Model: 427238

Hexagon Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.375 inches
Fastener Length
0.375 inches
Head Style
Hexagon
Head Height
0.188 inches
Width Between Flats
0.438 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
25.0 rockwell c and 34.0 rockwell c
Material
Steel
Surface Treatment
Cadmium or zinc
Thread Series Designator
Unc
Nondefinitive Specification/std Data
Ii type and 10p style
Departure From Cited Document
As modified by head dim and lg
NSN
5305-00-042-7238
Part Number
427238
Description
Screw,cap,hexagon Head
CAGE
21450

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Part 427238 NSN 5305-00-042-7238

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18257
FIIG:
A003B0
Concept No.:
App. Key:
SB
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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