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  • [M] Diameter (Screw Thread) Nominal
  • [L] Length(mm)
  • Material
    • Stainless Steel
  • Surface Treatment
  • [P] Pitch(mm)
  • Sales Unit
  • Application
  • CAD
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Extra Low Profile Head Hex Socket Head Cap Screw -Single Item / Sales by Carton / Loosening Prevention Treated -Sales by Package-【1 a 500 unidades】 (PACK-CBSTS3-4-YBM)

Número da peça:

PACK-CBSTS3-4-YBM
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Desenho de contorno e tabela de especificações

Back to the Category Flat Head Screws/Low Head Screws

Technical Drawing - Flat Head Screws
 

No Thread Locking Compound (Available in Single item / Box (150 pcs. or more))

Hex Socket Extra Low Head Cap Screws: Related Image
 

With Thread Locking Compound, Package Sale (10 pcs.), EN 1.4567 Equiv. only

PACK-CBSTS *Tensile Strength 400 N/m㎡
(a), (b) Dimension
ML(a)(b)
M34 to 10Fully Threaded Section0
1232
M45 to 10Fully Threaded Section0
12 to 1642
M56 to 10Fully Threaded Section0
12 to 2052
M68 to 10Fully Threaded Section0
12 to 2562
* For other dimensions, refer to the specification table.
 

Available dimensions and tolerances can be found under the tab More Information.

 

Basic Properties (e.g., material, hardness, coating, tolerance) - Flat Head Screws

No Thread Locking Compound (Available in Single item / Box (150 pcs. or more))

Type
[M] Material[H] Hardness[S] Surface TreatmentStrength Class *Head Strength Class
CBSSEN 1.7220 Equiv.32 to 39HRCBlack Oxide (Black)10.95.8 (M10 4.8)
CBSATrivalent Chromate (Silver)
CBSRLTBC Plating
CBSMBright Chrome Plating
CBSTSEN 1.4567 Equiv.(Note 1)
BOX−CBSTS
(*1) Tensile Strength of CBSTS is 400 N/mm2 
ThreadTightening Torque (Reference Value)
N⋅m
CBSS
CBSA
CBSRCBSTS
BOX−CBSTS
PACK-CBSTS
M20.12-0.25
M2.50.24-0.42
M30.60.90.8
M41.22.21.6
M52.13.33.0
M63.05.95.0
M86.010.38.6
M1010.8-15.4
Decide the actual tightening torque in consideration with the usage environment such as friction with the mating material and accuracy of the tightening tool
 

With Thread Locking Compound, Package Sale (10 pcs.), EN 1.4567 Equiv. only

[ ! ] Thread Locker
·Single item with thread locker applied is not available.
· (a) It is applied to the entire circumference.
·Cannot be used repeatedly.
The locking agent is encased in a micro capsule, once the screw is tightened, it breaks and the agent will come out.
Although it is possible that not every capsule has been cracked, the thread locking effect may be less after the second time.
Please be aware that contact with oil will reduce performance.
TYPETreatment Code[M] MaterialTreatment
PACK-CBSTSYBMEN 1.4567 Equiv.Thread Locking Compound
(Epoxy Resin Adhesive)

Further specifications can be found under the tab More Information.

 

Composition of a Product Code - Flat Head Screws
 
Part Number
CBSA6−12
 
Part NumberTreatment Code
PACK− CBSTS 3− 5YBM

 

General Information - Flat Head Screws

 

Flathead Screw Selection Details

- Drive: hex (external hex), hexagon socket, hex socket (Torx)

- Strength classes: 8.8, 10.9, A2-50, A4-80

- Threads: M2, M2.5, M2.6, M3, M4, M5, M6, M8, M10, M12

- Thread lengths: 3 mm – 50 mm

- Surface coating: burnished, nickel-plated, chrome-plated, LTBC coating

- Materials: stainless steel, steel

 

Description/Basics

The screwed connection is one of the most commonly used methods among the soluble compounds. Due to their flat head, flathead screws have various advantages over conventional screws.

Screws with a flat head are often utilised in places that need to form a flat level as much as possible.
Due to their head geometry, flathead screws allow counterbores to be made less deep or completely omitted. This allows covers to be made thinner walls and thus save weight. These advantages also result in cost savings through material savings and the elimination or shortening of production steps. The MISUMI flat-head screws are thus ideal for mounting sheet metal, thin panels, housing covers and other covers.
As opposed to the head form of commercially available screws, the flathead screw reduces the risk of injury at accessible locations, such as housing covers, mounting flaps, etc. This also eliminates the frequently required plastic caps on large screw heads.

