Gi A307 HB
Gi A307 HB ST
Gi A307 HB
Gi A307 HB ST

Galvanized Iron A307 Hexagonal Bolt

Galvanized Iron A307 Hexagonal Bolts are durable fasteners designed to provide secure and long-lasting connections in construction and industrial applications. Manufactured from Grade A307 steel with a galvanized coating, these bolts offer enhanced resistance to corrosion, making them suitable for outdoor and high-moisture environments. Their hexagonal head design ensures easy installation with standard tools.

Category:

Technical Usage

These bolts are commonly used in structural framing, securing heavy equipment, and anchoring applications. They are suitable for use in bridges, railings, and outdoor assemblies where corrosion resistance is essential. Their compatibility with washers and nuts makes them versatile for various assembly requirements.

Technical Specs

Parameter Specification
Material A307 Steel
Coating Galvanized (Zinc Coated)
Thread Type Unified National Coarse (UNC)
Sizes Available 1/4″ (6mm) to 3/4″ (19mm)diameter
Length Range 3/8″ (9.5mm) to 8″ (203.2mm)
Compliance Standard ASTM A307

Types of Item

  1. Fully Threaded Bolts
  2. Partially Threaded Bolts
  3. Heavy Hex Bolts
  4. Custom Length Options

History

The development of A307 hexagonal bolts traces back to the early industrial era, where standardization in fastener manufacturing became critical for infrastructure and mechanical reliability. The addition of galvanized coatings gained prominence in the mid-20th century to combat corrosion in challenging environments. Today, these bolts are widely recognized for their versatility and compliance with ASTM standards.

Galvanized A307 Hexagonal Bolt (BT)

