1). Standard: ASTM A563 A194 2H Nut, DIN934 nut DIN6915 Heavy Hex Nut
2). Grade: Type1, 2, 3, Gr. 2H, Gr. 2HM, Gr. 7, Gr. 7M
3). Material: Carbon steel, alloy steel, stainless steel, etc.
4). Surface: Plain, Black, ZP, ZY, H. D. G. etc.
5). Packaging: 25kgs per box, 36 boxes per pallet
Competitive Advantages
1). Top Quality control
2). Competitive Price
3). Various of Design
4). OEM Accepted
5). Customer's Design and Logo are Welcome

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Assembling | Stainless Steel Hexagon Socket Set Screws with Dog Point | |||||||
Types of bolt | DIN933,DIN931,DIN603,DIN6921,Stud bolt, threaded bar, U bolt ect | |||||||
Types of nut | DIN934,DIN6923,DIN315, hex nut,cap nut, Flange nut, T nut, Square nut ect | |||||||
Material | stainless steel (ss201,ss202,ss410,ss304 ss316,A2-70,A4-70,A4-80) | |||||||
Carbon steel(,Q235,C1010,C1020,C1040,10b21,etc) | ||||||||
Brass/copper(H62,H65,H68,etc) | ||||||||
Grade | GB,ISO,DIN standard:grade4.8,grade8.8,grade10.9,grade12.9 | |||||||
ANSI,ASTM:grade2,grade5 grade8 | ||||||||
Finishing | Coloured zinc-plated(galvanized,can be white,blue,yellow,green) | |||||||
Hot dip galvanized(HDG) | ||||||||
Nickel-plated,Chrome-plated,Tin-plated,Dacromet | ||||||||
Passivation,Dacroblack,QPQ,Polished,Matt | ||||||||
Size | M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M24 M27 | |||||||
M30 M32(Regular size), | ||||||||
Length | 8-300mm(regular length) | |||||||
Payment Term | T/T,L/C,etc. | |||||||
Port | Shanghai | |||||||
Packagement | carton+pallet |
About us:
Jiaxing Goshen Hardware Co Limited, formerly Haina Fastener Co.,Ltd, established in China Mainland with the High-Quality strategy and marketing philosophy inherited from the holding company in the willing to supply better service for the domestic and overseas client.
Mainly Product;
BOLTÂ : din933, din931, din419, din558, din7990, din6922, ASME/ANSI B 18.2.1 , ASME/ANSI BÂ Â Â Â Â Â Â Â 18.2.3.1M,GB, BSW, ISO Hex bolt , carriage bolt, heavy hex bolt, flange head bolt, achor bolt ect
Rod : threaded rod din976, threaded bar din975 stud bolt, B7 stud bolt ect
Nut : din934, hex heavy hex nut, 2H nut, din555, flange bolt, cap nut, nylon nut, ect
Screw :hex screw, self drilling screw, self tapping screw, drywall screw, pan head screw, button head screw, machine screw, chipboard screw,furniture screw,wood screw, ect
Washer :flat washer, spring washer, lock washer,square washer,spring lock washer, plain washer ect
Customized:
If you have drawing or samples, we can as your requirment to product. Welcome to your early reply.
Promise:
1. Hight quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. Best service
 Stainless Steel Hexagon Socket Set Screws with Dog Point
1). Standard: ASTM A563 A194 2H Nut, DIN934 nut DIN6915 Heavy Hex Nut
2). Grade: Type1, 2, 3, Gr. 2H, Gr. 2HM, Gr. 7, Gr. 7M
3). Material: Carbon steel, alloy steel, stainless steel, etc.
4). Surface: Plain, Black, ZP, ZY, H. D. G. etc.
