Model: 20313 BLK.OXIDE

Machine Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.400 inches and 1.500 inches

Fastener Length

1.500 inches

Head Style

Flat countersunk

Head Diameter

Between 0.452 inches and 0.507 inches

Internal Drive Style

Cross recess type 1

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

57000 pounds per square inch

Countersink Angle

Between 80.0 degrees and 82.0 degrees

Screw Material

Copper alloy

Screw Material Specification

Astm b16 assn standard single material response or astm b36 assn standard single material response or astm b121 assn standard single material response or astm b124 assn standard single material response

Screw Surface Treatment

Oxide

Screw Surface Treatment Specification

Mil-f-495 military standard single treatment response

Thread Series Designator

Unc

NSN

5305-00-206-3694

Part Number

20313 BLK.OXIDE

Description

Screw,machine

CAGE

73734

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 20313 BLK.OXIDE NSN 5305-00-206-3694

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:

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