SC1786RE4-8

SC1786RE48 Close Tolerance Screw

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Datasheet. SC1786RE4-8 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.

0.400in. and 0.450in. ⁓29/64"

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.

0.910in. and 0.940in. ⁓61/64"

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

oval countersunk

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

0.3948in.

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

0.2485in. and 0.2495in.

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

offset cruciform (torque set)

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"

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

0.490in. and 0.510in.

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

28

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

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

32.0 microinches threads

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.

internal drive ribbed

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

iron alloy 660

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 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 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.

QQ-P-35 fed 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.

unjf

Answers.

What class is the thread series?

Unjf

What material is the close tolerance screw made of ?

Iron alloy 660

What is the thread quantity per inch?

28

What is the grip length?

0.490 inches minimum and 0.510 inches maximum

What is the head style?

Oval countersunk

What is the thread length?

0.400 inches minimum and 0.450 inches maximum

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for SC1786RE4-8?

5305-01-188-7592

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 SC1786RE4-8?

FSC 5305 ⁓ Screws

NSN 5305-01-188-7592 SCREW,CLOSE TOLERANCE

unjf thread series passivate surface treated internal drive ribbed 28 thread quantity per inch 0.490" grip length oval countersunk head style 0.400" thread length right-hand 3a thread class

NIIN
011887592
NIIN Date
09/07/84
Schedule B
7318152000 
Name Code
29294
FIIG
A003B0
Item Weight
0.100lbs
Item Dimensions
--
QUP
 
Historical Price
$13.15 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. PBF1382-2408 Cage 27624
2. 123179E4R8 Cage 80539
3. E178-2408 Cage 17446
4. LE111-0038-2408 Cage 43999
5. LE111-0038-2408 Cage 06725
6. LE111-0038-2408 Cage 57928
7. E178-2408 Cage 97928
8. PBF1382-2408 Cage 27624
9. 123179E4R8 Cage 80539
10. E178-2408 Cage 17446
11. LE111-0038-2408 Cage 43999
12. LE111-0038-2408 Cage 06725
13. LE111-0038-2408 Cage 57928
14. E178-2408 Cage 97928
15. PBF1382-2408 Cage 27624
16. 123179E4R8 Cage 80539
17. E178-2408 Cage 17446
18. LE111-0038-2408 Cage 43999
19. LE111-0038-2408 Cage 06725
20. LE111-0038-2408 Cage 57928
21. E178-2408 Cage 97928
22. PBF1382-2408 Cage 27624
23. 123179E4R8 Cage 80539
24. E178-2408 Cage 17446
25. LE111-0038-2408 Cage 43999
26. LE111-0038-2408 Cage 06725
27. LE111-0038-2408 Cage 57928
28. E178-2408 Cage 97928

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

SC1786RE4-8 / 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.