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SLH-SD-EL | TKK Corporation


SLH-SD-EL


Socket Head Cap Screws with Low & Small Head

Dimension Drawing

Dimensions/Specifications/CAD

Part Number M L D1 L1 B t L2 Qty per Pack Mass (g)
SLH-M3-6-SD-EL 3 6 4.5 2 2 1.5 Full Thread 10 0.5
SLH-M3-8-SD-EL 3 8 4.5 2 2 1.5 Full Thread 10 0.57
SLH-M3-10-SD-EL 3 10 4.5 2 2 1.5 Full Thread 10 0.63
SLH-M3-12-SD-EL 3 12 4.5 2 2 1.5 Full Thread 10 0.7
SLH-M4-6-SD-EL 4 6 5.5 2.8 2.5 2.3 Full Thread 10 0.9
SLH-M4-8-SD-EL 4 8 5.5 2.8 2.5 2.3 Full Thread 10 1.1
SLH-M4-10-SD-EL 4 10 5.5 2.8 2.5 2.3 Full Thread 10 1.2
SLH-M4-12-SD-EL 4 12 5.5 2.8 2.5 2.3 Full Thread 10 1.4
SLH-M4-16-SD-EL 4 16 5.5 2.8 2.5 2.3 Full Thread 10 1.7
SLH-M4-20-SD-EL 4 20 5.5 2.8 2.5 2.3 Full Thread 10 2
SLH-M4-25-SD-EL 4 25 5.5 2.8 2.5 2.3 Full Thread 10 2.4
SLH-M5-8-SD-EL 5 8 7 3 3 2.2 Full Thread 10 1.7
SLH-M5-10-SD-EL 5 10 7 3 3 2.2 Full Thread 10 1.9
SLH-M5-12-SD-EL 5 12 7 3 3 2.2 Full Thread 10 2.2
SLH-M5-16-SD-EL 5 16 7 3 3 2.2 Full Thread 10 2.7
SLH-M5-20-SD-EL 5 20 7 3 3 2.2 Full Thread 10 3.2
SLH-M5-25-SD-EL 5 25 7 3 3 2.2 Full Thread 10 3.8
SLH-M6-8-SD-EL 6 8 8.5 3.5 4 2.5 Full Thread 10 2.6
SLH-M6-10-SD-EL 6 10 8.5 3.5 4 2.5 Full Thread 10 3
SLH-M6-12-SD-EL 6 12 8.5 3.5 4 2.5 Full Thread 10 3.3
SLH-M6-16-SD-EL 6 16 8.5 3.5 4 2.5 Full Thread 10 4
SLH-M6-20-SD-EL 6 20 8.5 3.5 4 2.5 Full Thread 10 4.7
SLH-M6-25-SD-EL 6 25 8.5 3.5 4 2.5 Full Thread 10 5.6
SLH-M6-30-SD-EL 6 30 8.5 3.5 4 2.5 18 10 6.5
SLH-M8-10-SD-EL 8 10 11 4.5 5 3.3 Full Thread 10 5.9
SLH-M8-12-SD-EL 8 12 11 4.5 5 3.3 Full Thread 10 6.5
SLH-M8-16-SD-EL 8 16 11 4.5 5 3.3 Full Thread 10 7.8
SLH-M8-20-SD-EL 8 20 11 4.5 5 3.3 Full Thread 10 9.1
SLH-M8-25-SD-EL 8 25 11 4.5 5 3.3 Full Thread 10 11
SLH-M8-30-SD-EL 8 30 11 4.5 5 3.3 Full Thread 10 12
SLH-M8-35-SD-EL 8 35 11 4.5 5 3.3 22 10 14
SLH-M10-16-SD-EL 10 16 13.5 5.5 6 4 Full Thread 10 13
SLH-M10-20-SD-EL 10 20 13.5 5.5 6 4 Full Thread 10 15
SLH-M10-25-SD-EL 10 25 13.5 5.5 6 4 Full Thread 10 17
SLH-M10-30-SD-EL 10 30 13.5 5.5 6 4 Full Thread 10 20
SLH-M10-35-SD-EL 10 35 13.5 5.5 6 4 Full Thread 10 22
SLH-M10-40-SD-EL 10 40 13.5 5.5 6 4 Full Thread 10 25

Material/Finish

SLH-SD-EL
Main Body SWCH45K Electroless Nickel Plating
Strength Class 8.8

Application

Reducing the size of equipment and devices

Characteristics

  • Socket head cap screws with small head diameters. Able to reduce the spot facing diameters compared to standard socket head cap screws.

Usage example

It is possible to perform spot facing and hide the head in locations where spot facing is not possible with standard socket head cap screws.

Precautions for Use

  • Since the head bearing surface area is small, bearing surface pressure become high.
  • Using the following formula as a reference, ensure that the bearing surface pressure due to screw tightening does not exceed the permitted surface pressure of the intended fastening material.

Head Diameter and Screw Effective Cross-sectional Area

Part Number Head Diameter(mm) Screw effective cross- sectional area(mm2)
SNS-M3-SD 4.5 5.03
SNS-M4-SD 5.5 8.78
SNS-M5-SD 7 14.2
SNS-M6-SD 8.5 20.1
SNS-M8-SD 11 36.6
SNS-M10-SD 13.5 58
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