Model: 4348

Machine Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.312 inches

Fastener Length

0.312 inches

Head Style

Pan no. 2

Head Diameter

Between 0.306 inches and 0.322 inches

Head Height

Between 0.085 inches and 0.096 inches

Internal Drive Style

Slot

Thread Diameter

0.164 inches

Thready Qty Per Inch (tpi)

Screw Material

Steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1022 or steel comp 1524 or steel comp 1025 or steel comp 1527 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1038 or steel comp 1040 or steel comp 1541 or steel comp 1108 or steel comp 1109 or steel comp 1110

Screw Material Specification

Qq-s-633 except bessemer comp. Federal specification single material response or qq-w-409 grade 2, 3 or 4 federal specification single material response

Screw Surface Treatment

Cadmium and chromate or zinc and chromate

Thread Series Designator

Unc

Nondefinitive Specification/std Data

I type and 9s style

NSN

5305-00-043-6692

Part Number

4348

Description

Screw,machine

CAGE

92878

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part 4348 NSN 5305-00-043-6692

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06657

FIIG:

A500D0

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

50.0

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