SAE J429 Grade 8 Black UNF Hex Head Bolts M27
Bolts that are larger in diameter or longer in length are band saw cut. Next, A hex head is hot-forged on one end of the steel rod. An induction heating coil heats the end of the round bar to approximately 2000 degrees Fahrenheit. A National Upsetter is used to forge the heated end of the rod into a hex shaped head.Hex, pan, truss, button, socket cap, and round head screws are measured from right under the head to the end of the threads. Flat head screws are measured from the top of the head to the tip of the threads. Oval head screws are measured from the beginning of the undercut on the head to the tip of the threads.
| Standard: ASME/ANSI B 18.2.1, IFI149,DIN931, DIN933, DIN558, DIN960, DIN961, DIN558, ISO4014 |
| Size: 1/4”-3”, M5-M64 |
| Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass |
| Grade: ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9; SAE J429 Gr.2, 5,8;A2-70,A4-70 |
| Thread: M, UNC, UNF,UN8 |
| Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G,etc. |
Packaging Details: a. bulk in cartons (<=25kg )+ 36CTN/wood solid Pallet
b. bulk in cartons 9"x9"x5" (<=18kg )+ 48CTN/wood solid Pallet
Supply Ability:1000 tons per month
MinimumOrder:200kgs for each specification
Trade Term:FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment :T/T, L/C , D/A , D/P , Western Union,etc
Market:South&north Amrica/Europe/ etc.
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