Ss316 Hex Socket Flat Head Cap Screw DIN7991
1> Description: Ss316 Hex Socket Flat Head Cap Screw DIN7991
2> Material: Stainless Steel 316
3> Surface: Passivated
4> Size: M6 to M24, or 1/4" to 1"
5> Length: Up to 500mm
6> Mechanical Properties: A4-50/70
7> Packing: Bulk packing and box packing
We are a professional manufacturer of bolts such as Socket Cap Screws, Hex Head Screws, Carriage Bolts, Square Head Bolts, etc. Our products meet standards including DIN, GB, ANSI, ISO, JIS. We use imported equipment, materials, and matrices to ensure high-quality production. In addition to standard items, we also produce non-standard fasteners tailored to your specifications.
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.
Q&A
Who is Lockey?
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group specializes in the production and sales of fasteners, hardware parts, forging, and machine parts for automotive and other industries. The group's headquarters, Dragon Iron Enterprise, is 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 plant is based in Jingjiang City, making it easy for us to export our products.
What does Lockey do?
As a fastener manufacturer, we mainly produce, but are 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. Plain washers, spring washers, tooth washers.
5. Structural applications, ASTM A325/A490, ASTM F1852/2280, DIN6914/5/6, DIN7990. Meanwhile, special fasteners, hardware parts, forging, and machine parts for the automotive industry are also in our range. We produce parts for Toyota, Honda. 70% of our products are exported.
Why choose Lockey?
Lockey never stops innovating. Innovation is the driving force behind our development. Through technological and conceptual innovation, we continue to grow. We have gathered a team of professionals who excel in management and cooperation. Contacting them will bring you satisfactory results. We are more than just a supplier; we are your partner. We don't just sell—we share. We share the latest information on fasteners, price trends, and even profit. We are friends. We care about your sales and the quality of your usage.
How does Lockey ensure quality?
With over 40 years of experience in fastener manufacturing and an ISO9001 certificate, we tackle challenges and solve problems. Lockey has developed a quality assurance system based on ISO9001. We set criteria for factors that may affect quality. 80% of our staff are skilled workers with over five years of experience. Employees undergo training on and off work for weeks. All these efforts guide our workers on how to prevent and handle issues.
Does Lockey produce non-standard items?
Yes, we do. Send your specification drawings to our sales representative, and you will receive a quotation.
Does Lockey have a published price list?
We do not have a published price list. Market conditions in our business are always fluctuating, making it difficult to maintain standard pricing. Our sales staff can be flexible when quoting your requirements, ensuring you get the best price available when you need it.
Does Lockey offer discounts?
Of course. We can offer discounts based on large quantities. However, as mentioned earlier, we believe our sales staff have already offered you the best price. You may receive a discount, but not a significant one. Feel free to explore it further.
Does Lockey provide samples?
Why not? Stored samples are completely free. However, we don’t have a budget for express shipping.
What is the delivery time?
It depends on your order quantity. Standard items take approximately 20-40 days, while non-standard ones take 35-60 days. Please consult with our sales representative for an accurate shipment date.
What is the payment term?
T/T and L/C are preferred. Western Union is also acceptable for low-value payments, such as sample express fees.
| Technical Delivery Conditions | |||||
| Material | Steel | Stainless steel | Non-ferrous Metal | ||
| General requirements | As specified in DIN 267 part 1 | ||||
| Thread | Tolerance | 6g | |||
| Standard | DIN13 Part 12 & 15 | ||||
| Mechanical properties | Property class | 8.8 | ≤M20 | A2-70 | CuZn |
| A4-70 | Copper | ||||
| >M20 | A2-50 | Zinc Alloy | |||
| A4-50 | ........ | ||||
| Other property classes or material subject to agreement | |||||
| Standard | ISO 898 Part 1 | DIN267 Part 11 | DIN267 Part 18 | ||
| Limit deviations geometrical tolerance | Product grade | A | |||
| Standard | ISO 4759 Part 1 | ||||
| Surface finish | Blackened | Bright | Bright | ||
| DIN267 Part 2 shall apply with regard to surface roughness | |||||
| DIN267 Part 19 shall apply with regard to permissible surface discontinuities | |||||
| DIN267 Part 9 shall apply with regard to electroplating | |||||
| If a different kind of electroplating or a different kind of surface protection is desired, this should be agreed upon at the time of ordering | |||||
| Acceptance inspection | DIN267 Part 5 shall apply with regard to acceptance inspection | ||||
Q&A
Who is Lockey?
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group specializes in the production and sales of fasteners, hardware parts, forging, and machine parts for automotive and other industries. The group's headquarters, Dragon Iron Enterprise, is 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 plant is based in Jingjiang City, making it easy for us to export our products.
What does Lockey do?
As a fastener manufacturer, we mainly produce, but are 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. Plain washers, spring washers, tooth washers.
5. Structural applications, ASTM A325/A490, ASTM F1852/2280, DIN6914/5/6, DIN7990. Meanwhile, special fasteners, hardware parts, forging, and machine parts for the automotive industry are also in our range. We produce parts for Toyota, Honda. 70% of our products are exported.
Why choose Lockey?
Lockey never stops innovating. Innovation is the driving force behind our development. Through technological and conceptual innovation, we continue to grow. We have gathered a team of professionals who excel in management and cooperation. Contacting them will bring you satisfactory results. We are more than just a supplier; we are your partner. We don't just sell—we share. We share the latest information on fasteners, price trends, and even profit. We are friends. We care about your sales and the quality of your usage.
How does Lockey ensure quality?
With over 40 years of experience in fastener manufacturing and an ISO9001 certificate, we tackle challenges and solve problems. Lockey has developed a quality assurance system based on ISO9001. We set criteria for factors that may affect quality. 80% of our staff are skilled workers with over five years of experience. Employees undergo training on and off work for weeks. All these efforts guide our workers on how to prevent and handle issues.
Does Lockey produce non-standard items?
Yes, we do. Send your specification drawings to our sales representative, and you will receive a quotation.
Does Lockey have a published price list?
We do not have a published price list. Market conditions in our business are always fluctuating, making it difficult to maintain standard pricing. Our sales staff can be flexible when quoting your requirements, ensuring you get the best price available when you need it.
Does Lockey offer discounts?
Of course. We can offer discounts based on large quantities. However, as mentioned earlier, we believe our sales staff have already offered you the best price. You may receive a discount, but not a significant one. Feel free to explore it further.
Does Lockey provide samples?
Why not? Stored samples are completely free. However, we don’t have a budget for express shipping.
What is the delivery time?
It depends on your order quantity. Standard items take approximately 20-40 days, while non-standard ones take 35-60 days. Please consult with our sales representative for an accurate shipment date.
What is the payment term?
T/T and L/C are preferred. Western Union is also acceptable for low-value payments, such as sample express fees.
Metal
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