Model: HT409A-4-14

Shoulder Screw

Special Features:

Furnished with o-ring

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.443 inches and 0.510 inches

Fastener Length

Between 1.328 inches and 1.375 inches

Head Style

Flat countersunk undercut

Head Diameter

Between 0.501 inches and 0.506 inches

Head Height

Between 0.065 inches and 0.067 inches

Shoulder Diameter

0.2641 inches first shoulder and 0.2651 inches first shoulder

Shoulder Length

0.6748 inches first shoulder and 0.6928 inches first shoulder

Internal Drive Style

High-torque

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Countersink Angle

100.0 degrees

Shoulder Shape

Round first shoulder

Material

Steel comp 4140 or steel comp 4340 or steel comp 8740 or steel comp 8735 or steel comp 4130

Material Specification

Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6758 military specification 5th material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

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

Thread Series Designator

Unf

NSN

5305-01-009-6701

Part Number

HT409A-4-14

Description

Screw,shoulder

CAGE

C4293

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part HT409A-4-14 NSN 5305-01-009-6701

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22846

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:

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