Round Head Square Neck Carriage Bolt Zinc
AMERICA DIVISION OF TOP SHINE CO.,LTD. , https://www.fiestasupplier.com
1. Description: This is a high-quality round head square neck carriage bolt that is coated with zinc for enhanced corrosion resistance.
2. Material: Made from premium steel for strength and durability.
3. Surface Treatment: Zinc coating provides excellent protection against rust and wear.
4. Size Range: Available in sizes from M5 to M20, as well as 1/4" to 3/4".
5. Length: Can be manufactured up to 200mm (8 inches) in length.
6. Mechanical Properties: Comes in classes such as 6.8, 8.8, and grades like 2, 5, offering reliable performance under different load conditions.
7. Packaging: Typically packed in bulk and then placed on pallets for easy shipping and handling.
Our product line includes a wide range of bolts such as carriage bolts, hex bolts, hex socket cap screws, Allen screws, lag bolts (coach screws), hex flange bolts, thread rods, square bolts, and more. We also offer custom-made bolts based on customer drawings. If you're interested in our products, feel free to reach out to us anytime.
Technical Delivery Conditions
Material
Steel
Stainless Steel
General Requirements
As specified in ISO 8992
Thread
Tolerance
8g
Standard
DIN ISO 965-1; DIN ISO 965-2
Mechanical Properties
Property Class
4.6, 4.8, 8.8
A2-70, A4-70
Standard
DIN EN ISO 898 Part 1
DIN EN ISO 3506-1
Limit Deviations & Geometrical Tolerance
Product Grade
C
Standard
DIN EN ISO 4759-1
Surface Finish
DIN EN ISO 26157-1 shall apply regarding permissible surface discontinuities
DIN EN ISO 16048 shall apply regarding passivation
DIN EN ISO 4042 shall apply regarding electroplating
DIN EN ISO 10684 shall apply regarding hot dip galvanizing
DIN EN ISO 10683 shall apply regarding non-electrolytically applied zinc flake coating
If different electroplating or other surface protection is desired, this shall be agreed upon at the time of ordering
Acceptance Inspection
DIN EN ISO 3269 shall apply regarding acceptance inspection
Q&A
**Who is Lockey?**
Lockey is a fastener manufacturer established in 1973. The company is part of the Dragon Iron Group, which specializes in manufacturing and selling fasteners, hardware parts, forging, and machine parts for automotive and other industries. The group's headquarters are located in A Lien, Taiwan. Lockey Industrial Co., Ltd. was set up in 2003 in Dongguan City as the foreign sales department of the group. Our production facility is located in Jingjiang City, making it easier for us to export our products globally.
**What does Lockey do?**
As a leading fastener manufacturer, we produce a wide range of products including but not limited to:
1. Bolts, studs, and thread rods
2. Hex nuts, nylon nuts, flange locknuts
3. Tapping screws, drilling screws, wood screws, machine screws, socket cap screws
4. Washers (plain, spring, tooth)
5. Structural applications such as ASTM A325/A490, ASTM F1852/F2280, DIN 6914/5/6, DIN 7990
We also manufacture special fasteners, hardware parts, forging, and machine parts for the automotive industry, working with brands like Toyota and Honda. Approximately 70% of our products are exported worldwide.
**Why choose Lockey?**
Innovation is at the core of Lockey's philosophy. We believe that continuous innovation drives our growth and development. We have a team of skilled professionals who excel in both management and collaboration. When you work with us, you get more than just a supplier—you become a partner. We share market updates, price trends, and even profit opportunities with our clients.
**How does Lockey ensure quality?**
With over 40 years of experience in fastener manufacturing and an ISO 9001 certification, we maintain strict quality control throughout the production process. We've developed a comprehensive quality assurance system based on ISO 9001 standards. Our workforce consists of 80% skilled workers with over five years of experience, and all employees undergo regular training to improve their skills and prevent issues during production.
**Does Lockey produce non-standard items?**
Yes, we do. If you have specific design requirements, simply send your drawings to our sales representative, and we'll provide a quotation promptly.
**Do you have a published price list?**
No, we don't. Market conditions can fluctuate, making it difficult to maintain a standard pricing list. Our sales team offers flexible pricing tailored to your needs, ensuring you receive the best possible deal.
**Do you offer discounts?**
Of course, we do. Discounts are available for large orders. However, our sales team strives to offer competitive pricing that reflects the value of our products and services.
**Do you provide samples?**
Yes, we do. Free samples are available, but we currently don’t have a budget for express delivery.
**What is the delivery time?**
Delivery time varies depending on the order quantity. Standard items usually take 20–40 days, while non-standard items may take 35–60 days. Please consult with our sales representative for an accurate shipment date.
**What are the payment terms?**
We prefer T/T and L/C payments. Western Union is also acceptable for low-value payments, such as sample shipping fees.