HT4020-7-12Y

HT4020712Y Shoulder Screw

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Datasheet. HT4020-7-12Y 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.

0.656in. ⁓21/32"

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.

1.390in. and 1.437in. ⁓1-7/16"

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

flat countersunk undercut

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

0.810in. and 0.889in.

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

0.118in. and 0.120in. ⁓1/8"

Shoulder Diameter
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.

0.467in. first shoulder and 0.468in. first shoulder

Shoulder Length
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.

0.630in. first shoulder and 0.632in. first shoulder

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.

0.438in. ⁓29/64"

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

20

Countersink Angle
The included angle of the countersink.

99.0 degrees and 101.0 degrees

Shoulder Shape
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.

round first shoulder

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

steel comp XM-13

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.

AMS5629 assn std single material 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 shoulder screw made of ?

Steel comp xm-13

What is the thread quantity per inch?

20

What is the head style?

Flat countersunk undercut

What is the thread length?

0.656 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for HT4020-7-12Y?

5305-01-267-6917

How is this classified for shipping?

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

What's the federal classification of HT4020-7-12Y?

FSC 5305 ⁓ Screws

NSN 5305-01-267-6917 SCREW,SHOULDER

unjf thread series 20 thread quantity per inch flat countersunk undercut head style 0.656" thread length right-hand 3a thread class

NIIN
012676917
NIIN Date
11/17/87
Schedule B
7318152000 
Name Code
22846
FIIG
A003B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

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

Major End Users Countries and entities

  • - Australia 
  • - Canada 

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Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

HT4020-7-12Y / Screw,shoulderWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. it has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. the head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. no. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. a locking feature may be incorporated in the design of the head or threads. for items which are both shouldered and have an externally relieved body, use screw, externally relieved body. for items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. excludes bolt, internal wrenching and screw, cap, socket head.