CodeDescriptionDiameterTPIThread LengthPrice
#GI A307 Hex Bolt1/4"(6.35mm)3/8" (9.525mm)20TPIFull Thread₱0.68
#GI A307 Hex Bolt1/4"(6.35mm)1/2" (12.7mm)20TPIFull Thread₱0.77
#GI A307 Hex Bolt1/4"(6.35mm)5/8" (15.875mm)20TPIFull Thread₱0.84
#GI A307 Hex Bolt1/4"(6.35mm)3/4" (19.05mm)20TPIFull Thread₱0.95
#GI A307 Hex Bolt1/4"(6.35mm)1" (25.4mm)20TPIFull Thread₱1.12
#GI A307 Hex Bolt1/4"(6.35mm)1-1/4" (31.75mm)20TPIFull Thread₱1.34
#GI A307 Hex Bolt1/4"(6.35mm)1-1/2" (38.1mm)20TPIFull Thread₱1.58
#GI A307 Hex Bolt1/4"(6.35mm)1-3/4" (44.45mm)20TPIFull Thread₱1.79
#GI A307 Hex Bolt1/4"(6.35mm)2" (50.8mm)20TPIFull Thread₱2.00
#GI A307 Hex Bolt1/4"(6.35mm)2-1/4" (57.15mm)20TPIStandard Thread₱2.23
#GI A307 Hex Bolt1/4"(6.35mm)2-1/2" (63.5mm)20TPIStandard Thread₱2.46
#GI A307 Hex Bolt1/4"(6.35mm)2-3/4" (69.85mm)20TPIStandard Thread₱2.68
#GI A307 Hex Bolt1/4"(6.35mm)3" (76.2mm)20TPIStandard Thread₱2.90
#GI A307 Hex Bolt1/4"(6.35mm)3-1/4" (82.55mm)20TPIStandard Thread₱3.12
#GI A307 Hex Bolt1/4"(6.35mm)3-1/2" (88.9mm)20TPIStandard Thread₱3.36
#GI A307 Hex Bolt1/4"(6.35mm)3-3/4" (95.25mm)20TPIStandard Thread₱3.57
#GI A307 Hex Bolt1/4"(6.35mm)4" (101.6mm)20TPIStandard Thread₱3.78
#GI A307 Hex Bolt1/4"(6.35mm)4-1/2" (114.3mm)20TPIStandard Thread₱4.23
#GI A307 Hex Bolt1/4"(6.35mm)5" (127mm)20TPIStandard Thread₱4.68
#GI A307 Hex Bolt1/4"(6.35mm)5-1/2" (139.7 mm)20TPIStandard Thread₱5.12
#GI A307 Hex Bolt1/4"(6.35mm)6" (152.4 mm)20TPIStandard Thread₱5.57
#GI A307 Hex Bolt5/16"(7.94mm)1/2" (12.7mm)18TPIFull Thread₱1.29
#GI A307 Hex Bolt5/16"(7.94mm)5/8" (15.875mm)18TPIFull Thread₱1.42
#GI A307 Hex Bolt5/16"(7.94mm)3/4" (19.05mm)18TPIFull Thread₱1.55
#GI A307 Hex Bolt5/16"(7.94mm)1" (25.4mm)18TPIFull Thread₱1.83
#GI A307 Hex Bolt5/16"(7.94mm)1-1/4" (31.75mm)18TPIFull Thread₱2.17
#GI A307 Hex Bolt5/16"(7.94mm)1-1/2" (38.1mm)18TPIFull Thread₱2.52
#GI A307 Hex Bolt5/16"(7.94mm)1-3/4" (44.45mm)18TPIFull Thread₱2.87
#GI A307 Hex Bolt5/16"(7.94mm)2" (50.8mm)18TPIFull Thread₱3.21
#GI A307 Hex Bolt5/16"(7.94mm)2-1/4" (57.15mm)18TPIStandard Thread₱3.57
#GI A307 Hex Bolt5/16"(7.94mm)2-1/2" (63.5mm)18TPIStandard Thread₱3.91
#GI A307 Hex Bolt5/16"(7.94mm)2-3/4" (69.85mm)18TPIStandard Thread₱4.25
#GI A307 Hex Bolt5/16"(7.94mm)3" (76.2mm)18TPIStandard Thread₱4.60
#GI A307 Hex Bolt5/16"(7.94mm)3-1/4" (82.55mm)18TPIStandard Thread₱4.94
#GI A307 Hex Bolt5/16"(7.94mm)3-1/2" (88.9mm)18TPIStandard Thread₱5.29
#GI A307 Hex Bolt5/16"(7.94mm)3-3/4" (95.25mm)18TPIStandard Thread₱5.64
#GI A307 Hex Bolt5/16"(7.94mm)4" (101.6mm)18TPIStandard Thread₱5.99
