Model: BL-8631

Machine Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.355 inches and 0.395 inches

Fastener Length

Between 0.865 inches and 0.885 inches

Head Style

Flat countersunk

Head Diameter

Between 0.371 inches and 0.385 inches

Internal Drive Style

Clutch type i

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Countersink Angle

Between 99.0 degrees and 100.0 degrees

Screw Material

Steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 431

Screw Material Specification

Mil-s-6050 military specification 1st material response or mil-s-6098 military specification 2nd material response or mil-s-6758 military specification 3rd material response or mil-s-18732 military specification 4th material response

Screw Surface Treatment

Cadmium

Screw Surface Treatment Specification

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

Thread Series Designator

Unf

NSN

5305-00-933-1359

Part Number

BL-8631

Description

Screw,machine

CAGE

08484

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part BL-8631 NSN 5305-00-933-1359

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06657

FIIG:

A500D0

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:

133300

UFC:

63220

LTL:

RATING VARIABLE

LCL:

WCC:

72E

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