Model: 77191

Thumbscrew

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.840 inches

Fastener Length

1.560 inches

Head Style

Knurled no. 2

Head Diameter

0.620 inches

Head Height

0.380 inches

Shoulder Diameter

0.500 inches first shoulder

Shoulder Length

0.030 inches first shoulder and 0.040 inches first shoulder

Point Length

0.720 inches

Point Diameter

Between 0.187 inches and 0.195 inches

Point Style

Ball

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Round first shoulder

Material

Copper alloy

Material Specification

Astm b16 half hard assn standard single material response

Surface Treatment

Paint

Surface Treatment Specification

-1l-t-704, type a military specification single treatment response

Thread Series Designator

Unc

NSN

5305-00-590-7817

Part Number

77191

Description

Thumbscrew

CAGE

93084

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 77191 NSN 5305-00-590-7817

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

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:

096630

UFC:

50590

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415338550
SITC: 69433
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Other copper screws (not for wood) bolts and nuts