Contrary to the standard flathead screws (DIN 921, DIN 922 and DIN 923), MISUMI has flathead screws with hexagon socket, hexagon socket (Torx) and external hexagon. These drive types reduce slipping during assembly compared to typical cross or slotted drives.

MISUMI offers flathead screws in various strength classes.
However, due to the delicate head of flathead screws, the strength on the head can be lower than that on the thread, since there is less material available. The respective strength class is therefore assigned to the individual flathead screws (see Basic Properties).

 

Areas of Application

Flathead screws are intended for fastening of joining parts. Often, the flathead screws are used for housing covers or in applications requiring low weight.
Thanks to the multi-selectable surface treatments, flathead screws are particularly resistant to environmental influences. This allows flathead screws to be used in almost all industry sectors of plant engineering and mechanical engineering.
The benefits of using flathead screws are versatile. The main advantages of flathead screws are their low weight and space savings.
To utilise a flathead screw with vent function, e.g., for pressure equalization, MISUMI also offers hollow screws with a flat head.

 

Allen screws/extra flat head: related image display

(1) Through-hole for exhaust air

 

Materials

 

Strength classes

The strength class gives the tensile strength [R m ] and yield strength [R e ], or expansion limit [R p-0.2] of the screw.
Screws that are subject to a strength class are often marked by the strength class on the screw head. For some screws, the reference to the strength class is missing. In such cases, please refer to the Screw Data Sheet (see Basic Properties).
The screw strength class is an indication of the tensile strength and the expansion limit of a screw. The higher the specification of the strength class, the higher the tensile strength and expansion limit. In principle, a distinction is made between steel and stainless steel (stainless steel).
Stainless steel screws are marked with the letters A, C and F (e.g., A2-50). Steel screws are marked with two numbers, separated by a dot (e.g., 8.8).
The tensile strength and elongation limit can be determined based on this information. Which of the two values and safety number are used for the further calculation of the screws depends on the applied load case.

 

Allen screws/extra flat head: related image display

Example of a strength marking

 

Tensile strength steel

Example: 8.8

R m = 8 x 100 N/mm 2 = 800 N/mm 2

The expansion limit of the screw material is the resistance value that can be applied to the material without permanent deformation. Thus, the screw can return to its original length after this stress (elastic range).
If the elastic range is exceeded, there is a permanent (plastic) deformation, which can end in a tear/fracture of the material upon further stress.
To determine the value, both values of the strength specification are multiplied with each other and additionally by a factor of 10.

Example 8.8

R p-0.2 = 8 x 8 x 10 N/mm 2 = 640N /mm 2

 

Tensile strength stainless steel

For stainless steel screws, the strength specification begins with the specification of the material group used.
The most common stainless steel screw is the A2 stainless steel screw, which is manufactured from (colloquially speaking) V2A material. In this example, the A2 screw is made of austenitic stainless steel.
Ferritic stainless steel screws are often marked with a [F] at the beginning and martensitic stainless steel types with a [C].
Unlike the steel screws, the second value of the strength specification is multiplied by a factor of 10 for the stainless steel screws in order to determine the tensile strength of the screw material. The expansion limit [R p-0.2] must be determined in tabular form based on the expansion limit of the raw material or the manufacturer.

Example A2-50

R m = 50 x 10 N/mm 2 = 500 N/mm 2

Screws without specification of this strength classification have manufacturer-bound values that must be taken from the respective data sheets or manufacturer information. This often occurs with screws with special shape and treatment.

 

Coatings

MISUMI’s flathead screws are available in burnished, chrome-plated, or nickel-plated to best protect them from corrosion.
As an alternative to one of these surface treatments, flathead screws can also be coated with LTBC. The LTBC coating (Low Temperature Black Chrome Platinum) is a surface coating that protects against corrosion and has low reflection. The coating consists of a 5 μm thick chrome ceramic layer with fluoropolymer infusion and forms a black film. In addition, the LTBC coating is resistant to cracking and bending and it is thus resistant to peeling due to extreme or repeated bending. This makes LTBC-coated flathead screws particularly suitable for areas where corrosion or light reflections are undesirable.

 

Dimensions

Compared to an M5 standard cylinder head screw with 5 mm head height, with a flathead screw it is possible to save up to 4 mm of head height.

