BOLTS. BOLT GRADES Grade determined by number of markings + 2 Low Carbon SteelMedium Carbon Steel (hardened and tempered) Medium or High Carbon Alloy.

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Presentation transcript:

BOLTS

BOLT GRADES Grade determined by number of markings + 2 Low Carbon SteelMedium Carbon Steel (hardened and tempered) Medium or High Carbon Alloy Steel (tempered and hardened)

APPLIED FORCES Shear: Perpendicular to the axis Tension: Parallel to the axis

COMPONENTS Wrench Size Nominal Diameter Root Diameter Grip Length Thread Length Length

ASPECTS Head ShankRunoutThread

THREAD GEOMETRY

THREAD PARTS

NAMING Metric Nominal Diameter – Pitch x Length Example: x 50 In millimeters SAE (Society of Auto Engineers) Nominal Diameter – Threads per inch x Length Example: ½ - 13 x 2 In inches