Model: B4040644-2

Panel Screw Assembly

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
1.040 inches
Head Style
Hexagon
Head Height
Between 0.105 inches and 0.120 inches
Width Between Flats
Between 0.367 inches and 0.375 inches
Internal Drive Style
Slot
Material Accommodated Thickness
Between 0.188 inches and 0.250 inches
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
140000 pounds per square inch
Material
Steel comp 301 secondary washer or steel comp 302 secondary washer or steel comp 302b secondary washer or steel comp 303 secondary washer or steel comp 303se secondary washer or steel comp 304 secondary washer or steel comp 304l secondary washer or steel comp 305 secondary washer or steel comp 308 secondary washer or steel comp 309 secondary washer or steel comp 309s secondary washer or steel comp 310 secondary washer or steel comp 310s secondary washer or steel comp 314 secondary washer or steel comp 316 secondary washer or steel comp 316l secondary washer or steel comp 317 secondary washer or steel comp 321 secondary washer or steel comp 347 secondary washer or steel comp 348 secondary washer or steel comp 384 secondary washer or steel comp 385 secondary washer
Material Specification
Ams5732 assn standard single material response fastener
Material Specification
Astm a580 assn standard single material response spring
Material Specification
Mil-s-5059 military specification single material response primary washer
Material Specification
Qq-a-225/8 federal specification single material response stand-off
Surface Treatment
Anodize stand-off
Surface Treatment
Passivate fastener
Surface Treatment
Passivate primary washer
Surface Treatment
Passivate secondary washer
Surface Treatment
Passivate spring
Surface Treatment Specification
Mil-a-8625, type1, class 1 military specification single treatment response stand-off
Surface Treatment Specification
Qq-p-35 federal specification single treatment response fastener
Surface Treatment Specification
Qq-p-35 federal specification single treatment response primary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response secondary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response spring
Thread Series Designator
Unf
NSN
5305-01-243-9415
Part Number
B4040644-2
Description
Screw Assembly,panel
CAGE

Part B4040644-2 NSN 5305-01-243-9415

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
33044
FIIG:
A003B0
Concept No.:
App. Key:
SU
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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