 

Allen screws/extra flat head: related image display

(1) Standard cylinder head screws, (2) Flat head, (3) Safety screws, (4) Very flat head, (5) Ultra flat head

 

ProductsHexagon socket screwsflat headSafety screwsvery flat headultra flat head
Allen socket screwsAllen socket screwsAllen socket screwsAllen socket screwsAllen socket screws
P. 172, 174, 175P. 194P. 185P. 195P. 196
Head height (in mm)
M221.31.31.1 (min.*)0.5
2.52.51.61.51.3 (min.*)0.6
3321.651.50.8
442.82.21.50.9
553.52.751.51
6643.31.51.2
8854.41.5-
101065.51.5-
12127---

Bolt Head Height Comparison Chart
*Head height varies by material.

 

Instructions for Use / Installation Information - Flat Head Screws

 

Tightening torques/torques

 

Productsflat headvery flat headultra flat head
SteelSteel, stainless steelStainless steelSteelStainless steelSteelSteel
Strength class10.98.8, A4-80A2-505.8 (M10, 4.8)---
Tensile strength (N/mm 2)1040800500500 (M10, 400)400350 (M2, 200)350 (M2, 200)
M2--0.250.250.250.160.178
2.5--0.420.820.420.35-
31.10.90.80.90.80.60.63
44.01.81.61.81.61.11.5
56.13.63.23.23.02.23.0
610.57.26.55.25.05.05.2
818.410.89.79.08.6--
10-31.528.416.215.4--
12-45.040.5----

Note: The above values are for comparison purposes only (reference values).

Further specifications can be found under the tab More Information.

 

Installation Information

 

Bore hole dimensions screw dimensions

Dimensions of the screw and counterbores

 

Thread
(d)
flat headvery flat head
(stainless steel screw)
ultra flat head
Hexagon socket
ultra flat head
Torx
d'dkD'kH'd'dkD'kH'd'dkD'kH'd'dkD'kH'
M2 2.53.851.31.54451.1
(1.5)
1.3
(1.7)
2.5450.50.72.5450.50.7
M2.534.55.51.61.83561.3
(1.5)
1.5
(1.7)
3560.60.8-----
M33.55.56.522.33.5671.3
(1.5)
1.6
(1.8)
3.5670.81.13.5780.81.1
M44.5782.83.24.5891.51.93.4891.11.34.5890.91.3
M55.58.59.53.53.95.59101.51.95.59101.41.45.591011.4
M66.5101144.56.510111.526.510111.71.76.512131.21.7
M89131455.6913141.52.1----------
M10111617.566.81116
(15)
17.5
(16.5)
1.52.3----------
M1214182078---------------

Further specifications can be found under the tab More Information.

 

Supplementary Article

 

Washers

Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

Nuts

Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

 

Inserts

Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

 

Mounting Plates and Brackets

Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

 

Anaerobic Adhesive

Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

 

Industrial Applications

 

3D printer industry
Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf
Automotive industry
Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf
Pharmaceutical industry
Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf
Packaging industry
Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

  

Lista de números de peça

Número de itens
Número da peça
PACK-CBSTS3-4-YBM

[M] Diameter (Screw Thread) Nominal

[L] Length

(mm)

Material

Surface Treatment

[P] Pitch

(mm)

Additional Shape

Strength Class (Steel)

Sales Unit

Application

RoHS?Quantidade mínima de encomenda
3
4
[Stainless Steel] EN 1.4567 Equiv.
Threadlocker Adhesive Applied
0.5
Threadlocker Adhesive Applied
-
Box, Pkg.
Standard
-
1 conjuntos

10 unidades

Preço unitário (excluindo IVA)(Preço unitário incluindo IVA)
Data de envio standard
27.07 €
( 32.21 € )
5 dias úteis

Informações detalhadas

Informações básicas

Cuidado

  • Please check the content on our website as the PDF does not contain the most up-to-date information.

Contorno e especificações

Back to the Category Flat Head Screws/Low Head Screws

Technical Drawing - Flat Head Screws


Hex Socket Extra Low Head Cap Screws: Related Image

 
 
