Heavy Cap Screw Or Hex Bolts
Jiangsu Zhenya Special Screw Co.,Ltd is one of the leading China heavy cap screw or hex bolts manufacturers and suppliers,Website:, as a professional company, our productive factory is able to produce CE certification heavy cap screw or hex bolts at both high quality and low price. Welcome to buy discount and cheap, or wholesale products from us.
these bolts have shorter thread lengths than standard heavy hex bolts.hex head that is larger than a standard hex head. These specifications include: A193, A320 and A307B also A325 and A490
Heavy hex bolts can be used for many different applications that include construction materials for projects such as docks, bridges, highway structures, and buildings, fastening wood, steel, IT’S with forged heads are also commonly used as headed anchor bolts.
Heavy Hex Screws, ASTM A193 B7, Plain
The information below lists the required dimensional, chemical and physical characteristics of the fasteners in this purchase order. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Unless otherwise specified, all referenced consensus standards must be adhered to in their entirety.
E
F
H
Nominal Size or
Full-Size Body
Basic Product
Width Across Flats
Head Height
Diameter
Diameter
Max.
Min.
Max.
Min.
Max.
Min.
3/8
0.3750
0.375
0.360
0.688
0.669
0.243
0.226
1/2
0.5000
0.500
0.482
0.875
0.850
0.323
0.302
5/8
0.6250
0.625
0.605
1.062
1.031
0.403
0.378
3/4
0.7500
0.750
0.729
1.250
1.212
0.483
0.455
7/8
0.8750
0.875
0.852
1.438
1.394
0.563
0.531
1
1.0000
1.000
0.976
1.625
1.575
0.627
0.591
1-1/8
1.1250
1.125
1.098
1.812
1.756
0.718
0.658
1-1/4
1.2500
1.250
1.223
2.000
1.938
0.813
0.749
1-3/8
1.3750
1.404
1.345
2.188
2.119
0.878
0.81
1-1/2
1.5000
1.531
1.470
2.375
2.300
0.974
0.902
1-3/4
1.7500
1.785
1.716
2.750
2.662
1.134
1.054
2
2.0000
2.039
1.964
3.125
3.025
1.263
1.175
2-1/4
2.2500
2.305
2.214
3.500
3.388
1.423
1.327
2-1/2
2.5000
2.559
2.461
3.875
3.750
1.583
1.479
2-3/4
2.7500
2.827
2.711
4.250
4.112
1.744
1.632
3
3.0000
3.081
2.961
4.625
4.475
1.935
1.815
Specification Requirements:
• Dimensions:
3/8” see dimensions above
1/2” to 1-1/4” shall be Heavy Hex Cap Screw- ASME B18.2.1
Larger diameters – Heavy hex cap screws with the following exception
per ASTM A193, the maximum body diameter and radius of fillet may
be the same as for heavy hex bolt series. For sizes larger than 1-1/4”
nominal diameter.
• Material &
Mechanical Properties:ASTM A193/A193M and ASME SA193/SA193M
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