5/16"-18 x 3-1/2" Zinc Finish ASTM A307 Grade 8 Round Head special Carriage bolt

Shanghai kinsom precision hardware co.,ltd provide kinds of bolts as 5/16"-18 x 3-12 Zinc Finish ASTM A307 Grade A Round Head Carriage bolt

• Material: Steel
• Specification: customized by your detail requirements
• System of Measurement:Imperial (Inch)Metric or your demands
• Thread:Coarse type
• Thread Size:18
• Thread Type:Full Thread
• Type:Carriage Bolt
• Product Weight:1.985 lbs.
• Finish:Zinc plating.Hot dipped galvanized steel  Chrome plated grade 5 steel
• Carriage bolts are pushed into a hole the same size as the shank and then hammered in the rest of the way, where the square shoulder locks it firmly in place.  

Following is the Essential Information for your reference.

1.Material: Stainless steel ,carbon steel, brass,alloy /aluminum steel,high strength steel
2.Standard: JIS,DIN,ANSI,ISO,BS,GB,Non standard is availabe and depends on customer's requirements
3.Type: All kinds of flat,pan,button,truss and fillister etc
4Drivers: All kinds of hexagon,phillips,slotted,six-lobe and s type etc
5.Class: 4.8-12.9
6.Surface treatment: Zinc,Nickel,Chrome,Titanium,Black oxide etc
7.Specification: M1.2-M30
8.Process : Cold forging,die casting,metal injection molding
9.Applicaion: Machine,electronics,tools,autos,fitness equipment and other industrial request