Model: 642AS0748

Socket Head Cap Screw

Special Features:

Furnished with one o ring

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.449 inches and 0.489 inches
Fastener Length
Between 0.636 inches and 0.676 inches
Head Style
Flat countersunk undercut
Head Diameter
Between 0.4640 inches and 0.5066 inches
Head Height
Between 0.070 inches and 0.073 inches
Locking Feature
Pellet threads
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.1562 inches and 0.1585 inches
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
160000 pounds per square inch
Countersink Angle
100.0 degrees
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Material
Iron alloy 660
Material Specification
Ams5732 assn standard single material response or ams5737 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35, type 1, type 2, type 3 or type 6 federal specification single treatment response
Thread Series Designator
Unjc
NSN
5305-01-078-5070
Part Number
642AS0748
Description
Screw,cap,socket Head
CAGE
30003

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 642AS0748 NSN 5305-01-078-5070

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
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:
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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