UNC / UNF G8 Hex Bolt

A tempered Alloy Steel. Grade 8 is stronger than grade 5, and is usually used in high strength automobile applications. The finish is unplated.


Standard Specification: SAE J429 Grade 8

Material: Alloy Steel

Dimension: Normal Hex

Marking: Six Radical Lines

Carbon: 0.03-0.48 / 0.35-0.53

Manganese: 1.65-

Sulphur: -0.04

Silicon: 0.60-

Chromium: 3.99-

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