Ribbed Shoulder Bolt

Model / MPN: 12448496-4 | NSN: 5306-01-439-0282

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

5306-01-439-0282

Sold in multiples of

1 EA

DEMIL

Thread Direction

Right-hand

Thread Length

0.560 inches

Fastener Length

3.160 inches

Head Style

Flat chamfer

Head Diameter

1.310 inches

Head Height

0.310 inches

Shoulder Diameter

0.742 inches second shoulder and 0.750 inches second shoulder

Shoulder Diameter

0.971 inches first shoulder and 0.975 inches first shoulder

Shoulder Length

1.290 inches second shoulder

Shoulder Length

1.310 inches first shoulder

Rib Major Diameter

Between 0.971 inches and 0.975 inches

Rib Length

Between 0.410 inches and 0.470 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.280 inches

Rib Quantity

Thread Diameter

0.375 inches

Shoulder Shape

Round first shoulder

Shoulder Shape

Round second shoulder

Material

Steel

Material Specification

Astma304 assn standard single material response

Surface Treatment

Zinc

Surface Treatment Specification

Astmb633, tyii, class fe/zn 5 assn standard single treatment response

Thread Series Designator

Npt

12448496 Series Parts

Pricing and Availability

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12448496-4 Cross Reference

RCSK15105-4