Model: FFB561

Lag Screw

Properties:

Fastener Length
Between 5.900 inches and 6.000 inches
Head Style
Square
Head Height
Between 0.400 inches and 0.444 inches
Width Between Flats
Between 0.906 inches and 0.937 inches
Shoulder Diameter
0.605 inches first shoulder and 0.642 inches first shoulder
Shoulder Length
0.312 inches first shoulder
Min. Tensile Strength (psi)
55000 pounds per square inch
Hardness Rating
60.0 rockwell b
Nonmachine Thread Style
Cone point (type bp) or gimlet point (type a, ab or ba)
Nonmachine Thread Diameter
0.625 inches
Shoulder Shape
Round first shoulder
Material
Steel
Material Specification
Astm a307-68, gr a assn standard single material response
Nondefinitive Specification/std Data
1 type or 2 type and 2 style and b grade
NSN
5305-00-252-1538
Part Number
FFB561
Description
Screw,lag
CAGE
81348

An externally threaded fastener having a square or hexagon head and with a continuous thread (wood screw type or fetter type) extending from a gimlet or cone point for a distance of slightly more than one-half the length of the screw.

Part FFB561 NSN 5305-00-252-1538

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
36433
FIIG:
A003B0
Concept No.:
App. Key:
BQ
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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