Model: NASM21318-3

Drive Screw

Special Features:

size is 0.058 or no. 00, 6 thrds in circumference, recommended hole size = 0.05267, drill size = 55

Properties:

Fastener Length

0.250 inches

Head Style

Round

Head Diameter

Between 0.090 inches and 0.099 inches

Head Height

Between 0.026 inches and 0.034 inches

Pilot Diameter

Between 0.046 inches and 0.049 inches

Pilot Length

0.047 inches

Nonmachine Thread Style

Drive screw (type u)

Nonmachine Thread Diameter

0.060 inches

Part Name Assigned By Controlling Agency

Screw, drive, round head, type u, steel, carbon, cadmium plated

Material

Steel

Material Specification

Nas-21318 assn standard all material responses

Surface Treatment

Cadmium

NSN

5305-01-585-3186

Part Number

NASM21318-3

Description

Screw,drive

CAGE

80205

A hardened cylindrical fastener with multiple spiral flutes on its shank. It also has an end smaller in diameter than the outside diameter of the spiral flutes, which acts as a pilot when driven into a drilled hole.

Part NASM21318-3 NSN 5305-01-585-3186

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15896

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:

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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