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ASTM A-194 Grade 2 H UNC HEAVY HEX NUTS

ASTM A-194 Grade 2 H UNC HEAVY HEX NUTS manufacturers and suppliers in India

ASTM A194 Grade 2H is medium carbon steel quenched and tempered having proof load stress of 175 ksi . Bhalla Fasteners is the leading 2H nut manufacturer in India manufacturing these high tensile ASTM A194 Grade 2H nuts from Hot Forging process .Normally these 2H nut bears a clear marking on the Fastener face indicating grade 2H. 

Bhalla Fasteners is the best manufacturer , supplier and exporter of ASTM A194 Grade 2h material which includes metals like manganese and silicon with addition of phosphorus,sulphur and carbon. Due to these elements grade 2H nuts have enhanced corrosion resistance and increase strength.These High tensile nuts are used in heavy vibration and high stress applications such as aircraft engine components, automobile engine components,power generation,petrochemicals ,Gas processing,Pharmaceuticals and sea water equipment.In order to evenly distribute the load of the Fastener the ASTM A194 grade 2H nut is used in conjunction with ASTM A193 Hex Bolt .

ASTM A563 grade DH nut may sometimes be substituted for an ASTM A194 grade 2H nut but ASTM A563 nuts are not subjected to heat treatment unlike ASTM A194 grade 2H.

 
Astm A194 grade 2h nut dimensions metric are mentioned below .as follows .
service
Weight Table
SIZE

APPROX PCS PER 50 KGS

5/16" 6600
3/8" 3650
7/16" 2500
1/2" 1690
5/8" 950
3/4" 580
7/8" 395
1" 278
1.1/8" 190
1.1/4" 146
1.3/8" 113
1.1/2" 83
1.5/8" 68
1.3/4" 55
2" 37
2.1/4" 27
2.1/2" 21
2.3/4" 15
3" 11

 

Specification Table
service
ASME SA194 Grade 2H hex nuts Dimensions
 
Nominal Size or Basic Major Thread Diameter F G H
Width
Across Flats
Width
Across Corners
Thickness
Basic Max Min Max Min Basic Max Min
1/4 .2500 7/16 .438 .428 .505 .488 7/32 .226 .212
5/16 .3125 1/2 .500 .489 .577 .557 17/64 .273 .258
7/16 .4375 11/16 .688 .675 .794 .768 3/8 .385 .365
1/2 .5000 3/4 .750 .736 .866 .840 7/16 .448 .427
9/16 .5625 7/8 .875 .861 1.010 .982 31/64 .496 .473
3/4 .7500 1-1/8 1.125 1.088 1.299 1.240 41/64 .665 .617
7/8 .8750 1-5/16 1.312 1.269 1.516 1.447 3/4 .776 .724
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 .999 .939
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138
1-1/2 1.500 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.ASTM A194 GR. 8 1.245
1-3/4 1.7500 2-5/8 2.625 2.538 3.031 2.893 1-1/2 1.540 1.460
2 2.0000 3 3.000 2.900 3.464 3.306 1-23/32 1.763 1.675
2-1/4 2.2500 3-3/8 3.375 3.263 3.897 3.719 1-15/16 1.986 1.890
2-3/4 2.7500 4-1/8 4.125 3.988 4.763 4.546 2-3/8 2.431 2.319

ASTM A194 Grade 2H Hardness properties Inch Product

Class

Diameter, [mm]

Brinell

Hardness

Rockwell Hardness

C Scale

B Scale

2H

To 1.1/2”

248-327

24-35

-

over 1.1/2”

212-327

35 max

95 min