Hex Socket Cap Screw DIN7991
1. Description: Hex Socket Cap Screw DIN7991
2. Material: Stainless Steel
3. Surface: Passivated
4. Size: M6 to M24, 1/4" to 1"
5. Length: Up to 500mm
6. Mechanical Properties: A2/4-50/70
7. Packing: Bulk packing and box packing
We are a professional manufacturer of fasteners, including Socket Cap Screws, Hex Head Screws, Carriage Bolts, Square Head Bolts, and more. Our products comply with standards such as DIN, GB, ANSI, ISO, and JIS. We use imported equipment, materials, and molds to ensure high-quality production. In addition to standard products, we also offer custom-made solutions tailored to your specific needs.
If you're interested in our products, feel free to contact us. With over 40 years of experience in the fastener industry and an ISO 9001 certification, we guarantee quality and service. Our team is dedicated to providing reliable support and competitive pricing.
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 | - | - |
| Mechanical Properties | Property class 8.8 | - | - |
| For ≤M20 | A2-70 (CuZn), A4-70 (Copper) | - | - |
| For >M20 | A2-50 (Zinc Alloy), A4-50 (….) | - | - |
| Standards | ISO 898 Part 1, DIN267 Part 11, DIN267 Part 18 | - | - |
| Limit Deviations | Product Grade A | - | - |
| Standard | ISO 4759 Part 1 | - | - |
| Surface Finish | Blackened, Bright | - | - |
| Acceptance Inspection | DIN267 Part 5 | - | - |
Q&A
Who is Lockey?
Lockey is a fastener manufacturer established in 1973. The Dragon Iron Group focuses on manufacturing and selling fasteners, hardware parts, forging, and machine parts for automotive and other industries. The company has its headquarters in A Lien, Taiwan, and operates through its foreign sales department in Dongguan City, China.
What does Lockey do?
As a fastener manufacturer, we produce a wide range of products, including bolts, nuts, screws, washers, and structural fasteners. We also manufacture special parts for automotive applications like Toyota and Honda. Over 70% of our products are exported globally.
Why choose Lockey?
Innovation is at the core of our business. We continuously improve our technology and concepts to stay ahead. We have a skilled team that ensures quality and customer satisfaction. We don’t just sell products—we build partnerships, sharing insights, trends, and profits.
How does Lockey ensure quality?
With over 40 years of experience and an ISO 9001 certification, we maintain strict quality control. 80% of our staff are skilled workers with extensive experience. Regular training ensures all employees can prevent and resolve issues effectively.
Do you produce non-standard items?
Yes, we do. Send us your drawings, and we will provide a quotation.
Do you have a published price list?
No, due to fluctuating market conditions, we adjust prices based on your requirements. Our sales team offers flexible and competitive pricing.
Do you offer discounts?
Yes, for large orders. However, we believe our sales team provides the best possible price, so discounts may not be very significant.
Do you provide samples?
Yes, stored samples are free. However, we don't cover express shipping costs.
What is the delivery time?
It depends on the order quantity. Standard items take 20–40 days, while non-standard items may take 35–60 days. Contact our sales representative for an accurate timeline.
What are the payment terms?
T/T and L/C are preferred. Western Union is also accepted for small payments, such as sample shipping fees.
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