Eccentric Head Bolt

Model / MPN: 597778 | NSN: 5306-00-011-2645

An externally threaded fastener the head of which is usually flat with a periphery not concentric to the bolt shank. The head is not designed for wrenching. It may have a drive feature located at the threaded end, which can be used to rotate the screw and eccentric head into a locking position to secure a flanged or groove component.

Product Details

NATO Stock Number

5306-00-011-2645

Sold in multiples of

1 EA

DEMIL

Thread Class

Thread Direction

Right-hand

Fastener Length

Between 0.625 inches and 0.645 inches

Head Diameter

Between 0.480 inches and 0.500 inches

Head Height

Between 0.130 inches and 0.150 inches

Distance From Centerline To Flat

Between 0.123 inches and 0.124 inches

Distance From Center Of Head To Center Of Shank

0.124 inches

Shank Unthreaded Hole Diameter

0.065 inches first hole and 0.072 inches first hole

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Hardness Rating

30.0 rockwell c and 38.0 rockwell c

Material

Steel

Thread Series Designator

Unf

59777 Series Parts

Pricing and Availability

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597778 Cross Reference

597778