5). Packaging: 25kgs per box, 36 boxes per pallet
Competitive Advantages
1). Top Quality control
2). Competitive Price
3). Various of Design
4). OEM Accepted
5). Customer's Design and Logo are Welcome

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Assembling | Stainless Steel Hexagon Socket Set Screws with Dog Point | |||||||
Types of bolt | DIN933,DIN931,DIN603,DIN6921,Stud bolt, threaded bar, U bolt ect | |||||||
Types of nut | DIN934,DIN6923,DIN315, hex nut,cap nut, flange nut, T nut, Square nut ect | |||||||
Material | stainless steel (ss201,ss202,ss410,ss304 ss316,A2-70,A4-70,A4-80) | |||||||
Carbon steel(,Q235,C1010,C1020,C1040,10b21,etc) | ||||||||
Brass/copper(H62,H65,H68,etc) | ||||||||
Grade | GB,ISO,DIN standard:grade4.8,grade8.8,grade10.9,grade12.9 | |||||||
ANSI,ASTM:grade2,grade5 grade8 | ||||||||
Finishing | Coloured zinc-plated(galvanized,can be white,blue,yellow,green) | |||||||
Hot dip galvanized(HDG) | ||||||||
Nickel-plated,Chrome-plated,Tin-plated,Dacromet | ||||||||
Passivation,Dacroblack,QPQ,Polished,Matt | ||||||||
Size | M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M24 M27 | |||||||
M30 M32(Regular size), | ||||||||
Length | 8-300mm(regular length) | |||||||
Payment Term | T/T,L/C,etc. | |||||||
Port | Shanghai | |||||||
Packagement | carton+pallet |
About us:
Jiaxing Goshen Hardware Co Limited, formerly Haina Fastener Co.,Ltd, established in China Mainland with the High-Quality strategy and marketing philosophy inherited from the holding company in the willing to supply better service for the domestic and overseas client.
Mainly Product;
BOLTÂ : din933, din931, din419, din558, din7990, din6922, ASME/ANSI B 18.2.1 , ASME/ANSI BÂ Â Â Â Â Â Â Â 18.2.3.1M,GB, BSW, ISO Hex bolt , carriage bolt, heavy hex bolt, flange head bolt, achor bolt ect
Rod : threaded rod din976, threaded bar din975 stud bolt, B7 stud bolt ect
Nut : din934, hex heavy hex nut, 2H nut, din555, flange bolt, cap nut, nylon nut, ect
Screw :hex screw, self drilling screw, self tapping screw, drywall screw, pan head screw, button head screw, machine screw, chipboard screw,furniture screw,wood screw, ect
Washer :flat washer, spring washer, lock washer,square washer,spring lock washer, plain washer ect
Customized:
If you have drawing or samples, we can as your requirment to product. Welcome to your early reply.
Promise:
1. Hight quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. Best service
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Fixed tube heat exchanger consists of tube bundle, tube plate, shell, head, folded plate, etc. Tube bundle ends fixed in the tube plate, the tube can be expanded (the inner hole of the tube with mechanical expansion, so that the tube wall from the inward to outward extrusion and fixed in the tube plate) or welded to the tube plate. The tube bundle is placed within the tube shell, with headers and flanges fixed at both ends. In this way, one fluid flows from the inside of the tube and the other from the outside. The space between the two heads and the tube plate is used to distribute or collect the fluids inside the tube. The two fluids do not mix with each other, but only exchange heat through the tube wall.
Advantages: simple and compact structure, high pressure resistance, low cost and easy to clean the tube side.
Disadvantages: Risk of blockage when the tube is damaged or needs to be replaced.
When the difference between the wall temperature of the tube bundle and the shell or the coefficient of linear expansion of the material is large, a large thermal stress will be generated in the shell and the tube bundle. A flexible compensation ring (also called expansion joint) should be installed on the shell to reduce the thermal stress.
Fixed Tube Heat Exchanger,Tubular Exchanger,Tema Heat Exchanger,Fixed Tube Sheet Heat Exchanger
Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.heatexchangerjiema.com