56 3 8 16 40 5 18 11 6 Nylon Locknut Nuts for Car | Cheap

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56 3 8 16 40 5 18 11 6 Nylon Locknut Nuts for Car
Factory-Direct Quality — No Compromise on Safety

⚡ Eliminate loosening failures, reduce warranty claims, and secure your automotive supply chain with ISO-certified nylon insert lock nuts — at prices that protect your margins.

📥 Get Free Quote in 24h + Sample Kit

⭐ 10,000+ automotive fasteners shipped daily · 30+ countries served

⚠️ The Hidden Cost of Cheap Lock Nuts

Every purchasing manager knows that a vibration-loosened fastener in a vehicle assembly line can trigger recall costs exceeding $2.3 million per incident. Yet many buyers still source 3 8 nylon lock nut lots from suppliers with inconsistent quality.

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Nylon ring detachment

Up to 12% failure rate in low-cost imports — test data 2025

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Thread tolerance drift

5 16 18 nylon insert lock nut batches vary by 0.08mm — causes assembly jams

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High shipping cost

Mixed orders from multiple suppliers inflate logistics by 18–25%

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Missing certifications

No ISO 9001 / IATF 16949 — reject at customs

👉 You need a single-source partner who delivers 2 56 lock nut to 5 8 11 nylon lock nut — all with traceable quality and factory-direct pricing.

🛠️ Boen Fastener — Your Precision Nylon Lock Nut Partner

From 6 32 nylon lock nut for electronics to 5 8 nylon lock nut for heavy-duty chassis, every lot is produced under ISO 9001:2025 controlled processes.

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Powerful Factory

12 high-speed cold forming lines · 8 million pcs/month capacity · 99.7% on-time delivery

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Quality Assurance

100% go/no-go thread gauge · nylon pull-out test per ASTM D5648 · salt spray & RoHS report

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OEM/ODM Design

Custom nylon color, patch position, drive type (hex/flange/12-point) · 7–12 days for samples

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High-Speed Delivery

Stock sizes ship in 3–5 days · mixed container consolidation saves up to 22% freight

📊 Nylon Lock Nut — Technical Specifications

All sizes meet IFI 100/107 and SAE J995 standards. Nylon insert temperature range: -40°C to +120°C.

Thread Size	Part Number	Hex Width (mm)	Height (mm)	Max Torque (N·m)	Stock Status
2 56 lock nut	BN-2-56-NL	4.76	3.18	1.2	✅ In Stock
3 4 nylon lock nut	BN-3/4-16-NL	19.05	12.70	48.5	✅ In Stock
3 8 16 nylon insert lock nut	BN-3/8-16-NL	15.88	9.53	18.0	✅ In Stock
3 8 24 nylon lock nut	BN-3/8-24-NL	15.88	8.73	16.5	📦 5–7 days
5 16 18 nylon lock nut	BN-5/16-18-NL	12.70	7.94	11.0	✅ In Stock
5 8 11 nylon lock nut	BN-5/8-11-NL	22.23	14.29	62.0	✅ In Stock
6 32 nylon lock nut	BN-6-32-NL	7.94	4.76	2.8	✅ In Stock
8 32 nylon lock nut	BN-8-32-NL	9.53	5.56	4.5	✅ In Stock
4 40 nylon lock nuts	BN-4-40-NL	6.35	3.97	1.8	✅ In Stock

🔍 Custom sizes (e.g., 5 16 nylon nuts, 5 8 nylon nut, 6 32 nylon nut) available with 1,500 pcs MOQ. Contact for lead time.

🚗 Automotive Applications That Demand Reliability

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Engine Mounts

Heat-resistant nylon lock holds torque after 500 thermal cycles

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Suspension Links

3 8 16 nylon lock nut used in control arm assemblies — zero loosening reported

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EV Battery Trays

Vibration-resistant 5 16 18 nylon insert lock nut for critical fastening

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Brake Calipers

Nylon insert prevents galling on stainless steel studs

💡 Case study: A US trailer manufacturer replaced their 3 8 nylon nuts source with Boen and reduced field failure by 74% in 6 months.

