For Domestic (for India) Email: sales3@jfengg.com / Phone: +91 9833323564 / +91-22-6639 3672
For Export (for other than India) Email: export3@jfengg.com / Phone: +91-9833323751 / +91-22-23634937
JF Engineering Products LLP

ASME B18.2.1 FASTENERS


Dimensions of ASME B18.2.1 Hex Bolts :
Aluminium Pipe

Nomianal Size or Basic product Diameter Full-Size Body Diameter, E Width Across Flats, F Width Across Corners, G Head Height, H Radius of Fillet, R Thread Length for Bolt Lengths, LT
6 in. & Shorter Over 6 in.
Max. Min. Basic Max. Min. Max. Min. Basic Max. Min. Max. Min. Nom. Nom.
1/4
0.2500
0.260 0.237 7/16 0.438 0.425 0.505 0.484 11/64 0.188 0.150 0.03 0.01 0.750 1.000
5/16
0.3125
0.324 0.298 1/2 0.500 0.484 0.577 0.552 7/32 0.235 0.195 0.03 0.01 0.875 1.125
3/8
0.3750
0.388 0.360 9/16 0.562 0.544 0.650 0.620 1/4 0.268 0.226 0.03 0.01 1.000 1.250
7/16
0.4375
0.452 0.421 5/8 0.625 0.603 0.722 0.687 19/64 0.316 0.272 0.03 0.01 1.125 1.375
1/2
0.5000
0.515 0.482 3/4 0.750 0.725 0.866 0.826 11/32 0.364 0.302 0.03 0.01 1.250 1.500
5/8
0.6250
0.642 0.605 15/16 0.938 0.906 1.083 1.033 27/64 0.444 0.378 0.06 0.02 1.500 1.750
3/4
0.7500
0.768 0.729 1 1/8 1.125 1.088 1.299 1.240 1/2 0.524 0.455 0.06 0.02 1.750 2.000
7/8
0.8750
0.895 0.852 1 5/16 1.312 1.269 1.516 1.447 37/64 0.604 0.531 0.06 0.02 2.000 2.250
1
1.0000
1.022 0.976 1 1/2 1.500 1.450 1.732 1.653 43/64 0.700 0.591 0.09 0.03 2.250 2.500
1 1/8
1.1250
1.149 1.098 1 11/16 1.688 1.631 1.949 1.859 3/4 0.780 0.658 0.09 0.03 2.500 2.750
1 1/4
1.2500
1.277 1.223 1 7/8 1.875 1.812 2.165 2.066 27/32 0.876 0.749 0.09 0.03 2.750 3.000
1 3/8
1.3750
1.404 1.345 2 1/16 2.062 1.994 2.382 2.273 29/32 0.940 0.810 0.09 0.03 3.000 3.250
1 1/2
1.5000
1.531 1.470 2 1/4 2.250 2.175 2.598 2.480 1/ 1.036 0.902 0.09 0.03 3.250 3.500
1 5/8
1.6250
1.658 1.591 2 7/16 2.438 2.356 2.815 2.616 1 3/32 1.116 0.978 0.09 0.03 3.500 3.750
1 3/4
1.7500
1.785 1.716 2 5/8 2.625 2.538 3.031 2.893 1 5/32 1.196 1.054 0.12 0.04 3.750 4.000
1 7/8
1.8750
1.912 1.839 2 13/16 2.812 2.719 3.248 3.099 1 1/4 1.276 1.130 0.12 0.04 4.000 4.250
2
2.000
2.039 1.964 3 3.000 2.9000 3.464 3.306 1 11/32 1.388 1.175 0.12 0.04 4.250 4.500
2 1/4
2.2500
2.305 2.214 3 3/8 3.375 3.262 3.897 3.719 1 1/2 1.548 1.327 0.19 0.06 4.750 5.000
2 1/2
2.5000
2.559 2.461 3 3/4 3.750 3.625 4.330 4.133 1 21/32 1.708 1.479 0.19 0.06 5.250 5.500
2 3/4
2.7500
2.827 2.711 4 1/8 4.125 3.988 4.763 4.546 1 13/16 1.869 1.632 0.19 0.06 5.750 6.000
3
3.000
3.081 2.961 4 1/2 4.500 4.350 5.196 4.959 2 2.060 1.815 0.19 0.06 6.250 6.500
3 1/4
3.2500
3.335 3.210 4 7/8 4.875 4.712 5.629 5.372 2 3/16 2.251 1.936 0.19 0.06 6.750 7.000
3 1/2
3.5000
3.589 3.461 5 1/4 5.250 5.075 6.062 5.786 2 5/16 2.380 2.057 0.19 0.06 7.250 7.500
3 3/4
3.7500
3.858 3.726 5 5/8 5.625 5.437 6.495 6.198 2 1/2 2.572 2.241 0.19 0.06 7.750 8.000
4
4.000
4.111 3.975 6 6.000 5.800 6.928 6.612 2 11/16 2.764 2.424 0.19 0.06 8.250 8.500

Features:

  • High strength
  • High resistance to pitting, crevice corrosion resistance
  • High resistance to stress corrosion cracking, corrosion fatigue and erosion
  • Good sulfide stress corrosion resistance
  • Low thermal expansion and higher heat conductivity than austenitic steels
  • Good workability and weldability.
  • High energy absorption.
  • Dimensional accuracy
  • Excellent finish
  • Durable
  • Leak proof
  • Thermal resistance
  • Chemical resistance

Applications :

  • use in Instrumentation
  • use in Hydraulic & Pneumatic system
  • use in Automotive industries
  • use in Structural Purposes
  • use in Medical
  • use in Pharmaceutical
  • use in Economizers
  • Use in Condenser
  • Use in Furniture industries
  • Use in domestic applications
  • Use in bus body
  • Use in fencing
  • Use in Pulp and paper
  • Use in Offshore construction
  • Use in Food and pharmaceutical processing
  • Use in Desalination and wastewater projects
  • Use in Electrical Submersible Pump

Why Choose Us :

we are able to deliver on time for all grades of Brass Pipe . Our stock house always has storage capacity for keeping lots of order from our clients. We make sure that the packaging of ordered materials is done in the best way.

Although lots of options are available in the market, we still stand apart in the market in the field of manufacturing, packaging and export of our products. What really makes us different from others is our commitment to quality. With a vast experience of over four decades in manufacturing of pipes and tubes, we have great expertise and technical edge for the manufacture.


Our Products