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Tap pin exclusive for resin Non-Sert | Self-tapping screws | Saima Corporation

4th Generation
Thread forming Tapping Screw for thermoplastic!!

Self-Tapping Screws "Non-Sert" Products

Nonsert Steel 3Cr. Plating thickness 5μm guarantee.

Self Tapping Screws for Plastic ISO Cross Recess Pan Head Non-Sert
ISO Cross Recess Pan Head Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic Cross Recess Flat Head Non-Sert
Cross Recess Flat Head Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic #0 Cross Recess Pan Head Non-Sert
#0 Cross Recess Pan Head Non-Sert
Steel Black Ni

Self Tapping Screws for Plastic JIS Cross Recess pan Head Non-Sert
JIS Cross Recess pan Head Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic JIS Cross Recess Pan Head Non-Sert
JIS Cross Recess Pan Head Non-Sert
Stainless A2

Self Tapping Screws for Plastic Cross Recess Washer Head Non-Sert
Cross Recess Washer Head Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic Cross Recess Binding Head Non-Sert
Cross Recess Binding Head Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic QuaStix Non-Sert
QuaStix Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic 310Slim Non-Sert
310Slim Non-Sert
Steel 3Cr

Self Tapping Screws for Plastic 310Slim Non-Sert
310Slim Non-Sert
Steel 3Cr Black

Self Tapping Screws for Plastic Cross recess pan head self tapping screw for SANYO DENKI FAN
Cross recess pan head self tapping screw for SANYO DENKI FAN
Steel 3Cr

Self Tapping Screws for Plastic Cross recess 120°flat head sef tapping screw for SANYO DENKI FAN
Cross recess 120°flat head sef tapping screw for SANYO DENKI FAN
Steel 3Cr

Non-Sert no insert | Self Tapping Screws for Plastic | Saima Corporation

No Need Metal Insert

Possible to reduce the cost without metal insert.
No need countersinking process & expense for the metal insert.

non-sert will help you save total cost and time

Non-Sert Thread Angle 30° | Self Tapping Screws for Plastic | Saima Corporation

Sharp thread angle “30°”

Less stress and cracking on your plastic product.

Non-Sert Thread shape | Self Tapping Screws for Plastic | Saima Corporation

Best for repeat use

Trilobular thread = Low driving torque = less stress on the plastic.

non-sert can be used repeatedly on the same pilot hole

Non-Sert Thread shape | Self Tapping Screws for Plastic | Saima Corporation

Low driving torque[TD] &
High failure torque[TF]

Ttrilobular thread & sharp thread angle "30°" achieve low TD & high TF.

Torque Analayzer | Self Tapping Screws for Plastic | Saima Corporation

Pilot hole dia. & Torque of setting

Torque Analyzer will...

  • Find the best hole dia
  • Find the best setting torque

Please feel to ask us if you're annoyed with cracking & idling

NonSert Application Situation

  • No Metal Insert Required. Cost Reduction.
  • Easy to recycle without metal insert.
  • Cracking is not expected
  • Plastic Crack happen place
  • Repeatable application
  • Low torque driving, low stress for Self Tapping Screws Plastic

Applications

Non-Sert Example of use1 | Self Tapping Screws for Plastic | Saima Corporation
  • Non-Sert Example of use2 | Self Tapping Screws for Plastic | Saima Corporation

    HOCHIKI Corporation
    Gas alarm

    By adopting nonsert, it can be used as it is for resin and it becomes possible to use it repeatedly for maintenance

  • Non-Sert Example of use5 | Self Tapping Screws for Plastic | Saima Corporation

    LAWSON Inc.

    Microphone Capsule
    M1.6x4.0 Nonsert tighten strictly for microphone parts.

  • Non-Sert Example of use4 | Self Tapping Screws for Plastic | Saima Corporation

    Welco Corporation
    High performance small tube pump

    Adopted nonsert for fastening of motor part and tube part housing

  • Non-Sert Example of use1 | Self Tapping Screws for Plastic | Saima Corporation

    Plasma TV stand

    By adopting nonsert, costs are reduced without requiring inserts

  • Non-Sert Example of use3 | Self Tapping Screws for Plastic | Saima Corporation

    Trolley for pachinko parlor

    Even with heavy pachinko balls it is hard to loosen
    Nonsert is also strong for loose

SY-Non-Sert for SANYO DENKI FAN '' SAN ACE ''

This is special Non-Sert with development together.
"120° Flat Head type and Small Pan Head type Nonsert"
These SY-Non-Serts are is recommended
by the SANYO DENKI CO., Ltd Technical date as below.

Pan Head SY-Non-Sert | Self Tapping Screws for Plastic | Saima Corporation

Flat Head SY-Non-Sert | Self Tapping Screws for Plastic | Saima Corporation


4thGeneration Thread Forming

Resin, Plastic and Engineering Plastic Fastening Plastic counterpart is much weaker than Steel Screw.
Therefore, to prevent the plastic breaking or cracking, SAIMA is stronly recommended to use “specialized screw for plastic”.

1st Generation: JIS B 1122 type 2 (Self Tapping Screws for Plastic)

Suitable for thin plate and plastic fastening as stated in JIS B1122 appendix.
Widely distributed as a standard screw. Average Performance.

2nd Generation: B-type (Self Tapping Screws for Plastic)

Advanced form of JIS B 1122 Class 2, with trilobular thread, same thread angle (60 degree) and pitch.
Tightening Torque is lower than 1st generation according to torque analysis result.
Suitable for thin plate and plastic fastening.

3rd Generation : P-type (Self Tapping Screws for Plastic)

Double threaded with 45° thread angle, wider thread compared with B-type and trilobular thread.
Double started thread makes the fastening speed twice high, but loosens faster once the screw starts loosening.
This makes TF point and TD point higher, so we havet to pay attention F/D ratio.
This is not suitable for repeated application on the same pilot hole.
TD: Torque of Driving
Min. Torque for fatening

TF: Torque of Failure
Torque for breaking counter material. it includes idling and crack

TS: Torque of Setting
Best Torque of Setting

4th Generation : Non-Sert (Self Tapping Screws for Plastic)

Single threaded same as 1st and 2nd Generation with 30 degree thread angle, trilobular thread shape and large pitch. Lowest TD(Torque of Driving) in all generations. Low stress against the plastic part. TF(Torque of Failure) is lower than 3rd Generation, but mostly T/F ratio indicate higher, these results conclude that using Non-Sert is safe and best Self Tapping Screws for Self Tapping Screws for Plastic fastening. In addition that Best for repeat use on the same hole.

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