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Material
Zinc plated grade 5 steel
(1)
Zinc plated grade 8 steel yellow
(1)
Diameter
1/2"
Thread density
20
Length
1-1/2"
Wrench size
3/4"
(2)
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1/2"-20
Hex bolts, Zinc, 1/2"-20 x 1-1/2"
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Hex bolts, Zinc, 1/2"-20 x 1-1/2"
Material
Zinc plated grade 5 steel
A low carbon steel for general use. Zinc plated for moderate corrosion resistance. Grade 5 falls between grade 2 and grade 8 in strength, and is commonly found in automotive applications.
Zinc plated grade 8 steel yellow
A low carbon steel for general use. Zinc plated for moderate corrosion resistance. Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications.
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See also
Metric hex bolts
A bolt with a six sided head.