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**ASTM F1852 Twist-Off Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat-Treated, 120/105 KSI Minimum Tensile Strength**
**Description:**
ASTM F1852 Twist-Off Type Tension Control Structural Bolt/Nut/Washer Assemblies are manufactured from high-quality steel and heat-treated to achieve a minimum tensile strength of 120/105 KSI. These assemblies are ideal for structural applications where precise tension control is essential. They are commonly used in construction projects that require strong and reliable fastening solutions.
**Material:**
Steel (heat-treated)
**Surface Finish:**
Plain, Hot-Dipped Galvanized (HDG), Zinc Plated with Chromium, and RoHS compliant
**Size Range:**
From 1/2" to 2-1/2" in diameter (M12 to M64)
**Length:**
Up to 500mm
**Standards:**
IFI (A449, A490, A235, F1852, F2280), DIN (DIN 6914/6915/7990), ISO standards, and custom designs based on client drawings
**Model No.:** LKOZ
**Application:** Structural Use
**Finish:** Plain, Zinc, HDG
**Sample:** Free if available in stock
**Market:** Global
**Trademark:** LK
**Transport Packaging:** Bulk Packing, Small Box Packing
**Origin:** China
**HS Code:** 7318
We specialize in producing and exporting high-quality structural bolts, including Construction Hex Bolts, Building Bolts, and other fasteners according to IFI, DIN, and ISO standards. We also offer custom solutions based on customer specifications. If you're interested in our products, feel free to reach out.
| Description | Construction Hex Bolt Structure Hex Bolt Building Bolt |
|-------------------------------|--------------------------------------------------------|
| Material | Steel |
| Surface | HDG, Zinc Plated with Chromium, RoHS Compliant |
| Size | M12 (1/2") up to M64 (2-1/2") |
| Length | Up to 500mm |
**Q&A**
**Who is Lockey?**
Lockey is a fastener manufacturer established in 1973. The company is part of the Dragon Iron Group, which has been dedicated to manufacturing and selling fasteners, hardware parts, forging, and machine parts for the automotive and other industries. Lockey Industrial Co., Ltd. was set up in 2003 in Dongguan City as the foreign sales department of the group, with its plant located in Jingjiang City, making it easy to export products globally.
**What Does Lockey Do?**
As a fastener manufacturer, we produce a wide range of products, including:
- Bolts, studs, and threaded rods
- Hex nuts, nylon nuts, flange locknuts
- Tapping screws, drilling screws, wood screws, machine screws, socket cap screws
- Washers (plain, spring, tooth)
- Structural fasteners such as ASTM A325/A490, ASTM F1852/F2280, DIN 6914/6915/7990, etc.
We also manufacture special fasteners, hardware parts, forging, and machine parts for the automotive industry, serving major brands like Toyota and Honda. 70% of our products are exported worldwide.
**Why Choose Lockey?**
Innovation is at the heart of Lockey’s success. With over 40 years of experience, we continuously strive to improve through technological and conceptual innovation. Our team of skilled professionals ensures quality, reliability, and excellent service. We believe in building long-term partnerships with our clients, not just transactions. We share market insights, pricing trends, and even profit with our customers.
**How Does Lockey Ensure Quality?**
With an ISO 9001 certification and over 40 years of experience, Lockey maintains a strict quality assurance system. Over 80% of our staff are skilled workers with more than five years of experience. Employees regularly attend training sessions to ensure they can prevent and resolve issues efficiently.
**Do You Produce Non-Standard Items?**
Yes, we do. If you have specific drawings or requirements, please send them to our sales representative, and we will provide a detailed quotation.
**Do You Have a Published Price List?**
No, we don’t. Market conditions are always changing, so we prefer to offer flexible pricing based on your needs. Our sales team will provide the best possible price for your order.
**Do You Offer Discounts?**
Yes, we do. Discounts are available for large orders. However, our sales representatives are trained to provide competitive pricing, so the discount may not be very large, but you’ll still get good value.
**Do You Provide Samples?**
Yes, stored samples are free of charge. However, we cannot cover the cost of express shipping.
**What Is the Delivery Time?**
For standard items, delivery usually takes 20–40 days. For non-standard or custom items, it may take 35–60 days. Please consult with your sales representative for an accurate estimate.
**What Are the Payment Terms?**
We prefer T/T (Telegraphic Transfer) and L/C (Letter of Credit). Western Union is also accepted for small payments, such as sample shipping fees.