Model: C9537-4-6

Socket Head Cap Screw

Special Features:

Furnished with one spring, thread to be double lead.

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.567 inches and 0.706 inches

Fastener Length

1.237 inches

Head Style

Oval countersunk

Head Diameter

Between 0.430 inches and 0.440 inches

Internal Drive Style

Hexagon

Thread Diameter

0.250 inches

Width Across Flats

Between 0.141 inches and 0.143 inches

Thready Qty Per Inch (tpi)

Countersink Angle

100.0 degrees

Material

Steel comp 4140 or steel comp 8740

Material Specification

Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 type 2 class 2 federal specification single treatment response

Thread Series Designator

Unf

NSN

5305-01-149-1933

Part Number

C9537-4-6

Description

Screw,cap,socket Head

CAGE

81755

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 C9537-4-6 NSN 5305-01-149-1933

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:

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