Date Published:Aug. 04. 2016

Description of Low Profile Screws for the Engineers

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About Low Profile Screws (Low Profile Cap Screws)

These are screws with a lower head height than ordinary screws, referred to as "low profile screws" or "low profile cap screws".
When compared with nominal M6 screws, the low profile cap screw has a head height of 4mm, unlike 6mm for typical hex socket head cap screws.

>>Dimension comparison for low profile and small head screws

Advantages of using low profile screws

They are ideal for space-saving in equipment/devices and applications with limited space to fasten screws.
In addition, because they protrude less after fastening, they do not affect the appearance.

Examples of Use

To prevent interference when opening and closing equipment doors

On equipment that does not allow deep countersunk holes

NBK's Low Profile Screws

NBK offers several varieties of low profile screws.
These screws are available in nominals M2 to M10 and materials including steel, stainless steel, titanium, aluminum and resin.
They are available in many types including just simple low head screws, "ventilation hole types" ideal for vacuum equipment, and “tamper resistant types” which require special tools for fastening and removal.
NBK proposes low profile screws that best suit customers' needs with a selection unique to a specialized manufacturer.

Recommended Lineup

Tamper Resistant Special Low Profile Cap Screws

Tamper Resistant Screws with head height of 1.5mm or less. This impedes mounting and removing with regular tools.
The low head height makes it difficult to remove the screws by grasping the head itself, making them excellent for theft prevention.

>>See Product Details

Hex Socket Head Cap Screws with Special Low Profile (SUS316L)

NBK's original stainless steel hex socket head cap screws with special low profile.
Compared to SUS304, SUS316L has excellent hydrogen embrittlement resistance, fluorine and chlorine gas resistance, and heat resistance.
This screw also resists corrosion against chemical products and seawater environments. That matches or exceeds that of SUS304.

>>Made of SUS316L Low Profile Screws
>>Made of SUS316L Special Low Profile Screws

Hex Socket Head Cap Screws with Special Low Profile (Electroless Nickel Plating)

Special low profile cap screws with electroless nickel plating.
The head height is 1.5mm or less and the electroless nickel plating has gloss, making them suitable for decoration.

>>See Product Details

Socket Button Head Cap Screws with Flange

Socket button head cap screws with wide bearing surface, resistant to loosening.
The flange eliminates the need for a separate washer.

Socket Button Head Cap Screws with Flange SFB
Socket Button Head Cap Screws with Flange (Electroless Nickel Plating) SFB-EL
Socket Button Head Cap Screws with Flange (Stainless Steel)  SFBS


Various other low profile screws are also available.

Dimension comparison for low profile and small head screws

The link below will take you to our head dimension comparison for ordinary hex socket head cap screws, low profile screws, and small head screws.
Products with your desired dimensions may be easily selected.

>>Dimension comparison for low profile and small head screws

Additional Services

Length Adjustment

Screws can be cut to your desired length in 1mm increments.

Click here for details. >

Vibration Resistance

Anti-loosening treatments for screws are available. These are beneficial for applications requiring anti-loosening screw operations or sealing. Our anti-loosening treatments save you the trouble of applying adhesive or sealing tape.

Click here for details. >

Cleanroom Services

We can wash and pack your products in a cleanroom. This is suggested for products used in FPD production devices, semiconductor manufacturing devices, medical equipment, food and beverage machinery and even products that will be used in cleanrooms.

Click here for details. >

Captive Processing

Screws can be provided with relief cut and fall-out prevention functions originally designed to fix protective and inspection covers that are frequently installed and removed.

Click here for details. >

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