#GI A307 Hex Bolt5/16"(7.94mm)4-1/2" (114.3mm)18TPIStandard Thread₱6.68
#GI A307 Hex Bolt5/16"(7.94mm)5" (127mm)18TPIStandard Thread₱7.37
#GI A307 Hex Bolt5/16"(7.94mm)5-1/2" (139.7 mm)18TPIStandard Thread₱8.06
#GI A307 Hex Bolt5/16"(7.94mm)6" (152.4 mm)18TPIStandard Thread₱8.76
#GI A307 Hex Bolt3/8"(9.525mm)1/2" (12.7mm)16TPIFull Thread₱1.89
#GI A307 Hex Bolt3/8"(9.525mm)5/8" (15.875mm)16TPIFull Thread₱2.10
#GI A307 Hex Bolt3/8"(9.525mm)3/4" (19.05mm)16TPIFull Thread₱2.29
#GI A307 Hex Bolt3/8"(9.525mm)1" (25.4mm)16TPIFull Thread₱2.69
#GI A307 Hex Bolt3/8"(9.525mm)1-1/4" (31.75mm)16TPIFull Thread₱3.13
#GI A307 Hex Bolt3/8"(9.525mm)1-1/2" (38.1mm)16TPIFull Thread₱3.63
#GI A307 Hex Bolt3/8"(9.525mm)1-3/4" (44.45mm)16TPIFull Thread₱4.14
#GI A307 Hex Bolt3/8"(9.525mm)2" (50.8mm)16TPIFull Thread₱4.62
#GI A307 Hex Bolt3/8"(9.525mm)2-1/4" (57.15mm)16TPIStandard Thread₱5.13
#GI A307 Hex Bolt3/8"(9.525mm)2-1/2" (63.5mm)16TPIStandard Thread₱5.63
#GI A307 Hex Bolt3/8"(9.525mm)2-3/4" (69.85mm)16TPIStandard Thread₱6.13
#GI A307 Hex Bolt3/8"(9.525mm)3" (76.2mm)16TPIStandard Thread₱6.64
#GI A307 Hex Bolt3/8"(9.525mm)3-1/4" (82.55mm)16TPIStandard Thread₱7.13
#GI A307 Hex Bolt3/8"(9.525mm)3-1/2" (88.9mm)16TPIStandard Thread₱7.63
#GI A307 Hex Bolt3/8"(9.525mm)3-3/4" (95.25mm)16TPIStandard Thread₱8.13
#GI A307 Hex Bolt3/8"(9.525mm)4" (101.6mm)16TPIStandard Thread₱8.63
#GI A307 Hex Bolt3/8"(9.525mm)4-1/2" (114.3mm)16TPIStandard Thread₱9.63
#GI A307 Hex Bolt3/8"(9.525mm)5" (127mm)16TPIStandard Thread₱10.64
#GI A307 Hex Bolt3/8"(9.525mm)5-1/2" (139.7 mm)16TPIStandard Thread₱11.63
#GI A307 Hex Bolt3/8"(9.525mm)6" (152.4 mm)16TPIStandard Thread₱12.62
#GI A307 Hex Bolt7/16"(11.11mm)3/4" (19.05mm)14TPIFull Thread₱3.28
#GI A307 Hex Bolt7/16"(11.11mm)1" (25.4mm)14TPIFull Thread₱3.82
#GI A307 Hex Bolt7/16"(11.11mm)1-1/4" (31.75mm)14TPIFull Thread₱4.36
#GI A307 Hex Bolt7/16"(11.11mm)1-1/2" (38.1mm)14TPIFull Thread₱5.04
#GI A307 Hex Bolt7/16"(11.11mm)1-3/4" (44.45mm)14TPIFull Thread₱5.72
#GI A307 Hex Bolt7/16"(11.11mm)2" (50.8mm)14TPIFull Thread₱6.41
#GI A307 Hex Bolt7/16"(11.11mm)2-1/4" (57.15mm)14TPIStandard Thread₱7.09
#GI A307 Hex Bolt7/16"(11.11mm)2-1/2" (63.5mm)14TPIStandard Thread₱7.77
#GI A307 Hex Bolt7/16"(11.11mm)2-3/4" (69.85mm)14TPIStandard Thread₱8.45
#GI A307 Hex Bolt7/16"(11.11mm)3" (76.2mm)14TPIStandard Thread₱9.14
#GI A307 Hex Bolt7/16"(11.11mm)3-1/4" (82.55mm)14TPIStandard Thread₱9.82
#GI A307 Hex Bolt7/16"(11.11mm)3-1/2" (88.9mm)14TPIStandard Thread₱10.50
#GI A307 Hex Bolt7/16"(11.11mm)3-3/4" (95.25mm)14TPIStandard Thread₱11.18
