Model: 128439

Square Neck Bolt
Description:

2a thread class, right-hand , 0.875 inches thread length, 1.469 inches fastener length, oval head style, 1.000 inches head diameter.

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.875 inches
Fastener Length
Between 1.469 inches and 1.531 inches
Head Style
Oval
Head Diameter
Between 1.000 inches and 1.031 inches
Head Height
Between 0.156 inches and 0.176 inches
Neck Length
Between 0.156 inches and 0.187 inches
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
48000 pounds per square inch
Hardness Rating
79.0 rockwell b and 90.0 rockwell b
Minimum Yield Strength
40000 pounds per square inch
Neck Width
Between 0.307 inches and 0.324 inches
Material
Steel comp 1010
Material Specification
Qq-s-634 federal specification single material response
Surface Treatment
Cadmium or zinc
Thread Series Designator
Unc
NSN
5306-00-012-8439
Part Number
128439
Description
Bolt,square Neck
CAGE
21450

A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Part 128439 NSN 5306-00-012-8439

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15939
FIIG:
A003B0
Concept No.:
App. Key:
CA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
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

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