Model: M-20885-8

Internal Wrenching Bolt

Special Features:

Optional thread series per mil-s-8879 or mil-s-7742

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.270 inches and 0.322 inches
Fastener Length
Between 0.780 inches and 0.812 inches
Head Diameter
Between 0.303 inches and 0.312 inches
Head Height
Between 0.185 inches and 0.190 inches
First Diameter From Head
Between 0.131 inches and 0.141 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.490 inches and 0.510 inches
Internal Drive Style
Hexagon
Thread Diameter
0.190 inches
Width Across Flats
Between 0.1562 inches and 0.1587 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
160000 pounds per square inch
Externally Relieved Body Diameter Quantity
1
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Surface Finish
63.0 microinches threads
Material
Iron alloy 660
Material Specification
Ams5737 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-236-0445
Part Number
M-20885-8
Description
Bolt,internal Wrenching
CAGE
20019

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part M-20885-8 NSN 5306-01-236-0445

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06666
FIIG:
A003B0
Concept No.:
App. Key:
BM
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:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
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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