Model: 2-18559-01

Panel Screw Assembly

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.203 inches
Fastener Length
0.535 inches
Head Style
Flat countersunk
Head Diameter
0.317 inches
Internal Drive Style
Cross recess type 1
Material Accommodated Thickness
0.040 inches
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
140000 pounds per square inch
Hardness Rating
34.0 rockwell c and 38.0 rockwell c
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Material
Copper alloy 360 stand-off
Material
Steel comp 4037 fastener
Material Specification
Mil-s-8695 military specification single material response fastener
Material Specification
Qq-b-626 federal specification single material response stand-off
Surface Treatment
Cadmium fastener
Surface Treatment
Cadmium stand-off
Surface Treatment Specification
Qq-p-416, ty1 cl 2 federal specification single treatment response fastener
Surface Treatment Specification
Qq-p-416, ty1 cl 2 federal specification single treatment response stand-off
Thread Series Designator
Unc
NSN
5305-01-334-0526
Part Number
2-18559-01
Description
Screw Assembly,panel
CAGE
33604

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 2-18559-01 NSN 5305-01-334-0526

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:
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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