Ss304 Hex Socket Flat Head Cap Screw DIN7991
1> Description: Ss304 Hex Socket Flat Head Cap Screw DIN7991
2> Material: Stainless Steel 304
3> Surface: Passivated
4> Size: M6 to M24, 1/4" to 1"
5> Length: Up to 500mm
6> Mechanical Properties: A2-50/70
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, and more. Our products follow standards like DIN, GB, ANSI, ISO, and JIS. We use imported equipment, materials, and matrices to ensure high-quality production. In addition, 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 and an ISO9001 certification, 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 |
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. The Dragon Iron Group focuses on manufacturing and selling fasteners, hardware parts, forging, and machine parts for the automotive and other industries. The group's headquarters 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 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/F2280, DIN6914/5/6, DIN7990
In addition, we also produce special fasteners, hardware parts, forging, and machine parts for the automotive industry. We supply parts for Toyota, Honda, etc. 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 skilled in management and cooperation. Contacting them will give you satisfactory results.
We are glad that you chose Lockey as your supplier, but Lockey is more than just a supplier. We are your partner. We don’t only sell; we share. Share the latest information on fasteners, price trends, and 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 solve any difficulties or problems that may arise. We have set up a quality assurance system based on ISO9001. Criteria were developed considering factors that could affect quality. 80% of our staff are skilled and have worked with us for more than five years. Employees undergo training to prevent and handle issues effectively.
Does Lockey produce non-standard items?
Yes, we do. Send your specifications to our sales representative, and you will receive a quotation.
Does Lockey have a published price list?
No, we don't. Market conditions fluctuate, making it difficult to maintain standard pricing. Our sales team has the flexibility to offer the best price when needed.
Does Lockey offer discounts?
Of course. We can offer discounts based on large quantities. However, we believe our sales team offers the best price. You may get a discount, but not a huge one. Feel free to explore further.
Does Lockey 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 orders take about 20-40 days, while non-standard ones take 35-60 days. Contact your sales representative for an accurate shipment date.
What is the payment term?
T/T and L/C are preferred. Western Union is acceptable for low-value payments, such as sample shipping fees.
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