Model: 8438732

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.080 inches and 1.110 inches

Fastener Length

Between 2.140 inches and 2.160 inches

Head Style

Flat chamfer

Head Diameter

1.000 inches

Head Height

0.200 inches

Shoulder Diameter

0.520 inches first shoulder and 5.525 inches first shoulder

Shoulder Length

0.780 inches first shoulder

Rib Major Diameter

Between 0.550 inches and 0.560 inches

Rib Length

0.380 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.060 inches

Rib Minor Diameter

Between 0.530 inches and 0.540 inches

Rib Quantity

Thread Diameter

0.437 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Round first shoulder

Material

Steel

Material Specification

Qq-s-624 federal specification single material response

Surface Treatment

Cadmium or zinc

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification 1st treatment response or qq-z-325, type 2, cl 3 federal specification 2nd treatment response

Thread Series Designator

Unf

NSN

5306-00-250-9687

Part Number

8438732

Description

Bolt,ribbed Shoulder

CAGE

19204

An externally threaded fastener whose threaded portion is of one nominal 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.

Part 8438732 NSN 5306-00-250-9687

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16014

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment