Model: LK21090-0631

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.626 inches and 1.750 inches

Fastener Length

Between 1.688 inches and 1.750 inches

Head Style

Pan

Head Diameter

Between 0.256 inches and 0.270 inches

Head Height

Between 0.087 inches and 0.097 inches

Locking Feature

Patch threads or pellet threads or strip threads

Internal Drive Style

Cross recess type 1

Thread Diameter

0.138 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

60000 pounds per square inch

Material

Plastic locking feature

Material

Steel fastener

Material Specification

66 federal standard single material response fastener

Surface Treatment

Cadmium fastener and chromate fastener

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification single treatment response fastener

Thread Series Designator

Unc

Nondefinitive Specification/std Data

3 type and 9c style

NSN

5305-01-025-4799

Part Number

LK21090-0631

Description

Screw,cap,socket Head

CAGE

26304

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part LK21090-0631 NSN 5305-01-025-4799

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

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:

096640

UFC:

50600

LTL:

70.0

LCL:

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