Model: 1645

Setscrew

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.400 inches and 0.630 inches

Fastener Length

Between 0.620 inches and 0.630 inches

Head Style

Fillister

Head Diameter

0.400 inches

Head Height

0.150 inches

Hole Diameter

0.064 inches

Point Length

0.220 inches

Point Diameter

Between 0.170 inches and 0.176 inches

Point Style

Flat

Internal Drive Style

Slot

Thread Diameter

0.250 inches

Hole Quantity

Hole Type

Drilled

Thready Qty Per Inch (tpi)

Hardness Rating

26.0 rockwell c and 32.0 rockwell c

Hole Configuration Style

Round

Point Chamfer Angle

45.0 degrees

Material

Steel

Surface Treatment

Cadmium

Thread Series Designator

Unc

NSN

5305-00-474-3751

Part Number

1645

Description

Setscrew

CAGE

11599

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part 1645 NSN 5305-00-474-3751

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06672

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

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