High Strength Hook Bolts J Bolts, Fastener Hook Bolt, M4/M6/M8

• Customization: Available
• Material: Carbon Steel
• Type: J Type
• Model NO.: M2-M30
• Connection: Hinged Bolts
• Head Style: Counter Sunk Bolt
• Standard: DIN, ANSI, GB, JIS, BSW, GOST
• Grade: Ss304
• Application: Machinery
• Finish: Polishing
• Available Material: Carbon Steel, High Strength Steel, Stainless Steel
• Head Type: U-Type, J-Type, Eye-Type
• International Standard: DIN, ANSI, GB, JIS, Bsw, GOST
• Class/Grade: 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9
• Used: Machinery, Chemical Industry, Environmental,
• Surface Finishing: Hot Galvanizing, Black, Color-Zinc, Blue-White Zi
• Transport Package: 20-25kg/Carton+Pallet
• Specification: M4-m64
• Trademark: HN
• Origin: China
• HS Code: 7318159090
• Production Capacity: 500ton/Month

Product Description

High Strength Hook Bolts,Fastener Hook Bolt,M4,M6,M8
A U-bolt is a bolt in the shape of the letter U with screw threads on both ends.
U-bolts have primarily been used to support pipework, pipes which fluids and gasses pass through. As such, U-bolts were measured using pipe work engineering speak. A U-bolt would be described by the size of pipe it was supporting.
For example, a 40 Nominal Bore U-bolt would be asked for by pipe work engineers, and only they would know what that meant. In reality, the 40 nominal bore part bears little resemblance to the size and dimensions of the u-bolt.
The nominal bore of a pipe is actually a measurement of the inside diameter of the pipe. Engineers are interested in this because they design a pipe by the amount of fluid / gas it can transport.
As U-bolts are now being used by a much wider audience to clamp any kind of tubing / round bar then a more convenient measurement system needs to be used.

Products Description 

Products name	U-Bolts
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),Hop Dip Galvanized(HDG),Black Oxide, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Production  Process	M4-M64:Cold Froging,M24-M100 Hot Forging, Machining and CNC for Customized fastener
Customized Products Lead time	Busy season:15-30days,Slack seaon:10-15days
Stock Products	Steel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782 Stainless steel: All DIN Standard stainless steel Bolt
Free Samples for standard fastener
For more information visit:hainafastener.en.made-in-china.com

Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers' specification and performance.
Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
Cost effective: Competitive prices with factory directly supply
Perfect fastening solution with 20 years experiences to solve your problem: Wide range of parts selection.
Customized Ideal Fasteners: customized services according to the samples and drawings offered.
                If you are not sure about what exactly you need - feel free to contact us anytime and get professional assistance from us.