Bridge Lube Nuts

Bridge Lube Nuts are used primarily in the bridge Bridge Lube Nutsindustry. They come with lubrication applied on the internal threads and on the face of the nut that will be in contact with the joint. The purpose of leaving sides of the nut and opposing face of the nut clean of lubrication is to reduce the amount of labor and safety issues that occur when cleaning the exposed faces of the nut to prepare for painting. The heavy hex nut is double chamfered for general purpose mechanical and structural uses, with A325 and A490 heavy hex structural bolts.

Finish: Mechanically Galvanized, with lubricate on the internal threads and face of the nut.

Grade: A563 DH Heavy Hex Nut

Table X1.1 Nut Compatibility Chart

Grade of BoltFinishNominal SizeA563 Grade and ANSI Nut Style
HexHeavy HexHexHeavy Hex
A307 Grade A & CAny1/4 to 1-1/2A-B,D,DHA,B,C,D,DH,DH3
A307 Grade A & CAny>1-1/2 to 2-AAC,D,DH,DH3
A307 Grade A & CAny>2 to 4-A-C,D,DH,DH3
A307 Grade BAny1/4 to 1-1/2-AB,D,DH B,C,D,DH,DH3
A307 Grade BAny>1-1/2 to 2-AA-
A307 Grade BAny>2 to 4-A--
A325 Type 1Plain1/2 - 1-1/2-C-C3, D, DH, DH3
A325 Type 1Galvanized1/2 - 1-1/2-DH--
A325 Type 3Plain1/2 - 1-1/2-C3-DH3
A354 Grade BCPlain1/4 to 1-1/2-C-C3, D, DH, DH3
A354 Grade BCPlain>1-1/2 to 4-C-C3, D, DH, DH3
A354 Grade BCGalvanized1/4 to 1-1/2-DH--
A354 Grade BCGalvanized>1-1/2 to 4-DH--
A354 Grade BDPlain1/4 to 1-1/2-DH-D, DH, DH3
A354 Grade BDPlain>1-1/2 to 4-DH-DH3
A449Plain1/4 to 1-1/2B-D, DHB,C,D,DH,DH3
A449Plain>1-1/2 to 3-A-C,C3,D,DH,DH3
A449Galvanized1/4 to 1-1/2-DHD, DHD
A449Galvanized>1-1/2 to 3-DH-D
A490 Type 1Plain1/2 - 1-1/2-DH-DH3
A490 Type 3Plain1/2 - 1-1/2-DH3--
A687Plain5/8 - 3-DH-DH, DH3
A687Galvanized5/8 - 3-DH3--
F1554 Grade 55Plain1/4 to 1-1/2A-B,D,DH A,B,C,D,DH,DH3
F1554 Grade 55Plain>1-1/2 to 4-A-C,D,DH,DH3
F1554 Grade 55Galvanized1/4 to 4-A-C,D,DH,DH3
F1554 Grade 105Plain1/4 to 1-1/2D--DH, DH3
F1554 Grade 105Plain>1-1/2 to 3-DH-DH3
F1554 Grade 105Galvanized1/4 to 3-DH-DH3
Source: ASTM A563-07a Appendix X1



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