Alloy Steel Grade 8 Hex Bolt for Machine
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Alloy Steel Grade 8 Hex Bolt for Machinery
1> Description: Alloy Steel Grade 8 Hex Bolt for Machinery
2> Material: Alloy Steel
3> Surface: Plain
4> Size: M6 to M36, or 1/4" to 1-1/2"
5> Length: Up to 800mm
6> Mechanical Properties: Grade 8
7> Packing: Bulk packing and box packing
We are a professional manufacturer of bolts including hex head screws, carriage bolts, square head bolts, etc. Our products meet standards such as DIN, GB, ANSI, ISO, and JIS. We use imported equipment, materials, and matrices to ensure high-quality production. We also produce non-standard fasteners tailored to specific requirements.
Please feel free to contact us if you are interested in our products. With over 40 years of experience in the fastener industry, we guarantee the best quality and service.
Technical Delivery Conditions
| Material | Steel | Stainless steel | Non-ferrous metal |
|----------|-------|------------------|-------------------|
| General requirements | As specified in DIN 267 part 1 | — | — |
| Thread Tolerance | 6g | — | — |
| Thread Standard | DIN13 Part 12 & 15 | — | — |
| Property class | 5.6 / 8.8 / 10.9 | A2-70 / A4-70 | Subject to agreement |
| Standard | ISO 898 Part 1 / DIN267 Part 11 / DIN267 Part 18 | — | — |
| Limit deviations geometrical tolerance | A for product up to size M24 and L≤10d or 150mm / B for product exceeding size M24 or L>10d or 150mm | — | — |
| Surface finish | Blackened (for property class 8.8 and above) / Bright | — | — |
| Acceptance inspection | DIN267 Part 5 | — | — |
Q&A
Who is Lockey?
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group focuses on the production and sales of fasteners, hardware parts, forging, and machine parts for automotive and other industries. The company'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, with a plant in Jingjiang City to facilitate exports.
What does Lockey do?
As a 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 special fasteners, hardware parts, and machine parts for the automotive industry, serving brands like Toyota and Honda. Over 70% of our products are exported globally.
Why choose Lockey?
Innovation is at the core of Lockey’s operations. With over 40 years of experience, we continuously improve through technological and conceptual innovation. Our team of skilled professionals ensures reliable service and support. We are not just a supplier but a partner, sharing information, trends, and profits with our clients.
How does Lockey ensure quality?
With an ISO 9001 certification and 40+ years of manufacturing experience, we have a strict quality assurance system. 80% of our staff are skilled workers with over 5 years of experience. Employees undergo regular training to ensure they can prevent and handle any issues effectively.
Do you produce non-standard items?
Yes, we do. Please send your specifications to our sales representative, and we will provide a quotation.
Do you have a published price list?
No, we don’t. Our pricing is flexible due to fluctuating market conditions, and our sales team offers competitive rates based on your needs.
Do you offer discounts?
Yes, we offer discounts for large orders. However, our sales team always strives to provide the best possible price.
Do you provide samples?
Yes, stored samples are free. However, we don’t have a budget for express shipping.
What is the delivery time?
It depends on the order quantity. Standard items take about 20–40 days, while non-standard items may take 35–60 days. Contact our sales representative for an accurate shipment date.
What are the payment terms?
T/T and L/C are preferred. Western Union is acceptable for low-value payments, such as sample shipping fees.