Model: D20418-41

Panel Screw Assembly

Special Features:

Threaded hole in head 440 unc-2b; also furnished nut made 4-40 unc-2b 0.172-0.202 in. Dia; 0.057-0.066 in. Lg; lockwasher made of phpspher bronze per astm b139; gold plated; 0.209-0.224 in. Dia; 0.26-0.036 in. Lg 2 reqd

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.227 inches and 0.327 inches
Fastener Length
Between 0.297 inches and 0.327 inches
Head Style
Flat chamfer
Head Diameter
Between 0.172 inches and 0.202 inches
Head Height
Between 0.172 inches and 0.202 inches
Internal Drive Style
Slot
Thread Diameter
0.112 inches
Thready Qty Per Inch (tpi)
40
Material
Copper alloy 360
Material Specification
Qq-b-626 comp 22 federal specification single material response
Precious Material And Location
gold
Precious Material
Gold
Surface Treatment
Gold
Surface Treatment Specification
Mil-g-45204 type 2 cl 2 military specification single treatment response
Thread Series Designator
Unc
NSN
5305-00-104-5062
Part Number
D20418-41
Description
Screw Assembly,panel
CAGE
71468

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Part D20418-41 NSN 5305-00-104-5062

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:
G
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:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7415338550
  • SITC: 69433
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Other copper screws (not for wood) bolts and nuts

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