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  • Special Screws
  • Loosening Prevention

Socket Head Cap Screws with Small Head and Nylon Patch

SNSS-SD-ALK

  • Space
  • Slim
  • Vibration resistant treatment

Dimension Drawing

SNSS-SD-ALKSocket Head Cap Screws with Small Head and Nylon Patch寸法図

Specs/CAD

Select

M (Coarse)
Nominal of Thread
All
M2
M2.5
M3
M4
M5
M6
M8
L
All
3
4
5
6
8
10
12
16
20
25
30
35

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Qty per Pack Mass
(g)
CAD
Download
RFQ
SNSS-M2-3-SD-ALK M2 0.4 3 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-4-SD-ALK M2 0.4 4 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-5-SD-ALK M2 0.4 5 3 2 1.5 10 0.82 CAD RFQ
SNSS-M2-6-SD-ALK M2 0.4 6 3 2 1.5 10 0.92 CAD RFQ
SNSS-M2.5-4-SD-ALK M2.5 0.45 4 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-5-SD-ALK M2.5 0.45 5 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-6-SD-ALK M2.5 0.45 6 3.8 2.5 2 10 0.63 CAD RFQ
SNSS-M2.5-8-SD-ALK M2.5 0.45 8 3.8 2.5 2 10 0.73 CAD RFQ
SNSS-M3-5-SD-ALK M3 0.5 5 4.5 3 2.5 10 0.53 CAD RFQ
SNSS-M3-6-SD-ALK M3 0.5 6 4.5 3 2.5 10 0.57 CAD RFQ
SNSS-M3-8-SD-ALK M3 0.5 8 4.5 3 2.5 10 0.62 CAD RFQ
SNSS-M3-10-SD-ALK M3 0.5 10 4.5 3 2.5 10 0.74 CAD RFQ
SNSS-M3-12-SD-ALK M3 0.5 12 4.5 3 2.5 10 0.83 CAD RFQ
SNSS-M4-6-SD-ALK M4 0.7 6 5.5 4 3 10 1.2 CAD RFQ
SNSS-M4-8-SD-ALK M4 0.7 8 5.5 4 3 10 1.3 CAD RFQ
SNSS-M4-10-SD-ALK M4 0.7 10 5.5 4 3 10 1.5 CAD RFQ
SNSS-M4-12-SD-ALK M4 0.7 12 5.5 4 3 10 1.6 CAD RFQ
SNSS-M4-16-SD-ALK M4 0.7 16 5.5 4 3 10 1.9 CAD RFQ
SNSS-M4-20-SD-ALK M4 0.7 20 5.5 4 3 10 2.3 CAD RFQ
SNSS-M4-25-SD-ALK M4 0.7 25 5.5 4 3 10 2.7 CAD RFQ
SNSS-M5-8-SD-ALK M5 0.8 8 7 4.5 4 10 2.5 CAD RFQ
SNSS-M5-10-SD-ALK M5 0.8 10 7 4.5 4 10 2.7 CAD RFQ
SNSS-M5-12-SD-ALK M5 0.8 12 7 4.5 4 10 3 CAD RFQ
SNSS-M5-16-SD-ALK M5 0.8 16 7 4.5 4 10 3.5 CAD RFQ
SNSS-M5-20-SD-ALK M5 0.8 20 7 4.5 4 10 4 CAD RFQ
SNSS-M5-25-SD-ALK M5 0.8 25 7 4.5 4 10 4.6 CAD RFQ
SNSS-M6-8-SD-ALK M6 1 8 8.5 5.5 5 10 3.6 CAD RFQ
SNSS-M6-10-SD-ALK M6 1 10 8.5 5.5 5 10 3.9 CAD RFQ
SNSS-M6-12-SD-ALK M6 1 12 8.5 5.5 5 10 4.3 CAD RFQ
SNSS-M6-16-SD-ALK M6 1 16 8.5 5.5 5 10 5 CAD RFQ
SNSS-M6-20-SD-ALK M6 1 20 8.5 5.5 5 10 5.7 CAD RFQ
SNSS-M6-25-SD-ALK M6 1 25 8.5 5.5 5 10 6.5 CAD RFQ
SNSS-M6-30-SD-ALK M6 1 30 8.5 5.5 5 10 7.4 CAD RFQ
SNSS-M8-10-SD-ALK M8 1.25 10 11 7.5 6 10 8.1 CAD RFQ
