Model: 2755-4-4D

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
Hole Diameter
0.037 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.112 inches
Hole Quantity
1
Thready Qty Per Inch (tpi)
40
Min. Tensile Strength (psi)
60000 pounds per square inch
Screw Material
Steel or steel comp 1010
Screw Material Specification
Qq-s-630 federal specification 2nd material response or qq-s-631 federal specification 2nd material response or qq-s-634 federal specification 2nd material response
Screw Surface Treatment
Cadmium
Screw Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification single treatment response
Head Hole Configuration Style
Round
Thread Series Designator
Unc
NSN
5305-00-685-2290
Part Number
2755-4-4D
Description
Screw,machine
CAGE

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 2755-4-4D NSN 5305-00-685-2290

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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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