Model: CS318642H6-19

Close Tolerance Screw

Special Features:

Bearing surface of head to be grooved to a 0.472 in. Min., 0.474 in. Max. Dia, 0.115 in. Min. 0.120 in. Max. From top of head

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.469 inches and 0.519 inches
Fastener Length
Between 1.667 inches and 1.697 inches
Head Style
Flat countersunk
Head Diameter
Between 0.645 inches and 0.672 inches
Grip Diameter
Between 0.3735 inches and 0.3745 inches
Internal Drive Style
Offset cruciform (torque set)
Thread Diameter
0.375 inches
Grip Length
Between 1.178 inches and 1.198 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
220000 pounds per square inch
Countersink Angle
Between 59.75 degrees and 60.25 degrees
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches threads
Material
Steel comp h11
Material Specification
Ams6485 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams 2416 assn standard single treatment response
Thread Series Designator
Unf
NSN
5305-00-130-7645
Part Number
CS318642H6-19
Description
Screw,close Tolerance
CAGE
93907

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part CS318642H6-19 NSN 5305-00-130-7645

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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

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

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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