SNSS-M8-12-SD-ALK M8 1.25 12 11 7.5 6 10 8.7 CAD RFQ
SNSS-M8-16-SD-ALK M8 1.25 16 11 7.5 6 10 10 CAD RFQ
SNSS-M8-20-SD-ALK M8 1.25 20 11 7.5 6 10 11 CAD RFQ
SNSS-M8-25-SD-ALK M8 1.25 25 11 7.5 6 10 13 CAD RFQ
SNSS-M8-30-SD-ALK M8 1.25 30 11 7.5 6 10 15 CAD RFQ
SNSS-M8-35-SD-ALK M8 1.25 35 11 7.5 6 10 16 CAD RFQ
Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Qty per Pack Mass
(g)
CAD
Download
RFQ
SNSS-M2-3-SD-ALK M2 0.4 3 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-4-SD-ALK M2 0.4 4 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-5-SD-ALK M2 0.4 5 3 2 1.5 10 0.82 CAD RFQ
SNSS-M2-6-SD-ALK M2 0.4 6 3 2 1.5 10 0.92 CAD RFQ
SNSS-M2.5-4-SD-ALK M2.5 0.45 4 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-5-SD-ALK M2.5 0.45 5 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-6-SD-ALK M2.5 0.45 6 3.8 2.5 2 10 0.63 CAD RFQ
SNSS-M2.5-8-SD-ALK M2.5 0.45 8 3.8 2.5 2 10 0.73 CAD RFQ
SNSS-M3-5-SD-ALK M3 0.5 5 4.5 3 2.5 10 0.53 CAD RFQ
SNSS-M3-6-SD-ALK M3 0.5 6 4.5 3 2.5 10 0.57 CAD RFQ
SNSS-M3-8-SD-ALK M3 0.5 8 4.5 3 2.5 10 0.62 CAD RFQ
SNSS-M3-10-SD-ALK M3 0.5 10 4.5 3 2.5 10 0.74 CAD RFQ
SNSS-M3-12-SD-ALK M3 0.5 12 4.5 3 2.5 10 0.83 CAD RFQ
SNSS-M4-6-SD-ALK M4 0.7 6 5.5 4 3 10 1.2 CAD RFQ
SNSS-M4-8-SD-ALK M4 0.7 8 5.5 4 3 10 1.3 CAD RFQ
SNSS-M4-10-SD-ALK M4 0.7 10 5.5 4 3 10 1.5 CAD RFQ
SNSS-M4-12-SD-ALK M4 0.7 12 5.5 4 3 10 1.6 CAD RFQ
SNSS-M4-16-SD-ALK M4 0.7 16 5.5 4 3 10 1.9 CAD RFQ
SNSS-M4-20-SD-ALK M4 0.7 20 5.5 4 3 10 2.3 CAD RFQ
SNSS-M4-25-SD-ALK M4 0.7 25 5.5 4 3 10 2.7 CAD RFQ
SNSS-M5-8-SD-ALK M5 0.8 8 7 4.5 4 10 2.5 CAD RFQ
SNSS-M5-10-SD-ALK M5 0.8 10 7 4.5 4 10 2.7 CAD RFQ
SNSS-M5-12-SD-ALK M5 0.8 12 7 4.5 4 10 3 CAD RFQ
SNSS-M5-16-SD-ALK M5 0.8 16 7 4.5 4 10 3.5 CAD RFQ
SNSS-M5-20-SD-ALK M5 0.8 20 7 4.5 4 10 4 CAD RFQ
SNSS-M5-25-SD-ALK M5 0.8 25 7 4.5 4 10 4.6 CAD RFQ
SNSS-M6-8-SD-ALK M6 1 8 8.5 5.5 5 10 3.6 CAD RFQ
SNSS-M6-10-SD-ALK M6 1 10 8.5 5.5 5 10 3.9 CAD RFQ
SNSS-M6-12-SD-ALK M6 1 12 8.5 5.5 5 10 4.3 CAD RFQ
SNSS-M6-16-SD-ALK M6 1 16 8.5 5.5 5 10 5 CAD RFQ
SNSS-M6-20-SD-ALK M6 1 20 8.5 5.5 5 10 5.7 CAD RFQ
SNSS-M6-25-SD-ALK M6 1 25 8.5 5.5 5 10 6.5 CAD RFQ
SNSS-M6-30-SD-ALK M6 1 30 8.5 5.5 5 10 7.4 CAD RFQ
SNSS-M8-10-SD-ALK M8 1.25 10 11 7.5 6 10 8.1 CAD RFQ
SNSS-M8-12-SD-ALK M8 1.25 12 11 7.5 6 10 8.7 CAD RFQ
SNSS-M8-16-SD-ALK M8 1.25 16 11 7.5 6 10 10 CAD RFQ
