Model: 38-657-9

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.461 inches

Fastener Length

0.562 inches

Head Style

Flat chamfer

Head Diameter

Between 0.306 inches and 0.312 inches

Head Height

Between 0.185 inches and 0.190 inches

Internal Drive Style

Hexagon

Thread Diameter

0.190 inches

Width Across Flats

Between 0.156 inches and 0.158 inches

Thready Qty Per Inch (tpi)

Hardness Rating

36.0 rockwell c and 40.0 rockwell c

Material

Steel comp 416

Material Specification

Qq-s-763 federal specification single material response

Surface Treatment

Passivate

Thread Series Designator

Unf

NSN

5305-00-582-9440

Part Number

38-657-9

Description

Screw,cap,socket Head

CAGE

56232

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 38-657-9 NSN 5305-00-582-9440

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:

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