Model: FRB7500-4-B-2

Panel Screw Assembly

Special Features:

Head vertically knurled

Properties:

Thread Class
2a
Thread Direction
Right-hand
Fastener Length
Between 0.356 inches and 0.386 inches
Head Style
Knurled no. 4
Head Diameter
Between 0.310 inches and 0.340 inches
Head Height
Between 0.358 inches and 0.388 inches
Internal Drive Style
Slot
Material Accommodated Thickness
Between 0.032 inches and 0.093 inches
Thread Diameter
0.112 inches
Thready Qty Per Inch (tpi)
40
Material
Aluminum alloy 6061 head
Material
Aluminum alloy 6061 stand-off
Material
Steel comp 301 primary washer
Material
Steel comp 301 secondary washer
Material
Steel comp 302 fastener or steel comp 304 fastener or steel comp 305 fastener or steel comp 316 fastener or steel comp 321 fastener or steel comp 347 fastener or steel comp 384 fastener or steel comp 385 fastener
Material
Steel comp 302 spring
Material Specification
Astm a493 assn standard all material responses fastener
Material Specification
Mil-s-5059 military specification single material response primary washer
Material Specification
Mil-s-5059 military specification single material response secondary washer
Material Specification
Qq-a-225/8 federal specification single material response head
Material Specification
Qq-a-225/8 federal specification single material response stand-off
Material Specification
Qq-w-423 cond b federal specification single material response spring
Surface Treatment
Anodize head
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 type 1 class 1 military specification single treatment response head
Surface Treatment Specification
Mil-a-8625 type 1 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
Unc
NSN
5305-01-137-7052
Part Number
FRB7500-4-B-2
Description
Screw Assembly,panel
CAGE
0HDW7

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 FRB7500-4-B-2 NSN 5305-01-137-7052

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:
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: 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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