SNSS-M8-20-SD-ALK M8 1.25 20 11 7.5 6 10 11 CAD RFQ
SNSS-M8-25-SD-ALK M8 1.25 25 11 7.5 6 10 13 CAD RFQ
SNSS-M8-30-SD-ALK M8 1.25 30 11 7.5 6 10 15 CAD RFQ
SNSS-M8-35-SD-ALK M8 1.25 35 11 7.5 6 10 16 CAD RFQ
Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Qty per Pack Mass
(g)
CAD
Download
RFQ
SNSS-M2-3-SD-ALK M2 0.4 3 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-4-SD-ALK M2 0.4 4 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-5-SD-ALK M2 0.4 5 3 2 1.5 10 0.82 CAD RFQ
SNSS-M2-6-SD-ALK M2 0.4 6 3 2 1.5 10 0.92 CAD RFQ
SNSS-M2.5-4-SD-ALK M2.5 0.45 4 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-5-SD-ALK M2.5 0.45 5 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-6-SD-ALK M2.5 0.45 6 3.8 2.5 2 10 0.63 CAD RFQ
SNSS-M2.5-8-SD-ALK M2.5 0.45 8 3.8 2.5 2 10 0.73 CAD RFQ
SNSS-M3-5-SD-ALK M3 0.5 5 4.5 3 2.5 10 0.53 CAD RFQ
SNSS-M3-6-SD-ALK M3 0.5 6 4.5 3 2.5 10 0.57 CAD RFQ
SNSS-M3-8-SD-ALK M3 0.5 8 4.5 3 2.5 10 0.62 CAD RFQ
SNSS-M3-10-SD-ALK M3 0.5 10 4.5 3 2.5 10 0.74 CAD RFQ
SNSS-M3-12-SD-ALK M3 0.5 12 4.5 3 2.5 10 0.83 CAD RFQ
SNSS-M4-6-SD-ALK M4 0.7 6 5.5 4 3 10 1.2 CAD RFQ
SNSS-M4-8-SD-ALK M4 0.7 8 5.5 4 3 10 1.3 CAD RFQ
SNSS-M4-10-SD-ALK M4 0.7 10 5.5 4 3 10 1.5 CAD RFQ
SNSS-M4-12-SD-ALK M4 0.7 12 5.5 4 3 10 1.6 CAD RFQ
SNSS-M4-16-SD-ALK M4 0.7 16 5.5 4 3 10 1.9 CAD RFQ
SNSS-M4-20-SD-ALK M4 0.7 20 5.5 4 3 10 2.3 CAD RFQ
SNSS-M4-25-SD-ALK M4 0.7 25 5.5 4 3 10 2.7 CAD RFQ
SNSS-M5-8-SD-ALK M5 0.8 8 7 4.5 4 10 2.5 CAD RFQ
SNSS-M5-10-SD-ALK M5 0.8 10 7 4.5 4 10 2.7 CAD RFQ
SNSS-M5-12-SD-ALK M5 0.8 12 7 4.5 4 10 3 CAD RFQ
SNSS-M5-16-SD-ALK M5 0.8 16 7 4.5 4 10 3.5 CAD RFQ
SNSS-M5-20-SD-ALK M5 0.8 20 7 4.5 4 10 4 CAD RFQ
SNSS-M5-25-SD-ALK M5 0.8 25 7 4.5 4 10 4.6 CAD RFQ
SNSS-M6-8-SD-ALK M6 1 8 8.5 5.5 5 10 3.6 CAD RFQ
SNSS-M6-10-SD-ALK M6 1 10 8.5 5.5 5 10 3.9 CAD RFQ
SNSS-M6-12-SD-ALK M6 1 12 8.5 5.5 5 10 4.3 CAD RFQ
SNSS-M6-16-SD-ALK M6 1 16 8.5 5.5 5 10 5 CAD RFQ
SNSS-M6-20-SD-ALK M6 1 20 8.5 5.5 5 10 5.7 CAD RFQ
SNSS-M6-25-SD-ALK M6 1 25 8.5 5.5 5 10 6.5 CAD RFQ
SNSS-M6-30-SD-ALK M6 1 30 8.5 5.5 5 10 7.4 CAD RFQ
SNSS-M8-10-SD-ALK M8 1.25 10 11 7.5 6 10 8.1 CAD RFQ
SNSS-M8-12-SD-ALK M8 1.25 12 11 7.5 6 10 8.7 CAD RFQ
SNSS-M8-16-SD-ALK M8 1.25 16 11 7.5 6 10 10 CAD RFQ
SNSS-M8-20-SD-ALK M8 1.25 20 11 7.5 6 10 11 CAD RFQ
