Model: SMB174344

Thumbscrew

Special Features:

Thd relieved groove 0.062 in. W

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.391 inches and 0.422 inches

Fastener Length

Between 0.688 inches and 0.719 inches

Head Style

Knurled no. 1

Head Diameter

Between 0.734 inches and 0.766 inches

Head Height

Between 0.234 inches and 0.266 inches

Shoulder Diameter

0.422 inches first shoulder and 0.453 inches first shoulder

Shoulder Length

0.109 inches first shoulder and 0.141 inches first shoulder

Point Style

Cone

Thread Diameter

0.216 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Round first shoulder

Material

Steel comp 303

Material Specification

Qq-s-764 federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-f-14072, finish e300 military specification single treatment response

Thread Series Designator

Unc

NSN

5305-00-774-9453

Part Number

SMB174344

Description

Thumbscrew

CAGE

80063

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Part SMB174344 NSN 5305-00-774-9453

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06673

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:

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