklist (Non-Negotiable)

✅ 2. Declaration Strategy (Key Mantra)

🔥 “Lock is Zero, Washer is Fifty, Part is Seventy-Eight!”

📌 Crucial Tip:
- If the product is a key-operated device, you MUST classify it under 8301.
- If it is a non-key, friction-based component, it is a washer/fastener (7318).
- Never use "Screw Lock" as a standalone HS Code description. Be specific.

✅ 3. Special Cases

🌍 V. Global Market Clearance Comparison (2026 Latest)

📌 Conclusion:
- USA is the most complex due to Section 301/IEEPA add-ons.
- Locks (8301) are duty-free in the USA (0%).
- Washers (7318) are heavily taxed in the USA (50%).
- EU/UK have lower base duties but similar structural classifications.

📌 VI. Common Errors & Pitfall Guide (Lessons Learned)

❌ Error 1: Calling a "Spring Washer" a "Screw Lock" and declaring it as 8301.
👉 Consequence: Customs audit reveals it’s a washer → Back taxes + 50% penalty + 50% duty!

❌ Error 2: Calling a "Cam Lock" a "Machinery Part" (8487).
👉 Consequence: Unnecessary 78.9% tax on a product that could be 0%.

❌ Error 3: Mixing Locks and Washers in one SKU "Screw Lock Kit".
👉 Consequence: Customs may apply the higher tax rate (50% or 78.9%) to the entire value of the shipment.

❌ Error 4: Ignoring material composition for Washers.
👉 Consequence: If it’s aluminum, it still gets 50% in the US. If it’s plastic, it should not.

✅ Correct Practice:

“Zinc-Plated Steel Cam Lock, Key Operated, for Wooden Furniture, Model: CAM-100”
→ HS: 8301.30.00.60 | Tax: 0%

“Helical Spring Lock Washer, Steel, 1/4" Diameter, Zinc Plated”
→ HS: 7318.21.00.30 | Tax: 50%

🎯 VII. Conclusion: Precision Classification Saves Money!

🎯 Remember the Mantra:

🔹 “Keys and Cylinders = 8301 (0%)”
🔹 “Springs and Rings = 7318 (50%)”
🔹 “Generic Parts = 8487 (78.9%) – AVOID!”

📌 Pro Tip:
If your "Screw Lock" is actually a plastic component, classify under Chapter 39 to avoid the 50% steel surcharge. Always specify the material and function in the commercial invoice.

📣 Immediate Action:

📞 Contact your broker with clear photos.
📝 Specify "Lock" vs. "Washer" in all shipping documents.
🚀 Save 50-78% in duties by accurate classification!

✨ Professional Clearance Starts with Accurate Classification!
💼 Every percent counts in your supply chain costs!