SNSS-M8-25-SD-ALK M8 1.25 25 11 7.5 6 10 13 CAD RFQ
SNSS-M8-30-SD-ALK M8 1.25 30 11 7.5 6 10 15 CAD RFQ
SNSS-M8-35-SD-ALK M8 1.25 35 11 7.5 6 10 16 CAD RFQ
Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Qty per Pack Mass
(g)
CAD
Download
RFQ
SNSS-M2-3-SD-ALK M2 0.4 3 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-4-SD-ALK M2 0.4 4 3 2 1.5 10 0.72 CAD RFQ
SNSS-M2-5-SD-ALK M2 0.4 5 3 2 1.5 10 0.82 CAD RFQ
SNSS-M2-6-SD-ALK M2 0.4 6 3 2 1.5 10 0.92 CAD RFQ
SNSS-M2.5-4-SD-ALK M2.5 0.45 4 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-5-SD-ALK M2.5 0.45 5 3.8 2.5 2 10 0.53 CAD RFQ
SNSS-M2.5-6-SD-ALK M2.5 0.45 6 3.8 2.5 2 10 0.63 CAD RFQ
SNSS-M2.5-8-SD-ALK M2.5 0.45 8 3.8 2.5 2 10 0.73 CAD RFQ
SNSS-M3-5-SD-ALK M3 0.5 5 4.5 3 2.5 10 0.53 CAD RFQ
SNSS-M3-6-SD-ALK M3 0.5 6 4.5 3 2.5 10 0.57 CAD RFQ
SNSS-M3-8-SD-ALK M3 0.5 8 4.5 3 2.5 10 0.62 CAD RFQ
SNSS-M3-10-SD-ALK M3 0.5 10 4.5 3 2.5 10 0.74 CAD RFQ
SNSS-M3-12-SD-ALK M3 0.5 12 4.5 3 2.5 10 0.83 CAD RFQ
SNSS-M4-6-SD-ALK M4 0.7 6 5.5 4 3 10 1.2 CAD RFQ
SNSS-M4-8-SD-ALK M4 0.7 8 5.5 4 3 10 1.3 CAD RFQ
SNSS-M4-10-SD-ALK M4 0.7 10 5.5 4 3 10 1.5 CAD RFQ
SNSS-M4-12-SD-ALK M4 0.7 12 5.5 4 3 10 1.6 CAD RFQ
SNSS-M4-16-SD-ALK M4 0.7 16 5.5 4 3 10 1.9 CAD RFQ
SNSS-M4-20-SD-ALK M4 0.7 20 5.5 4 3 10 2.3 CAD RFQ
SNSS-M4-25-SD-ALK M4 0.7 25 5.5 4 3 10 2.7 CAD RFQ
SNSS-M5-8-SD-ALK M5 0.8 8 7 4.5 4 10 2.5 CAD RFQ
SNSS-M5-10-SD-ALK M5 0.8 10 7 4.5 4 10 2.7 CAD RFQ
SNSS-M5-12-SD-ALK M5 0.8 12 7 4.5 4 10 3 CAD RFQ
SNSS-M5-16-SD-ALK M5 0.8 16 7 4.5 4 10 3.5 CAD RFQ
SNSS-M5-20-SD-ALK M5 0.8 20 7 4.5 4 10 4 CAD RFQ
SNSS-M5-25-SD-ALK M5 0.8 25 7 4.5 4 10 4.6 CAD RFQ
SNSS-M6-8-SD-ALK M6 1 8 8.5 5.5 5 10 3.6 CAD RFQ
SNSS-M6-10-SD-ALK M6 1 10 8.5 5.5 5 10 3.9 CAD RFQ
SNSS-M6-12-SD-ALK M6 1 12 8.5 5.5 5 10 4.3 CAD RFQ
SNSS-M6-16-SD-ALK M6 1 16 8.5 5.5 5 10 5 CAD RFQ
SNSS-M6-20-SD-ALK M6 1 20 8.5 5.5 5 10 5.7 CAD RFQ
SNSS-M6-25-SD-ALK M6 1 25 8.5 5.5 5 10 6.5 CAD RFQ
SNSS-M6-30-SD-ALK M6 1 30 8.5 5.5 5 10 7.4 CAD RFQ
SNSS-M8-10-SD-ALK M8 1.25 10 11 7.5 6 10 8.1 CAD RFQ
SNSS-M8-12-SD-ALK M8 1.25 12 11 7.5 6 10 8.7 CAD RFQ
SNSS-M8-16-SD-ALK M8 1.25 16 11 7.5 6 10 10 CAD RFQ
SNSS-M8-20-SD-ALK M8 1.25 20 11 7.5 6 10 11 CAD RFQ
SNSS-M8-25-SD-ALK M8 1.25 25 11 7.5 6 10 13 CAD RFQ
SNSS-M8-30-SD-ALK M8 1.25 30 11 7.5 6 10 15 CAD RFQ
SNSS-M8-35-SD-ALK M8 1.25 35 11 7.5 6 10 16 CAD RFQ

