Model: LSTW7900-10-B8

Panel Screw Assembly

Special Features:

Stud material: 8740 alloy steel per ams 6322, heat treat to 160 ksi min. Ultimate tensile strength

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.250 inches

Fastener Length

Between 1.008 inches and 1.018 inches

Head Style

Flat countersunk undercut

Head Diameter

0.375 inches

Head Height

0.052 inches

Internal Drive Style

Tri-wing recess

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

1300 pounds per square inch

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Part Name Assigned By Controlling Agency

Captive screw

Color

Yellow

Material

Steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type ii, class 3 assn standard single treatment response

Thread Series Designator

Unjf

NSN

5305-01-592-6251

Part Number

LSTW7900-10-B8

Description

Screw Assembly,panel

CAGE

0HDW7

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 LSTW7900-10-B8 NSN 5305-01-592-6251

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:

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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