Model: MIL-F-18240 .25-20UNC-2A-.625LG

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.525 inches and 0.625 inches

Fastener Length

0.625 inches

Head Style

Pan no. 2

Head Diameter

Between 0.944 inches and 1.000 inches

Head Height

Between 0.411 inches and 0.438 inches

Locking Feature

Patch threads or strip threads

Internal Drive Style

Slot

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

80000 pounds per square inch

Material

Plastic polyamide locking feature

Material

Steel comp 304 fastener

Material Specification

Qq-s-763 federal specification single material response fastener

Surface Treatment

Passivate fastener

Surface Treatment Specification

Qq-p-35 federal specification single treatment response fastener

Thread Series Designator

Unc

Nondefinitive Specification/std Data

1 type and 1s style

NSN

5305-01-277-3187

Part Number

MIL-F-18240 .25-20UNC-2A-.625LG

Description

Screw,cap,socket Head

CAGE

81349

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part MIL-F-18240 .25-20UNC-2A-.625LG NSN 5305-01-277-3187

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

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:

096640

UFC:

50600

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Instruments/Radio

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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