**Product Specifications:**
- **Model NO.:** LKOX
- **Application:** Structural Application
- **Finish:** Plain, Zinc, HDG...
- **Sample:** Free (If in Store)
- **Market:** Global
- **Trademark:** LK
- **Specification:** DIN, ANSI, ISO and Non-Standard
- **Origin:** China
- **HS Code:** 7318
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**F1852 Twist Off Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 120/105KSI Minimum Tensile Strength**
**Description:**
The F1852 Twist Off Type Tension Control Bolt/Nut/Washer Assemblies are made of high-strength steel that is heat-treated to meet a minimum tensile strength of 120/105 KSI. These assemblies are designed for structural applications where precise tension control is required.
**Material:**
Steel – known for its durability and strength, ideal for heavy-duty structural use.
**Surface Finish:**
Available in plain, hot-dipped galvanized (HDG), zinc-plated with chromium, and RoHS-compliant options to suit various environmental conditions and customer preferences.
**Size Range:**
From 1/2" to 2-1/2" in diameter (M12 to M64).
**Length:**
Up to 500mm, suitable for a wide range of structural projects.
**Images:**
[Image 1](http://i.bosscdn.com/uploads/cb/db/c0/4a072ddd1da255845b4badb5be.jpg)
[Image 2](http://i.bosscdn.com/uploads/02/9e/98/e2f08fa4cfd388d1877f6e7bc2.jpg)
[Image 3](http://i.bosscdn.com/uploads/bb/8c/c3/629bdc3973eea8d708edfb5d16.jpg)
**About Us:**
We specialize in producing and exporting construction hex bolts, structure hex bolts, and building bolts according to standards such as IFI (A449, A490, A235, F1852, F2280), DIN (DIN6914/6915/7990), ISO, and custom designs based on client drawings.
**Table Summary:**
| Description | Construction Hex Bolt Structure Hex Bolt Building Bolt |
|----------------------------------|--------------------------------------------------------|
| Material | Steel |
| Surface | HDG, Zinc plated in chromium and RoHS |
| Size | M12 (1/2") up to M64 (2-1/2") |
| Length | Up to 500mm |
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**Q&A Section:**
**Who is Lockey?**
Lockey is a fastener manufacturer established in 1973. The Dragon Iron Group focuses on the production and sale of fasteners, hardware parts, forging, and machine parts for automotive and other industries. Lockey Industrial Co., Ltd. was set up in 2003 in Dongguan City, serving as the foreign sales department of the group. Our main plant is located in Jingjiang City, making it easy for us to export our products globally.
**What does Lockey do?**
As a leading fastener manufacturer, we produce a wide range of products including bolts, studs, thread rods, hex nuts, nylon nuts, flange locknuts, tapping screws, drilling screws, wood screws, machine screws, socket cap screws, washers, and more. We also offer structural fasteners compliant with ASTM A325/A490, ASTM F1852/F2280, DIN 6914/5/6, DIN 7990, and others. In addition, we manufacture special fasteners, hardware parts, forging, and machine parts for the automotive industry, working with brands like Toyota and Honda. 70% of our products are exported worldwide.
**Why choose Lockey?**
Innovation is at the heart of everything we do. With over 40 years of experience in fastener manufacturing, we continuously improve our technology and business concepts. We have a team of skilled professionals who are committed to quality, service, and collaboration. We are not just a supplier — we are your partner. We share information, price trends, and even profits with our clients.
**How does Lockey ensure quality?**
With an ISO 9001-certified quality assurance system, we maintain strict controls throughout the production process. Over 80% of our staff are experienced workers who have been with us for more than five years. They regularly attend training sessions to enhance their skills and ensure consistent product quality.
**Do you produce non-standard items?**
Yes, we can customize fasteners based on your specifications. Please send your drawing or detailed requirements to our sales representative, and we will provide a quotation promptly.
**Do you have a published price list?**
No, we do not publish a standard price list. Market conditions fluctuate, and we prefer to offer flexible pricing tailored to your needs. Our sales team will provide the best possible price for your order.
**Do you offer discounts?**
Yes, we offer discounts for bulk orders. However, our sales team always strives to provide the most competitive price available, so the discount may vary depending on your order size.
**Do you provide samples?**
Yes, stored samples are free of charge. However, we do not cover the cost of express shipping.
**What is the delivery time?**
For standard items, delivery takes approximately 20–40 days. For non-standard or custom items, it may take 35–60 days. Please consult with your sales representative for an accurate timeline.
**What is the payment term?**
We prefer T/T (Telegraphic Transfer) or L/C (Letter of Credit). Western Union is also acceptable for small payments, such as sample shipping fees.
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