Model: A2-56X1/2SB

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.434 inches and 0.500 inches
Fastener Length
Between 0.470 inches and 0.500 inches
Head Style
Knurled no. 1
Head Diameter
Between 0.134 inches and 0.140 inches
Head Height
Between 0.083 inches and 0.086 inches
Internal Drive Style
Hexagon
Thread Diameter
0.086 inches
Width Across Flats
0.078 inches
Thready Qty Per Inch (tpi)
56
Min. Tensile Strength (psi)
190000 pounds per square inch
Hardness Rating
38.0 rockwell c and 45.0 rockwell c
Minimum Yield Strength
170000 pounds per square inch
Color
Black
Material
Steel
Surface Treatment
Oxide
Thread Series Designator
Unrc
NSN
5305-01-266-9213
Part Number
A2-56X1/2SB
Description
Screw,cap,socket Head
CAGE
51261

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 A2-56X1/2SB NSN 5305-01-266-9213

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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

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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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