Comparison of the Dimensions of Low Profile Screws and Small Head Screws

These are comparison tables of head dimensions for standard screws, low profile screws, and small head screws.
Products with the desired dimensions may be easily selected.

Comparison of the Head Heights of Low Profile Screws and Standard Screws

Head shape JIS B 1176 Low Head Socket
ButtonHead withFlange
Special Low Special Low
Hexagon
Head
 
Extra Low Head
Recess Hexagon
Socket
Hexalobular
Socket
Hexagon
Socket
Hexagon
Socket
Hexalobular
Socket
Hexagon
Socket
Tamper
Resistance
- Cross
Recessed
Hexalobular
Socket
Unit:mm
Pictures







SRSHS

SNHS-LH


 Head Height
Size
(M)
 M2 2 1.55 - 1.3 - 1.2 1.1 0.6 - - 0.5
 M2.5 2.5 1.85 - 1.6 - 1.3 1.3 0.8 - - -
 M2.6 2.6 - - - - - - - - - 0.6
 M3 3 2.4 - 2 1.65 1.3 1.3 1.3 - 0.8 0.8
 M4 4 3.1 2.8 2.8 2.2 1.5 1.5 1.5 1.5 0.9 0.9
 M5 5 3.65 3.5 3.5 2.75 1.5 1.5 - 2 - 1
 M6 6 4.4 4 4 3.3 1.5 1.5 - 2 - 1.2
 M8 8 - 5 5 4.4 1.5 1.5 - 2 - -
 M10 10 - -

6

- - 1.5 - - - -
Line Up
Material
Steel  Ferrosoferric Oxide Film (Black) - - SLP
(with Pilot Recess)
SLH SFB - SSH - - - -
 Trivalent Chromate
Treatment
- SLT-TZB - SLH-TZB - - - - SEQ-TZB -
Black Trivalent Chromate Treatment - - - - - - - - - SEQ-TBZ -
 Electroless Nickel Plating - - - - SFB-EL - SSH-EL - - - -
 Nickel Plating - - - - - - - - - - SET-NI
 Black Nickel Plating - - - - - - - - - - SET-BNI
 SUSXM7
(Equivalent to SUS304)
- SLTS - SLHS SFBS SSTS SSHS
SSHS-FT
(FullThread)

SVSHS
(Ventilation Hole)
SRSHS SNHS-LH - SETS
 SUS316L - - - SLHL - - SSHL - - - -
TW435
(Grade2 Titanium)
- - - - - - SSHT  - - - -
 A5056 - - - - - - -  - - - SETA
 Plastic - - - SPE-LC
SPA-LC
- - -  - - - -

Comparison of the Head Diameter of Small Head Screws and Standard Screws

Unit:mm
Head Diameter JIS B 1176 Small Head
Head Height JIS B 1176 JIS B 1176 Low Head Special Low
Head shape/Recess Hexagon
Socket
Hexagon
Socket
Hexagon
Socket
Hexagon
Socket
Pictures



 
 Head Diameter
Size
(M)
M2  3.8 3 - 3.2
M2.5 4.5 3.8 - 4
M3 5.5 4.5 4.5 5
M4 7 5.5 5.5 6
M5 8.5 7 7 8
M6 10 8.5 8.5 9
M8 13 11 11 11
M10 16 13.5 13.5 13.5
Line Up
Material
           
Steel Ferrosoferric Oxide Film (Black) - SNS-SD SLH-SD SSH-SD
Electroless Nickel Plating - SNS-SD-EL SLH-SD-EL SSH-SD-EL
SUSXM7
(Equivalent to SUS304)
- SNSS-SD SLHS-SD SSHS-SD

Unit:mm
Head Diameter JIS B 1111* Small Head
Head shape/Recess Cross Recessed Flat Head Cross Recessed Flat Head
 Pictures
 

Head Diameter
Size
(M)
M3 6 5
M4 8 6
M5 10 8
M6 12 10
Line Up
Material
Steel Trivalent
Chromate
Treatment
- SNF-SD-TZB
SUSXM7
(Equivalent to SUS304)
- SNFS-SD
*Values for cross recessed flat head machine screws not according to ISO 7046 as regulated in the attached.




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