Model: 8756378

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.094 inches and 1.250 inches

Fastener Length

2.500 inches

Head Style

Pan no. 2

Head Diameter

0.938 inches

Head Height

0.281 inches

Shoulder Diameter

0.677 inches first shoulder and 0.687 inches first shoulder

Shoulder Length

0.750 inches first shoulder

Rib Major Diameter

Between 0.677 inches and 0.687 inches

Rib Length

0.688 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.062 inches

Rib Minor Diameter

Between 0.651 inches and 0.656 inches

Rib Quantity

Thread Diameter

0.625 inches

Features Provided

Casehardened

Thready Qty Per Inch (tpi)

Hardness Rating

30.0 rockwell c and 35.0 rockwell c

Shoulder Shape

Ribbed first shoulder

Material

Steel comp 1340 or steel comp 4140 or steel comp 5140 or steel comp 8640

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

Thread Series Designator

Unf

NSN

5306-00-679-9829

Part Number

8756378

Description

Bolt,ribbed Shoulder

CAGE

19207

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 8756378 NSN 5306-00-679-9829

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:

0.3000lbs

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