Model: FFB571

Square Neck Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.750 inches
Fastener Length
2.500 inches
Head Style
Button
Head Diameter
0.813 inches
Head Height
0.188 inches
Neck Length
0.281 inches
Thread Diameter
0.375 inches
Features Provided
Square nut
Thready Qty Per Inch (tpi)
16
Neck Width
0.375 inches
Material
Steel
Material Specification
Ff-b-571 federal specification single material response
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416 federal specification 1st treatment response or qq-z-325 federal specification 2nd treatment response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
C2 type
NSN
5306-00-639-3312
Part Number
FFB571
Description
Bolt,square Neck
CAGE
81348

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

Part FFB571 NSN 5306-00-639-3312

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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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