Model: VT10021-4-4

Close Tolerance Screw

Special Features:

Has 132 ksi shear

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.403 inches

Fastener Length

Between 0.638 inches and 0.668 inches

Head Style

Flat countersunk undercut

Head Diameter

Between 0.350 inches and 0.399 inches

Head Height

0.063 inches

Grip Diameter

Between 0.2485 inches and 0.2495 inches

Internal Drive Style

Offset cruciform (torque set)

End Application

F16 aircombfit

Thread Diameter

0.250 inches

Grip Length

0.250 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

3960 pounds per square inch

Hardness Rating

46.0 rockwell c and 50.0 rockwell c

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Material

Steel comp h11

Material Specification

Ams6487 assn standard single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Nas672 national specification single treatment response

Thread Series Designator

Unjf

NSN

5305-01-465-6692

Part Number

VT10021-4-4

Description

Screw,close Tolerance

CAGE

06710

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 VT10021-4-4 NSN 5305-01-465-6692

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29294

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

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