Model: BACB30KK8-4

Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.395 inches

Fastener Length

0.645 inches

Head Style

Flat chamfer

Head Diameter

Between 0.387 inches and 0.412 inches

Head Height

Between 0.059 inches and 0.069 inches

Shoulder Diameter

0.279 inches first shoulder and 0.280 inches first shoulder

Shoulder Length

0.740 inches first shoulder and 0.760 inches first shoulder

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Hardness Rating

31.0 rockwell c

Shoulder Shape

Round first shoulder

Material

Steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740

Material Specification

Mil-s-6758 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-6049 military specification 4th material response

Surface Treatment

Cadmium

Thread Series Designator

Unjf

NSN

5306-00-401-7978

Part Number

BACB30KK8-4

Description

Bolt,shoulder

CAGE

81205

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part BACB30KK8-4 NSN 5306-00-401-7978

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04905

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:

0.1000lbs

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