🏭 Factory Strength & Global Credentials

📍 Hanguang Industrial Park, Handan · 12 cold-forming lines

🔬 In-house tensile & salt spray lab · every batch tested

ISO 9001:2025 · CE · UL · FCC · RoHS · IATF 16949 (in progress)

Trusted by leading automotive & industrial brands

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💬 Real-time client conversations

📸 Fast response · real order updates · quality photos shared instantly

⭐ What Our Customers Say

Mark T.
Purchasing Manager, Midwest Auto Parts (USA)

"We switched our 3 8 16 nylon lock nut supply to Boen. Their consistent torque values cut our assembly line rejects by 63%. The 24h quote response is a game changer."

Elena V.
Supply Chain Director, EuroTruck GmbH (Germany)

"The 5 16 18 nylon lock nut batch we received had zero defects out of 50,000 pcs. Their ISO 9001 certification and full traceability give us confidence for our just-in-time lines."

Raj P.
Operations Manager, Bengaluru EV Startup (India)

"We needed 6 32 nylon lock nut and 8 32 nylon lock nut for battery modules. Boen delivered samples in 6 days and the price was 18% lower than our previous supplier. Excellent service."

✍️ About the Author

David Lin · Senior Fastener Engineer & Export Manager

David has 14 years of experience in the fastener industry, specializing in nylon insert lock nuts for automotive and heavy equipment. He leads Boen's technical team and has personally overseen over 2,000 export shipments to 30+ countries. He is a certified ISO 9001 internal auditor and a regular speaker at the China Fastener Expo.

❓ Frequently Asked Questions

🔹 What is the difference between 3 8 16 nylon insert lock nut and 3 8 24 nylon lock nut?

The main difference is thread pitch: 3/8-16 has 16 threads per inch (coarse), while 3/8-24 has 24 threads per inch (fine). Fine threads offer higher tensile strength and better vibration resistance in thin-walled applications. Both are available with nylon insert for locking.

🔹 Can you supply 5 16 nylon lock nut in stainless steel?

Yes, we offer 5 16 18 nylon insert lock nut in 304SS, 316SS, and 410SS. The nylon insert is also available in high-temperature PA66 grade. MOQ for stainless is 2,000 pcs per size, with lead time 7–10 days.

🔹 What is the minimum order quantity for 4 40 locknut or 6 32 lock nut?

For stock sizes like 4 40 nylon lock nuts and 6 32 nylon nut, MOQ is 1,000 pcs per size. For custom nylon color or special thread length, MOQ is 5,000 pcs. We also offer mixed-size containers to help you reach MOQ efficiently.

🔹 How do you ensure the nylon insert doesn't come off during installation?

Our nylon lock nuts undergo a push-out test per ASTM D5648. The nylon ring is mechanically locked into a undercut groove — typical retention force exceeds 3.5 N·m for 5 16 18 nylon lock nut size. We also perform 100% visual inspection on every batch.

🔹 What shipping options do you offer for 3 8 nylon lock nut orders to Europe?

We ship via DDP (Delivered Duty Paid) for EU buyers, which includes all customs clearance and VAT. For orders under 500 kg, we use air freight (5–7 days). For full container loads, sea freight (25–30 days) with free consolidation at our Handan warehouse.

🔹 Do you provide free samples for 5 8 11 nylon lock nut or 5 8 nylon nut?

Yes, we offer free samples for up to 10 pcs per size for qualified buyers. You only pay the shipping cost. Request your sample kit via the form below and we will arrange within 48 hours.

🔹 What payment terms do you accept?

We accept T/T (30% deposit, 70% before shipment), L/C at sight, and PayPal for small orders (under $2,000). For established clients, we can discuss net 30 terms after 3 successful orders.