Model: LL51957-4

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.245 inches and 0.312 inches

Fastener Length

Between 0.281 inches and 0.312 inches

Head Style

Pan

Head Diameter

Between 0.155 inches and 0.167 inches

Head Height

Between 0.053 inches and 0.062 inches

Locking Feature

Strip threads

Internal Drive Style

Cross recess type 1

Thread Diameter

0.086 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

80000 pounds per square inch

Material

Stainless steel or steel

Material Specification

Qq-s-763, 300 series federal specification 1st material response or 66, 300 series federal standard 1st material response or comp 16-18 or 18-8 assn standard 2nd material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Thread Series Designator

Unc

NSN

5305-00-436-7186

Part Number

LL51957-4

Description

Screw,cap,socket Head

CAGE

03038

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 LL51957-4 NSN 5305-00-436-7186

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

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