Model: FT1255HS-4-3-9

Panel Screw Assembly

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.250 inches

Fastener Length

Between 0.542 inches and 0.582 inches

Head Style

Flat chamfer

Head Diameter

Between 0.160 inches and 0.200 inches

Head Height

0.169 inches

Internal Drive Style

Hexagon

Material Accommodated Thickness

Between 0.106 inches and 0.116 inches

Thread Diameter

0.112 inches

Width Across Flats

0.094 inches

Thready Qty Per Inch (tpi)

Material

Aluminum alloy 7075 stand-offsteel comp 303 plus x fastener or steel comp 303 fastener or steel comp 303se fastener

Material Specification

Qq-a-225/9 federal specification single material response stand-off

Surface Treatment

Anodize stand-offcadmium fastener and chromate fastener

Surface Treatment Specification

Mil-a-8625 ty1 cl2 military specification single treatment response stand-offqq-p-416 ty2 cl2 federal specification single treatment response fastener

Thread Series Designator

Unc

NSN

5305-01-352-2191

Part Number

FT1255HS-4-3-9

Description

Screw Assembly,panel

CAGE

58794

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Part FT1255HS-4-3-9 NSN 5305-01-352-2191

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

33044

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:

0.2000lbs

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:

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