**Product Specifications:**
- **Model No.:** DIN
- **Application:** Machinery, Chemical Industry, Environmental, Construction
- **Finish:** Hot Galvanized
- **HS Code:** 731815, 731815
- **MOQ:** 900 kgs
- **Trademark:** HNF
- **Transport Package:** 20–25 kg Carton + 900 kg Pallet
- **Specification:** M2–M48
- **Origin:** China
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**Grade 4.8 8.8 HDG Steel Square Bend U Bolt**
A bolt is a type of threaded fastener with an external male thread. It is often confused with a screw due to their similar appearance and function. However, bolts are typically used with nuts and are designed for high-strength applications.
A hex cap screw is a specific type of bolt with a hexagonal head, meant to be tightened using a wrench or spanner. Compared to a hex bolt, an ASME B18.2.1 compliant hex cap screw has tighter tolerances in terms of head height and shank length. This ensures that it will always fit where a hex bolt is installed, while a hex bolt may be slightly too large to fit in the same application.
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**Product Table:**
| Product Name | Bolts (U Bolt, Hex Bolt, Heavy Hex Bolt, Flange Bolt, Carriage Bolt, Guardrail Bolt) |
|--------------|----------------------------------------------------------------------------------|
| Standard | DIN, ASTM/ANSI, JIS, EN, ISO, AS, GB |
| Material | Stainless Steel: SS201, SS303, SS304, SS316, SS316L, SS904L, F593
Steel Grade: DIN Gr.4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; SAE Gr.2, 5, 8; ASTM 307A, 307B, A325, A394, A490, A449 | | Finishing | Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), Black Oxide, Geomet, Dacromet, Anodization, Nickel Plated, Zinc-Nickel Plated | | Production Process | M2-M24: Cold Forging; M24-M100: Hot Forging; Machining & CNC for Customized Fasteners | | Customized Products Lead Time | Busy Season: 15–30 Days; Slack Season: 10–15 Days | | Stock Products | Steel: 4.8 Grade DIN6923, 8.8 Grade, 10.9 Grade of GB5783 and GB5782
Stainless Steel: All DIN Standard Stainless Steel Bolts | | Free Samples | Available for standard fasteners | | Visit Us | [www.hainafastener.com](http://www.hainafastener.com) | --- **Images:**   This product is ideal for industrial and construction use, offering durability, strength, and corrosion resistance. Whether you need standard or customized fasteners, we provide quality solutions tailored to your needs. Contact us today for more information!
Steel Grade: DIN Gr.4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; SAE Gr.2, 5, 8; ASTM 307A, 307B, A325, A394, A490, A449 | | Finishing | Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), Black Oxide, Geomet, Dacromet, Anodization, Nickel Plated, Zinc-Nickel Plated | | Production Process | M2-M24: Cold Forging; M24-M100: Hot Forging; Machining & CNC for Customized Fasteners | | Customized Products Lead Time | Busy Season: 15–30 Days; Slack Season: 10–15 Days | | Stock Products | Steel: 4.8 Grade DIN6923, 8.8 Grade, 10.9 Grade of GB5783 and GB5782
Stainless Steel: All DIN Standard Stainless Steel Bolts | | Free Samples | Available for standard fasteners | | Visit Us | [www.hainafastener.com](http://www.hainafastener.com) | --- **Images:**   This product is ideal for industrial and construction use, offering durability, strength, and corrosion resistance. Whether you need standard or customized fasteners, we provide quality solutions tailored to your needs. Contact us today for more information!
Swivel joint is a kind of high pressure fluid control products, which is commonly applied to Cementing and Fracturing Equipment.
We also supply repair kits for both standard service swivel joints and H2S Service swivel joints.
It includes grease retainer, O rings, packing, internal circlip, ball stopper, steel ball, oil plug and etc..Swivel Joints,Api Swivel Joints,Radius Adjustable Swivel Joints,Swivel Joints Union Connection
Henan Youlong Petroleum Engineering Technology Co.,Ltd , https://www.youlongenergy.com