Model: STD3053-40

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.669 inches and 0.760 inches
Fastener Length
Between 0.740 inches and 0.760 inches
Head Style
Flat chamfer
Head Diameter
Between 0.428 inches and 0.448 inches
Head Height
Between 0.250 inches and 0.270 inches
Hole Diameter
0.070 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.219 inches and 0.221 inches
Hole Quantity
6
Hole Type
Drilled
Thready Qty Per Inch (tpi)
28
Hardness Rating
32.0 rockwell c and 36.0 rockwell c
Hole Configuration Style
Round internal hexagon
Material
Steel comp 8740
Material Specification
Ams 6322 assn standard single material response
Surface Treatment
Oxide
Surface Treatment Specification
Ams 2485 assn standard single treatment response
Thread Series Designator
Unf
NSN
5305-00-820-9475
Part Number
STD3053-40
Description
Screw,cap,socket Head
CAGE
99193

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 STD3053-40 NSN 5305-00-820-9475

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:
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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