HT4027-3D6

HT40273D6 Close Tolerance Screw

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Datasheet. HT4027-3D6 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.

0.406in. ⁓13/32"

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.

0.579in. and 0.609in. ⁓39/64"

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

fillister countersunk

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

0.297in. and 0.302in.

Head Height
A measurement from the bottom to the top of the head,in distinction from depth.

0.013in. ⁓1/64"

Grip Diameter
The length of a straight line which passes through the center of the grip,and terminates at the circumference.

0.189 mils and 0.190 centimeters

Point Length
A measurement of the longest dimension of the point,in distinction from width.

0.039in.

Shank Unthreaded Hole Diameter
The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.

0.070 mils first hole and 0.075 centimeters first hole

Point Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.

flat

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

HIGH-Torque

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

0.190in. (UTS #10)

Grip Length
A measurement of the longest dimension of the grip,in distinction from width.

0.188 in.

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

32

Countersink Angle
The included angle of the countersink.

99.0 degrees and 101.0 degrees

Distance From Head Largest Bearing Surface To Shank Hole Center
The distance from the shank hole centerline to the largest bearing surface of the head.

0.473in. first hole and 0.483in. first hole

Point Chamfer Angle

45.0 of standard range single treatment response

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

SCREW-Close tolerance, 100 deg countersunk, reduced head, HI-Torque, NON-Magnetic cres (135 ksi fsu)

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.

head has a 1.40 deg radius dome

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

nickel alloy 718

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.

ams 5662 assn std single 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.

passivate

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.

ams 2700 assn std 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.

unjf

Answers.

What class is the thread series?

Unjf

What material is the close tolerance screw made of ?

Nickel alloy 718

What is the thread quantity per inch?

32

What is the grip length?

0.188 inches

What is the head style?

Fillister countersunk

What is the thread length?

0.406 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for HT4027-3D6?

5305-01-591-0128

How is this classified for shipping?

Schedule B number: 7508900000
nmfc 096640
Other articles of nickel (excluding cloth, grill & netting of nickel wire)

What's the federal classification of HT4027-3D6?

FSC 5305 ⁓ Screws

NSN 5305-01-591-0128 SCREW,CLOSE TOLERANCE

unjf thread series passivate surface treated head has a 1.40 deg radius dome screw-close tolerance, 100 deg countersunk, reduced head, hi-torque, non-magnetic cres (135 ksi fsu) 32 thread quantity per inch 0.188 " grip length fillister countersunk head style 0.406" thread length right-hand 3a thread class

NIIN
015910128
NIIN Date
01/06/11
Schedule B
7508900000 
Name Code
29294
FIIG
A003B0
QUP
 
Historical Price
$178.30 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. ST3M557-3D6 Cage 76301
2. ST3M447-3D6 Cage 06710
3. ST3M557-3D6 Cage 0K6Z0
4. ST3M557-3D6 Cage 0ZC92
5. ST3M557-3D6 Cage 1VSL7
6. ST3M557-3D6 Cage 4WL75
7. 11923-3D6 Cage 59563
8. WC4027-3D6 Cage 60516
9. ST3M557-3D6 Cage U6683

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)
70.0 
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)
096640 SCREWS, IRON OR STEEL 
UFC (universal freight code)
50600 

Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

HT4027-3D6 / Screw,close toleranceWhat is the formal definition of this item?

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.