#GI A307 Hex Bolt7/16"(11.11mm)4" (101.6mm)14TPIStandard Thread₱11.87
#GI A307 Hex Bolt7/16"(11.11mm)4-1/2" (114.3mm)14TPIStandard Thread₱13.23
#GI A307 Hex Bolt7/16"(11.11mm)5" (127mm)14TPIStandard Thread₱14.60
#GI A307 Hex Bolt7/16"(11.11mm)5-1/2" (139.7 mm)14TPIStandard Thread₱15.96
#GI A307 Hex Bolt7/16"(11.11mm)6" (152.4 mm)14TPIStandard Thread₱17.33
#GI A307 Hex Bolt1/2"(12.7mm)1" (25.4mm)13TPIFull Thread₱5.94
#GI A307 Hex Bolt1/2"(12.7mm)1-1/4" (31.75mm)13TPIFull Thread₱6.67
#GI A307 Hex Bolt1/2"(12.7mm)1-1/2" (38.1mm)13TPIFull Thread₱7.46
#GI A307 Hex Bolt1/2"(12.7mm)1-3/4" (44.45mm)13TPIFull Thread₱8.36
#GI A307 Hex Bolt1/2"(12.7mm)2" (50.8mm)13TPIFull Thread₱9.24
#GI A307 Hex Bolt1/2"(12.7mm)2-1/4" (57.15mm)13TPIStandard Thread₱10.13
#GI A307 Hex Bolt1/2"(12.7mm)2-1/2" (63.5mm)13TPIStandard Thread₱11.03
#GI A307 Hex Bolt1/2"(12.7mm)2-3/4" (69.85mm)13TPIStandard Thread₱11.92
#GI A307 Hex Bolt1/2"(12.7mm)3" (76.2mm)13TPIStandard Thread₱12.81
#GI A307 Hex Bolt1/2"(12.7mm)3-1/4" (82.55mm)13TPIStandard Thread₱13.69
#GI A307 Hex Bolt1/2"(12.7mm)3-1/2" (88.9mm)13TPIStandard Thread₱14.58
#GI A307 Hex Bolt1/2"(12.7mm)3-3/4" (95.25mm)13TPIStandard Thread₱15.47
#GI A307 Hex Bolt1/2"(12.7mm)4" (101.6mm)13TPIStandard Thread₱16.36
#GI A307 Hex Bolt1/2"(12.7mm)4-1/2" (114.3mm)13TPIStandard Thread₱18.14
#GI A307 Hex Bolt1/2"(12.7mm)5" (127mm)13TPI2"(50mm)₱19.92
#GI A307 Hex Bolt1/2"(12.7mm)5-1/2" (139.7 mm)13TPIStandard Thread₱21.70
#GI A307 Hex Bolt1/2"(12.7mm)6" (152.4 mm)13TPIStandard Thread₱23.49
#GI A307 Hex Bolt9/16"(14.29mm)1" (25.4mm)12TPIFull Thread₱7.28
#GI A307 Hex Bolt9/16"(14.29mm)1-1/4" (31.75mm)12TPIFull Thread₱8.19
#GI A307 Hex Bolt9/16"(14.29mm)1-1/2" (38.1mm)12TPIFull Thread₱9.11
#GI A307 Hex Bolt9/16"(14.29mm)1-3/4" (44.45mm)12TPIFull Thread₱10.24
#GI A307 Hex Bolt9/16"(14.29mm)2" (50.8mm)12TPIFull Thread₱11.36
#GI A307 Hex Bolt9/16"(14.29mm)2-1/4" (57.15mm)12TPIStandard Thread₱12.50
#GI A307 Hex Bolt9/16"(14.29mm)2-1/2" (63.5mm)12TPIStandard Thread₱13.62
#GI A307 Hex Bolt9/16"(14.29mm)2-3/4" (69.85mm)12TPIStandard Thread₱14.75
#GI A307 Hex Bolt9/16"(14.29mm)3" (76.2mm)12TPIStandard Thread₱15.89
#GI A307 Hex Bolt9/16"(14.29mm)3-1/4" (82.55mm)12TPIStandard Thread₱17.01
#GI A307 Hex Bolt9/16"(14.29mm)3-1/2" (88.9mm)12TPIStandard Thread₱18.14
#GI A307 Hex Bolt9/16"(14.29mm)3-3/4" (95.25mm)12TPIStandard Thread₱19.27
#GI A307 Hex Bolt9/16"(14.29mm)4" (101.6mm)12TPIStandard Thread₱20.40
#GI A307 Hex Bolt9/16"(14.29mm)4-1/2" (114.3mm)12TPIStandard Thread₱22.65
#GI A307 Hex Bolt9/16"(14.29mm)5" (127mm)12TPIStandard Thread₱24.91
