BACF34L4BT2HS

BACF34L4BT2HS Cap Socket Head Screw

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Quality Commitment

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Datasheet. BACF34L4BT2HS specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

3a

Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

RIGHT-Hand

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.477in. and 0.637in. ⁓41/64"

Fastener Length
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.

0.767in. and 0.787in. ⁓51/64"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

flat countersunk

Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

0.360in. and 0.404in.

Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

hexagon

Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

0.250in. ⁓1/4"

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

0.1562in. and 0.1587in. ⁓11/64"

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

28

Minimum Tensile Strength
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.

160000 pounds per square inch

Countersink Angle
The included angle of the countersink.

99.0 degrees and 101.0 degrees

Surface Finish
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.

32.0 microinches grip

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

three slots 0.040 in. wide by 0.029 in. deep along the longitudinal axis and 120 degrees apart, thread to be double lead

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 8740 or steel comp 4140

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

MIL-S-6049 mil spec 1st material response or MIL-S-5626 mil spec 2nd material response

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

tin

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

MIL-T-10727 TY1 mil spec single treatment response

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unf

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unf

What material is the cap socket head screw made of ?

Steel comp 8740 or steel comp 4140

What is the thread quantity per inch?

28

What is the head style?

Flat countersunk

What is the thread length?

0.477 inches minimum and 0.637 inches maximum

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for BACF34L4BT2HS?

5305-01-137-7042

How is this classified for shipping?

Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of BACF34L4BT2HS?

FSC 5305 ⁓ Screws

NSN 5305-01-137-7042 SCREW,CAP,SOCKET HEAD

unf thread series tin surface treated three slots 0.040 in. wide by 0.029 in. deep along the longitudinal axis 28 thread quantity per inch flat countersunk head style 0.477" thread length right-hand 3a thread class

NIIN
011377042
NIIN Date
09/01/82
Schedule B
7318152000 
Name Code
16282
FIIG
A003B0
Item Weight
0.100lbs
Item Dimensions
--
QUP
Historical Price
$134.15 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. CA21150-4-2HS Cage 29372

Major End Users Countries and entities

  • - Department of The Air Force 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
Rating variable 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal hardware 
NMFC (national motor freight code)
093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3) 
UFC (universal freight code)
48950 

Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

BACF34L4BT2HS / Screw,cap,socket headWhat is the formal definition of this item?

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.