Model: GS551B3S6

Socket Head Cap Screw

Description:

3a thread class, right-hand , 0.250 inches thread length, 0.390 inches fastener length, flat countersunk head style, 0.327 inches head diameter.

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.250 inches and 0.328 inches

Fastener Length

Between 0.390 inches and 0.437 inches

Head Style

Flat countersunk

Head Diameter

Between 0.327 inches and 0.385 inches

Internal Drive Style

Cross recess type 1

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

125000 pounds per square inch

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Material

Steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

Thread Series Designator

Unf

NSN

5305-00-001-1837

Part Number

GS551B3S6

Description

Screw,cap,socket Head

CAGE

26512

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 GS551B3S6 NSN 5305-00-001-1837

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:

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

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