Model: 13000-256F28

Socket Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.392 inches and 0.448 inches
Fastener Length
Between 0.428 inches and 0.448 inches
Head Style
Flat chamfer
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
Between 0.076 inches and 0.078 inches
Thready Qty Per Inch (tpi)
56
Min. Tensile Strength (psi)
70000 pounds per square inch
Hardness Rating
80.0 rockwell b and 85.0 rockwell b
Material
Steel comp 303
Material Specification
Astm a582 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-t-704 military specification single treatment response
Thread Series Designator
Unf
NSN
5305-01-112-7903
Part Number
13000-256F28
Description
Screw,cap,socket Head
CAGE
1K426

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 13000-256F28 NSN 5305-01-112-7903

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

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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