Model: 18422

Machine Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.200 inches and 0.250 inches
Fastener Length
Between 0.219 inches and 0.250 inches
Head Style
Fillister
Head Diameter
Between 0.166 inches and 0.183 inches
Head Height
Between 0.072 inches and 0.079 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.112 inches
Thready Qty Per Inch (tpi)
40
Min. Tensile Strength (psi)
80000 pounds per square inch
Screw Material
Steel comp 430
Screw Material Specification
Qq-s-763, class 4 federal specification single material response or mil-s-7720, comp fm or g military specification single material response
Screw Surface Treatment
Passivate
Screw Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unc
Specification Data
81348-ff-s-92 government specification and 88044-an500/canceled/ government standard and 96906-ms35366/canceled/ government standard
Nondefinitive Specification/std Data
3 type and 4c style and 4-40 size
NSN
5305-00-080-0744
Part Number
18422
Description
Screw,machine
CAGE
73734

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part 18422 NSN 5305-00-080-0744

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
Concept No.:
App. Key:
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:
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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