724l . 725ln u shape bolt square made in china 317l. 347. 309s.310s

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No.3-DIN3570 SS 316 U Shaped Bolt

Quick Details:

Place of Origin: Jiangsu, China (Mainland)
Brand Name: HDF
Model Number: DIN3570 standard u-bolt
Standard: DIN
316Lmod u shape bolt made in china:724L u shape bolt square made in china
1.4435 u shape bolt made in china: u shape bolt square made in china


SizeMetric diameter M5 to M100 ;Inch Diameter 1/4” to 3” ,Length:10-3000mm
Material316L ,316LN,316Lmod,316Ti,317L, 317LN, 321,310S, 904L 254SMO AL6XN 1.4529 Super

austenitic alloy

Duplex stainless steel 2205 ,duplex stainless steel 2507,
Hastelloy C276, Hastelloy C4,    Hastelloy C22,

Hastelloy B2 ,HastelloyB3,

Monelk500, Monel400, GH2132/A286, GH4169/Inconel718,  Inconel600, Inconel601


Incoloy800/800H/800HT, Incoloy825,Alloy59.alloy20
Product rangeBolt ,nut ,screw ,washer, thread rod , flange, welding wire
StandardDIN ASME GB JIS  non-standard products
Logohdf ,  also according to client’s requirements
MOQ50pcs at least, also according to size and material


Sample policysample could provided, sample fee will be charged if no instock.
Sample timeOne day delivery if we have in stock, one week if no in stock.
In stock items904L Hex nut M6 to M36 , 1.4529 Hex nut M6 to M36

duplex 2205/2507 Hex nut M6 to M36

304/316/316L hex bolt and nut M6 to M36.
One stop purchasewe help you with one stop purchasing
OEM AcceptedYes
Mill test certificateYes
Inspection reportYes
Payment termL/C  T/T Western Union
Packing detailsCarton box 270x260x160 , Pallet 900X500X400
TreatmentCold forging
Exported  countriesUnited States, Germany, Saudi Arabia, South Korea, etc.

Product Equipment:

Winrock is professional supplier for special fastener, it establish an office on shanghai city, manufacture base is in Dongtai city, Jiangsu Province.
Production are widely application for Oil and gas, Petrochemical ,Power generation, Pressure vessel, Valve... We could machine fastener as international standard or special requirement. Winrock have fastener machining equipments completely, could make hot forging, CNC turning, rolling thread, heat treatment process. our equipment could machine bolts & nuts size M8-M100, length 0-2000mm. We have more special materials bar and end production in stock.
Winrock have strict inspection system, including chemical element analysis, physical metallographic, mechanical (350℃ tensile, -110℃ impact test), UT test,ect.

OUR Materials:
-Stainless steel: SS304L, SS316L, SS316Ti, SS317L, SS321, SS347, SS310, SS410
-Super Duplex: UNS S31803, S32205, S32550, S32750, S32760
-High Temperature Alloy: A453 660, Alloy20, 17/4PH, 17/7PH, 904L, XM-19, SMO254
-Nickel Alloy: Inconel 600, Inconel 601, Inconel 602CA, Inconel 625, Inconel 718
Incoloy 800, Incoloy 800HT, Incoloy 825, Incoloy 925, Hastelloy C22, C276
-Nickel-Copper: Monel 400, Monel K500
-Titanium Alloy: Titanium Gr2, Titanium Gr5, Titanium Gr7

OUR Products:
Hex Bolts/ Hex Cap Screws/Socket Head Cap Screws
Hex Nuts/Cap Nuts/Circular Nuts/Nylon Nuts
Engineering Stud: Stud bolts, Double Stud, Thread Rod
Special fastener: U Bolts, Eye Bolts, Anchor, Flange Bolts, Flange Nuts
Washer: Flat Washers, Spring Washers, SQ Washers
We supply perfect fastening solution way. in foreign market, included UAE, Malaysia, Japan,UK, France,Italy, Australia, ,ect
Winrock always keep the core values that is for professional, quality, commitment, the target goal is win to win with customers

Ø Q: What’s your Minimum Order Quantity?
Ø A: Usually the MOQ is 100 pieces for each item, but if we have inventory 1 piece is also acceptable. For some special parts, say, motorcycle axle, the MOQ could be 50 pieces.

Ø Q: What payment terms do you accept?
Ø A: We accept wire transfer, PayPal, Western Union. 30% advance and the balance before shipment.

Ø Q: What’s your return policy?
Ø A: We accept the returned commodity with defects.

Ø Q: How about your titanium raw material?
Ø A: The raw material we use is from 100% melted sponge titanium. Not like us, many other factories use the raw material from recycling titanium scraps.

Ø Q: What about the declared value for customs?
Ø A: Usually we declare US$80 to US$120 and the maximum no more than US$600. Please let us know timely if you want us to declare a true value.

Ø Q: What’s the difference among anodized color, PVD color and ceramic color?
Ø A: Anodized color means titanium part (anode) is processed under a lower electric voltage, usually no more than 100 V, with stainless steel cathode in the certain solution. The anodized film is very thin, only several microns, and is very easy to be scratched. Anodize colors mainly include blue, gold, pink, purple, green, rainbow and so on.
Ceramic color means titanium part (anode) is processed under a higher electric voltage, usually no less than 250 V, with stainless steel cathode in the certain solution. The ceramic film is very thick, about 30 microns, and is very difficult to be scratched. Ceramic colors mainly include gray and brown.
Physical Vapor Deposition means the titanium part is processed in the vacuum furnace, in which the color is made by the sputtering targets. PVD colors mainly include black, gold and rainbow.

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