● When purchasing less volume than one full bag, a separate handling fee is charged. For details, see the Sold Separately Service.


Related Services

Material/Finish

SNSS-SD-ALK
Main Body SUSXM7 (Equivalent to SUS304)
Nylon Patch Nylon 11
Strength Class A2 - 70

Application

Reducing the size of equipment and devices
Screw return and fallout prevented

Characteristics

  • Screws with small heads and nylon patch. Able to reduce the spot facing diameters compared to standard hex socket head cap screws.
  • The friction of the nylon adhered to the thread suppresses the return rotation of the thread.
  • Even if the tightening force is lost, the return rotation is suppressed, preventing the screws from falling off.
  • The heat resistant temperature of the nylon patch is 120°C.

Usage Example

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

SNSS-SD-ALKSocket Head Cap Screws with Small Head and Nylon Patch


Precautions for Use

  • Since the head bearing surface area is small, the bearing surface pressure increases.
  • 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.

SNSS-SD-ALKSocket Head Cap Screws with Small Head and Nylon Patch

Head Diameter and Screw Effective Cross-Sectional Area

Part Number Head Diameter (mm) Screw Effective Cross-Sectional Area (mm2)
SNSS-M2-SD-ALK 3 2.07
SNSS-M2.5-SD-ALK 3.8 3.39
SNSS-M3-SD-ALK 4.5 5.03
SNSS-M4-SD-ALK 5.5 8.78
SNSS-M5-SD-ALK 7 14.2
SNSS-M6-SD-ALK 8.5 20.1
SNSS-M8-SD-ALK 11 36.6

Product List

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