Specification Tables - Flat Head Screws


Overview of screws as PDF

 
TypeM × PABt
max.
(e)
max.
rT
CBSS2 × 0.441.31.21.20.1 or More1.1
2.5 × 0.4551.31.51.51.3
3 × 0.561.521.6
4 × 0.7822.51.60.2 or More1.5
5 × 0.89332
6 × 1.010342.50.25 or More
8 × 1.25134530.4 or more
10 × 1.516563.5
CBSA2 × 0.441.31.21.20.1 or More1.1
2.5 × 0.4551.31.51.51.3
3 × 0.561.521.6
4 × 0.7822.51.60.2 or More1.5
5 × 0.89332
6 × 1.010342.50.25 or More
8 × 1.25134530.4 or more
10 × 1.516563.5
CBSR3 × 0.561.521.60.1 or More1.3
4 × 0.7822.51.60.2 or More1.5
5 × 0.89332
6 × 1.010342.50.25 or More
8 × 1.25134530.4 or more
TypeM × PABt
max.
(e)
max.
rT
CBSTS2 × 0.441.31.21.20.2 or More1.1
2.5 × 0.4551.31.51.51.3
3 × 0.561.521.61.5
4 × 0.7822.51.6
5 × 0.89332
6 × 1.010342.5
8 × 1.2513453
10 × 1.515563.5
BOX-CBSTS2 × 0.441.31.21.20.2 or More1.5
2.5 × 0.4551.31.51.5
3 × 0.561.521.61.3
4 × 0.7822.51.61.5
5 × 0.89332
6 × 1.010342.5
8 × 1.2513453
10 × 1.515563.5
PACK-CBSTS2 × 0.441.31.21.20.2 or More1.5
2.5 × 0.4551.31.51.5
3 × 0.561.521.6
4 × 0.7822.51.6
5 × 0.89332
6 × 1.010342.5
8 × 1.2513453
10 × 1.515563.5
ThreadA Dimension Tolerance
CBSS
CBSA
CBSRCBSTS
BOX−CBSTS
PACK-CBSTS
M2+0.18 to -0.3-+0 to -0.3
M2.5-
M3+0 to -0.3+0.1 to -0.3
M4+0.02 to -0.36+0 to -0.36
M5
M6+0.27 to -0.43+0 to -0.43
M8+0 to -0.35
M10-
ThreadT Dimension Tolerance
CBSS
CBSA
CBSRCBSTS
BOX−CBSTS
PACK-CBSTS
M2±0.07-±0.07
M2.5-
M3±0.07+0 to -0.15
M4+0.1 to -0.14+0 to -0.14
M5
M6
M8+0 to -0.14
M10-
ThreadB Dimension Tolerance
CBSS
CBSA
CBSRCBSTS
BOX−CBSTS
PACK-CBSTS
M2+0.01 to -0.03-+0.01 to 0.03
M2.5-
M3+0.08 to +0.02+0.06 to +0.02+0.08 to +0.02
M4+0.08 to +0.02
M5
M6
M8+0.095 to +0.02+0.095 to +0.02+0.095 to +0.02
M10+0.14 to +0.02-+0.14 to +0.02
L Dimension Tolerance
3 to 6±0.24
8 to 10±0.29
12 to 18±0.35
20 to 30±0.42

No Thread Locking Compound, Available in Single item
Part Number
TypeM-L
CBSS
CBSA
CBSR
CBSTS
2- 3
4
5
6
8
10
12
2.5- 3
4
5
6
8
10
12
3- 4
5
6
8
10
12
14
16
4- 5
6
8
10
12
14
16
18
20
5- 6
8
10
12
14
16
18
20
25
6- 6
8
10
12
14
16
18
20
25
30
8- 6
8
10
12
14
16
18
20
25
30
10- 10
12
14
16
18
20
25
30
.
No Thread Locking Compound (Available in Box)
Part NumberPcs./ Box.
TypeM-L
BOX-CBSTS
(Stainless Steel)
3- 5500 pcs./box
6
8
10
12
4- 5
6
8
10
12
16
5- 6
8
10
12
16
20
6- 8
10
12
16
20
25
8-10200 pcs./box
12
16
20
25
10-16
20
25150 pcs./box

 

Thread Locking Compound, Package Sale (10 pcs.), EN 1.4567 Equiv. only
Part NumberTreatment
Symbol
(a)(b)
TypeM−L
PACK−
CBSTS
3−4YBMFully Threaded Section0
 5
 6
 8
 10
 1232
4−5Fully Threaded Section0
 6
 8
 10
 1242
 14
 16
5−6Fully Threaded Section0
 8
 10
 1252
 14
 16
 20
6−8Fully Threaded Section0
 10
 1262
 14
 16
 20
 25

■Features of screws with thread locking compound

· Eliminates the need for manual adhesive application, reducing labor hours.
· There are no variations in the applied amount or misapplications due to worker error, leading to consistency and improvements in quality.
· Excellent chemical and heat resistance.
· The viscosity and application width are set so that screws can be unfastened.

■Cautions for use of screws with thread locking compound

[ ! ] The adhesive is encased in a micro capsule.
 Use within 8 months of delivery.
[ ! ] For effective thread locking, leave the screws for 72 hours or more after fastening.
[ ! ] Can be used in temperatures from -40°C to 150°C.
[ ! ] Avoid direct sunlight and moisture, and store at as low a humidity as possible.
Please be aware that contact with oil will reduce performance.

 

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