Model: SC-2021-15

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.929 inches and 1.000 inches
Fastener Length
1.000 inches
Head Style
Flat chamfer
Head Diameter
Between 0.480 inches and 0.531 inches
Head Height
0.161 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
0.156 inches
Thready Qty Per Inch (tpi)
28
Countersink Angle
Between 80.0 degrees and 84.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
Thread Series Designator
Unf
NSN
5305-01-184-3743
Part Number
SC-2021-15
Description
Screw,cap,socket Head
CAGE
66796

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 SC-2021-15 NSN 5305-01-184-3743

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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