Mushroom Head Square Neck Carriage Bolt
1> Description: Mushroom Head Square Neck Carriage Bolt
2> Material: Carbon Steel
3> Surface: Plain
4> Size: M5 to M20, #10 to 1"
5> Length: Up to 500mm
6> Mechanical Properties: Class 6.8, 8.8, 10.9; Grade 2, 5, 8, A307
7> Packing: Bulk packing and box packing, and according to customer's requested then in pallet
The main products of carriage bolts include:
1. DIN603 Mushroom Head Square Neck Bolt
2. ISO8677 Truss Head Square Neck Bolt
3. ASME B18.5 Round Head Square Neck Bolt, Round Head Short Square Neck Bolt
Also, we produce Hex Bolt, Hex Socket Cap Screw, Allen Screw, Lag bolt (Coach screw), Hex Flange bolt, Thread Rod, Square Bolt, Hex Bolt with nuts, and some special bolts per the drawing from the client.
Quotation will be sent shortly after getting your detailed inquiry.
Technical Delivery Conditions |
Material |
Steel |
Stainless steel |
General requirements |
As specified in ISO 8992 |
Thread |
Tolerance |
8g |
Standard |
DIN ISO965-1; DIN ISO965-2 |
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 with regard to permissible surface discontinuities |
DIN EN ISO 16048 shall apply with regard to passivation |
DIN EN ISO 4042 shall apply with regard to electroplating |
DIN EN ISO 10684 shall apply with regard to hot dip galvanize |
DIN EN ISO 10683 shall apply with regard to 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 with regard to acceptance inspection |
Q&A
Who is Lockey?
Full name: Lockey Industrial Co., Ltd. A fastener manufacturer founded in 1973. Dragon Iron Group focuses on the manufacture and sales of fasteners, hardware parts, forging, and machine parts for automotive and other industries.
Dragon Group has its headquarters, Dragon Iron Enterprise, in A Lien, Taiwan.
Lockey Industrial Co., Ltd. was established in 2003 in Dongguan City as the Foreign Sales Department of the group. Our plant was set up in Jingjiang City, which allows us to easily export our products. Visit http://www.lockey-dg.com/eng_001.htm for more information.
What do Lockey produce?
As a fastener manufacturer, we mainly produce 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. 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 part of our range. We make parts for Toyota, Honda.
70% of our products are exported.
Why Lockey?
Lockey never stops doing one thing: INNOVATE. Innovation is the permanent power for the development of Lockey. Technology innovation and concept innovation keep Lockey going well and going further. Meanwhile, Lockey gathered a group of talents who are good at management and cooperation. Contact with these professionals, you will get a satisfied result.
We are glad that you choose Lockey as your supplier, but Lockey is more than a supplier. We are partners. We do not only sell, we share. Share the latest info on fasteners, price trends, and also profit.
We are friends. We do not only care about our sales, but also yours, and the quality in using.
What do Lockey do to assure the quality?
With over 40 years of experience in fastener manufacturing and an ISO9001 certificate, we meet difficulties or problems and solve them all ways. Lockey sets up a quality assurance system according to ISO9001 with the 40 years of experience. Criteria were made on factors that may affect the quality. 80% of our staff are skilled and have worked in Lockey for more than 5 years. Employees have to take skill classes on/off work for weeks. All of these guide our workers how to prevent and handle an issue.
Do Lockey produce non-standard items?
Yes, we do. Send your specification drawings to our sales representative, and you will get a quotation.
Do Lockey have a published price list?
We do NOT have a published price list. In our business market conditions are always fluctuating, which makes standard pricing difficult to maintain. We allow our sales staff to be flexible when it comes to quoting on your requirements, which means that you will receive the best pricing available when you need it.
Do Lockey offer a discount?
Of course. We can offer you a discount based on your large quantity. But at the same time, like what we said above, we believe our sales staff have offered you the best price. In that way, you may have a discount, but not a big one. Go and explore for it.
Do Lockey provide samples?
Why not? And stored samples are totally free. What we are going to tell you is that we do NOT have budget for Express.
What's the delivery time?
It depends on your order quantity. It is about 20-40 days for standard ones, 35-60 days for non-standard ones. Check it with the sales representative, he/she will give an accurate date of shipment.
What is the payment term?
T/T & L/C are the preferred payment terms. Also Western Union is acceptable for low value payments, like samples' Express fee.
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