Ribbed Shoulder Bolt

Model / MPN: 649877 | NSN: 5306-00-732-8294

An externally threaded fastener whose threaded portion is of one diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Product Details

NATO Stock Number

5306-00-732-8294

Sold in multiples of

1 PG

DEMIL

Thread Class

Thread Direction

Left-hand

Thread Length

0.960 inches

Fastener Length

1.420 inches

Head Style

Pan no. 2

Head Diameter

0.820 inches

Head Height

0.160 inches

Shoulder Diameter

0.602 inches first shoulder and 0.605 inches first shoulder

Shoulder Length

0.340 inches first shoulder and 0.350 inches first shoulder

Rib Major Diameter

Between 0.618 inches and 0.628 inches

Rib Length

0.120 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.060 inches

Thread Diameter

0.500 inches

Features Provided

Casehardened

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

110000 pounds per square inch

Hardness Rating

3.0 rockwell c and 21.0 rockwell c

Shoulder Shape

Ribbed first shoulder

Material

Steel comp 1023 or steel comp 1029 or steel comp 1030 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1022 or steel comp 1025

Material Specification

Astm a108 assn standard all material responses or astm a576 assn standard all material responses

Thread Series Designator

Unf

64987 Series Parts

Pricing and Availability

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649877 Cross Reference

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