Square Head Bolt
MOQ: 500kgs
-
Product Features:
Size: 1/4”-3”
Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass
Grade: SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9
Thread: M, UNC, UNF
Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G. -
Trade Term & Payment
FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment :
T/T, L/C , D/A , D/P , Western Union,etc -
Packaging Details:
b. bulk in cartons 9"x9"x5" (<=18kg )+ 48CTN/wood solid Pallet
c. according to customer special demand -
Supply Ability & MOQ:
MinimumOrder:
500kgs for each specification -
Market:


Who We are?
- Shanghai Jian & Mei Industry and Trade Co., Ltd. is well equipped with various multi-station cold heading machines and high-medium frequency heating machines imported from Taiwan. JM can manufacture all kinds of fasteners of various head types with the specifications from M6- M56,1/4-2”in diameter, 20-1500 (1”-60”) in length, from Class 4.8 to 12.9 and from A429 Grade 2-8.


Test Report
Each batch of exported products are identified with a unique batch number in the Finished product testing report and steel mill raw material quality inspection report.

- If you need, the test report form the third part is available


Nominal Size or Basic Product Diameter | E | F | G | H | R | LT | |||||||||
Full-size Body Diameter | Width Across Flats | Width Across Corners | Head Height | Radius of Fillet | Thread Length for Bolt Lengths | ||||||||||
6 in.and Shorter | Over 6 in. | ||||||||||||||
Max | Min | Basic | Max | Min | Max | Min | Basic | Max | Min | Max | Nom | Nom | |||
1/4 | 0.2500 | 0.227 | 0.237 | 3/8 | 0.375 | 0.362 | 0.530 | 0.498 | 11/64 | 0.188 | 0.156 | 0.03 | 0.01 | 0.750 | 1.000 |
5/16 | 0.3125 | 0.324 | 0.298 | 1/2 | 0.500 | 0.484 | 0.707 | 0.665 | 13/64 | 0.220 | 0.186 | 0.03 | 0.01 | 0.875 | 1.125 |
3/8 | 0.3750 | 0.388 | 0.360 | 9/16 | 0.562 | 0.544 | 0.795 | 0.747 | 1/4 | 0.268 | 0.232 | 0.03 | 0.01 | 1.000 | 1.250 |
7/16 | 0.4375 | 0.452 | 0.421 | 5/8 | 0.625 | 0.603 | 0.884 | 0.828 | 19/64 | 0.316 | 0.278 | 0.03 | 0.01 | 1.125 | 1.375 |
1/2 | 0.5000 | 0.515 | 0.482 | 3/4 | 0.750 | 0.725 | 1.061 | 0.995 | 21/64 | 0.348 | 0.308 | 0.03 | 0.01 | 1.250 | 1.500 |
5/8 | 0.6250 | 0.642 | 0.605 | 15/16 | 0.938 | 0.906 | 1.326 | 1.244 | 27/64 | 0.444 | 0.400 | 0.06 | 0.02 | 1.500 | 1.750 |
3/4 | 0.7500 | 0.768 | 0.729 | 1-1/8 | 1.125 | 1.088 | 1.591 | 1.494 | 1/2 | 0.524 | 0.476 | 0.06 | 0.02 | 1.750 | 2.000 |
7/8 | 0.8750 | 0.895 | 0.852 | 1-5/16 | 1.312 | 1.269 | 1.856 | 1.742 | 19/32 | 0.620 | 0.568 | 0.06 | 0.02 | 2.000 | 2.250 |
1 | 1.0000 | 1.022 | 0.976 | 1-1/2 | 1.500 | 1.450 | 2.121 | 1.991 | 21/32 | 0.684 | 0.628 | 0.09 | 0.03 | 2.250 | 2.500 |
1-1/8 | 1.1250 | 1.149 | 1.098 | 1-11/16 | 1.688 | 1.631 | 2.386 | 2.239 | 3/4 | 0.780 | 0.720 | 0.09 | 0.03 | 2.500 | 2.750 |
1-1/4 | 1.2500 | 1.277 | 1.223 | 1-7/8 | 1.875 | 1.812 | 2.652 | 2.489 | 27/32 | 0.876 | 0.812 | 0.09 | 0.03 | 2.750 | 3.000 |
1 -3/8 | 1.3750 | 1.404 | 1.345 | 2-1/16 | 2.062 | 1.994 | 2.917 | 2.738 | 29/32 | 0.940 | 0.872 | 0.09 | 0.03 | 3.000 | 3.250 |
1-1/2 | 1.5000 | 1.531 | 1.470 | 2-1/4 | 2.250 | 2.175 | 3.182 | 2.986 | 1 | 1.036 | 0.964 | 0.09 | 0.03 | 3.250 | 3.500 |
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