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  • [M] Diameter (Screw Thread) Nominal
  • [L] Length(mm)
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    • Stainless Steel
  • Surface Treatment
  • Strength Class (Stainless Steel)
  • Application
  • Thread Length ℓ(mm)
  • Type
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  • Socket head screws / flat head / hexagon socket / steel, stainless steel / burnished / A4-80, A2-50 (CBSST5-12)

    Cod piesă:

    CBSST5-12
    Ștergeți
    Cantitate:

    Desen de ansamblu și tabel de specificații

    Back to the Category Flat Head Screws/Low Head Screws

    Technical Drawing - Flat Head Screws

    Low Head Cap Screws - Standard:Related Image
     


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

     

    Basic Properties (e.g., material, hardness, coating, tolerance) - Flat Head Screws
     
    Type [ M ] Material [ H ] Hardness [ S ] Surface TreatmentStrength Class
    CBSH(High Strength)EN 1.7220 Equiv.32~39HRCBlack Oxide10.9
    CBSEN 1.1191 Equiv.(M3~8 • M12)
    EN 1.7220 Equiv.(M10)
    22~32HRCBlack Oxide10.9
    CBSSTH(High Strength)EN 1.4404 Equiv.--A4-80 (8.8 Equiv.)
    CBSSTEN 1.4567 Equiv.--A2-50(M2~M2.5)
    A2-70(M3~M12)
    BOX-CBSST
     

    Further specifications can be found under the tab More Information.

     

    Composition of a Product Code - Flat Head Screws
     
    Part Number
    CBSST4-10

     

    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 codurilor de piese

    Număr de articole
    Cod piesă
    CBSST5-12

    [M] Diameter (Screw Thread) Nominal

    [L] Length

    (mm)

    Material

    Surface Treatment

    Strength Class (Steel)

    Strength Class (Stainless Steel)

    Application

    Thread Length ℓ

    (mm)

    RoHS?Cantitate minimă per comandă
    5
    12
    [Stainless Steel] EN 1.4567 Equiv.
    Not Provided
    -
    A2-70
    Standard
    Full Thread
    10
    1 bucăți
    Preț unitar (fără TVA)(preț unitar cu TVA incluse)
    Dată de expediere standard
    0.47 €
    ( 0.56 € )
    Articol în stoc - 1 zi lucrătoareDisponibil pentru expediere în aceeași zi

    Informații detaliate

    Desen de ansamblu și specificații

    Back to the Category Flat Head Screws/Low Head Screws

    Technical Drawing - Flat Head Screws


    Low Head Cap Screws - Standard:Related Image

     

    Specification Tables - Flat Head Screws


    Overview of screws as PDF
     

    MxPAEBt
    max.
    r
    2x0.43.81.31.310.1 or More
    2.5x0.454.51.61.51.30.1 or More
    3x0.55.5221.50.1 or More
    4x0.772.82.52.30.2 or More
    5x0.88.53.532.70.2 or More
    6x1.0104430.25 or More
    8x1.2513553.80.4 or More
    10x1.516664.50.4 or More
    12x1.75187850.6 or More

    ■ Available in Single item
    Part NumberUnit Price
    TypeM-LCBSHCBSSTHCBSHCBSCBSSTHCBSST
    CBSCBSST
    CBSST2-4-Studs - Fully Threaded--- 
    5
    6
    2.5-4-Studs - Fully Threaded--- 
    5 
    6
    8
    10
    CBSH
    CBS
    CBSSTH
    CBSST
    3-4Studs - Fully ThreadedStuds - Fully Threaded - -
    5   
    6  
    8
    10
    12 - 
    16-  
    2012
    4-5Studs - Fully ThreadedStuds - Fully Threaded -  
    6    
    8
    10
    12
    16- - 
    20  
    25  
    5-5Studs - Fully ThreadedStuds - Fully Threaded--- 
    6  
    8   
    10  
    12
    16
    20--
    25  
    301622  
    6-8Studs - Fully ThreadedStuds - Fully Threaded- - 
    10    
    12
    16
    20
    25- - 
    3018  
    3524  
    40  
    45  
    CBSH
    CBS
    CBSST
    8-10Studs - Fully ThreadedStuds - Fully Threaded- - 
    12 
    16  
    20
    25
    30-  
    3522  
    4028  
    45  
    50  
     
    Part NumberUnit Price
    TypeM-LCBSCBSSTCBSCBSST
    CBS
    CBSST
    10-16Studs - Fully ThreadedStuds - Fully Threaded  
    20  
    25  
    30  
    35  
    40  
    453236  
    50  
    12-20Studs - Fully ThreadedStuds - Fully Threaded  
    25  
    30  
    35  
    40  
    45  
    503040  

    ■ Box
    Part NumberUnit PricePcs./ Box.
    TypeM-LPrice per pkg.1 Box
    BOX-CBSST
    (Stainless Steel)
    3-6Studs - Fully Threaded  1000 pcs./Box
    8
    10
    12  
    16
    20  
    4-6Studs - Fully Threaded  1000 pcs./Box
    8
    10
    12  
    16  
    20  500 pcs./box
    5-8Studs - Fully Threaded
    10
    12  
    16  
    20  
    6-8Studs - Fully Threaded  500 pcs./box
    10  
    12
    16  
    20  300 pcs./box
    25  
    8-10Studs - Fully Threaded  300 pcs./box
    12
    16  250 pcs./box
    20  200 pcs./box
    25  
    30  150 pcs./box


    ■Mechanical Properties (Reference)
    TypeTensile Strength (N/mm2)0.2% Proof Stress (N/mm2)Corrosion ResistanceNonmagnetic
    CBSH1040900×
    CBS800640×
    CBSSTH800640
    CBSST500210
    ◎: Excellent ○: Good △: Questionable ×: Inferior