changshu huibo railway fastener co.,ltd
railway track material, fastener, Insulator/Dowels/Ferrule, Rail track material, base plate/rail pads, Manufacturer and Supplier - China(CN)
carriage bolt (HB14)
Standard :carriage bolts to A.S.T.M. A-307 , A.S.T.M. A-325 DIN603,604...
Material: alloy steel ,303 and 316 stainless.
Grade: 8.
Spcification :available in through 1-1/2 ,length is not limited
Diameter : round head square neck ,round head short square neck.