#GI A307 Hex Bolt9/16"(14.29mm)5-1/2" (139.7 mm)12TPIStandard Thread₱27.16
#GI A307 Hex Bolt9/16"(14.29mm)6" (152.4 mm)12TPIStandard Thread₱29.43
#GI A307 Hex Bolt5/8"(15.875mm)1" (25.4mm)11TPIFull Thread₱9.77
#GI A307 Hex Bolt5/8"(15.875mm)1-1/4" (31.75mm)11TPIFull Thread₱10.92
#GI A307 Hex Bolt5/8"(15.875mm)1-1/2" (38.1mm)11TPIFull Thread₱12.05
#GI A307 Hex Bolt5/8"(15.875mm)1-3/4" (44.45mm)11TPIFull Thread₱13.31
#GI A307 Hex Bolt5/8"(15.875mm)2" (50.8mm)11TPIFull Thread₱14.70
#GI A307 Hex Bolt5/8"(15.875mm)2-1/4" (57.15mm)11TPIStandard Thread₱16.09
#GI A307 Hex Bolt5/8"(15.875mm)2-1/2" (63.5mm)11TPIFull Thread₱17.48
#GI A307 Hex Bolt5/8"(15.875mm)2-3/4" (69.85mm)11TPIStandard Thread₱18.87
#GI A307 Hex Bolt5/8"(15.875mm)3" (76.2mm)11TPIFull Thread₱20.27
#GI A307 Hex Bolt5/8"(15.875mm)3-1/4" (82.55mm)11TPIStandard Thread₱21.65
#GI A307 Hex Bolt5/8"(15.875mm)3-1/2" (88.9mm)11TPIStandard Thread₱23.04
#GI A307 Hex Bolt5/8"(15.875mm)3-3/4" (95.25mm)11TPIStandard Thread₱24.36
#GI A307 Hex Bolt5/8"(15.875mm)4" (101.6mm)11TPI1-1/2"(38.1mm)₱25.81
#GI A307 Hex Bolt5/8"(15.875mm)4-1/2" (114.3mm)11TPIStandard Thread₱28.59
#GI A307 Hex Bolt5/8"(15.875mm)5" (127mm)11TPI3"(76.2mm)₱31.37
#GI A307 Hex Bolt5/8"(15.875mm)5-1/2" (139.7 mm)11TPIStandard Thread₱34.15
#GI A307 Hex Bolt5/8"(15.875mm)6" (152.4 mm)11TPIFull Thread₱36.93
#GI A307 Hex Bolt3/4"(19.05mm)1" (25.4mm)10TPIStandard Thread₱15.77
#GI A307 Hex Bolt3/4"(19.05mm)1-1/4" (31.75mm)10TPIStandard Thread₱17.43
#GI A307 Hex Bolt3/4"(19.05mm)1-1/2" (38.1mm)10TPIStandard Thread₱19.11
#GI A307 Hex Bolt3/4"(19.05mm)1-3/4" (44.45mm)10TPIStandard Thread₱20.79
#GI A307 Hex Bolt3/4"(19.05mm)2" (50.8mm)10TPIStandard Thread₱22.63
#GI A307 Hex Bolt3/4"(19.05mm)2-1/4" (57.15mm)10TPIFull Thread₱24.63
#GI A307 Hex Bolt3/4"(19.05mm)2-1/2" (63.5mm)10TPIStandard Thread₱26.64
#GI A307 Hex Bolt3/4"(19.05mm)2-3/4" (69.85mm)10TPIStandard Thread₱28.64
#GI A307 Hex Bolt3/4"(19.05mm)3" (76.2mm)10TPIFull Thread₱30.66
#GI A307 Hex Bolt3/4"(19.05mm)3-1/4" (82.55mm)10TPIStandard Thread₱32.66
#GI A307 Hex Bolt3/4"(19.05mm)3-1/2" (88.9mm)10TPIFull Thread₱34.65
#GI A307 Hex Bolt3/4"(19.05mm)3-3/4" (95.25mm)10TPIStandard Thread₱36.65
#GI A307 Hex Bolt3/4"(19.05mm)4" (101.6mm)10TPIStandard Thread₱38.66
#GI A307 Hex Bolt3/4"(19.05mm)4-1/2" (114.3mm)10TPIStandard Thread₱42.67
#GI A307 Hex Bolt3/4"(19.05mm)5" (127mm)10TPI3-1/4"(82.55mm)₱46.68
#GI A307 Hex Bolt3/4"(19.05mm)5-1/2" (139.7 mm)10TPIStandard Thread₱50.69
#GI A307 Hex Bolt3/4"(19.05mm)6" (152.4 mm)10TPIStandard Thread₱54.68

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