4th Generation/Tapping Screw for soft plastic!
Self-Tapping Screws for Plastic “Non-Sert”
Pan Head Non-Sert
Steel 3Cr
Flat Head Non-Sert
Steel 3Cr
Pan Head Non-Sert
Steel Black Ni
Pan Head Non-Sert
Steel 3Cr
Pan Head Non-Sert
Stainless A2
Washer Head Non-Sert
Steel 3Cr
Binding Head Non-Sert
Steel 3Cr
Steel 3Cr
Steel 3Cr
Steel 3Cr Black
self tapping screw for
SANYO DENKI FAN
Steel 3Cr
self tapping screw for
SANYO DENKI FAN
Steel 3Cr BLACK
self tapping screw for
SANYO DENKI FAN
Steel 3Cr
self tapping screw for
SANYO DENKI FAN
Steel 3Cr BLACK
Made-to-order Non-Sert
Even if it is not listed in the catalog, it can be made to order.
e.g. 6-lob, Tamper-proof recesses, Truss heads, Round countersunk heads, Various platings, etc.
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.
Sharp Thread Angle “30°”
Less stress and cracking on your plastic product.
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.
Trilobular thread = Low driving torque = less stress on the plastic.
non-sert can be used repeatedly on the same pilot hole
Low Driving Torque[TD] & High Failure Torque[TF]
Trilobular thread & sharp thread angle “30°” achieve low TD & high TF.
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.
“Non-Sert” Hole Size (Self-Tapping Screws for Plastic)
Non-Sert is thread forming tapping screw to plastic material directly.
This thread structure is difficult to idling, and repeatable use.
*This table is as only reference.
*The best condition of hole diameter varies depending on the material and shape,
so We recommend using a PC Torque Analyzer to measure the optimum hole diameter.
| Material | Hole Size (d Size x) | |
|---|---|---|
| ABS | 0.80 | |
| PA6/6.6 | 0.75 | |
| PC | 0.85 | |
| PE | 0.70 – 0.75 | |
| PET | 0.75 | |
| PMMA | 0.85 | |
| POM | 0.75 | |
| PP | 0.70 | |
| PPO | 0.80 | |
| PS | 0.80 | |
| FRP | PET 30% | 0.80 |
| PA6 30% | 0.82 | |
| PA6.6 30% | 0.85 | |
| PC 30% | 0.80 | |
APPLICATION
- 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
Gas Alarm
By adopting non-sert, it can be used as it is for plastic and it becomes possible to use it repeatedly for maintenance
Pump
Adopted non-sert for fastening of motor part and tube part housing
Plasma TV stand
By adopting non-sert, costs are reduced without requiring inserts
Non-Sert for SANYO DENKI FAN ”SAN ACE”
Special Self Tapping Screws for SAN ACE are developed with the SANYO DENKI CO., Ltd.
These are recommended by the SANYO DENKI CO., Ltd.
Small Pan Head type and 120° Flat Head type.
Technical date as below.
| Size | 4 | 4.8 | 5 |
|---|---|---|---|
| Head Dia(dk) | 5.5 | 7.0 | 7.0 |
| Head Height(k) | 2 | 2.6 | 2.6 |
| Length | 12 | 12 | 12 |
| Recess No. | 2 | 2 | 2 |
| Part No. | SY-NS010412P11(3Cr) | SY-NS014812P15(3Cr) | SY-NS010512P15(3Cr) |
| SY-NS010412P11BK(Black 3Cr) | SY-NS014812P15BK(Black 3Cr) | SY-NS010512P15BK(Black 3Cr) |
| Size | 4 | 4.8 | 5 |
|---|---|---|---|
| Head Dia(dk) | 6.2 | 6.8 | 6.8 |
| Head Height(k) | MAX1.1 | MAX1.2 | MAX1.2 |
| Length | 12 | 12 | 12 |
| Recess No. | 2 | 2 | 2 |
| Part No. | SY-NS020412P11(3Cr) | SY-NS024812P15(3Cr) | SY-NS020512P15(3Cr) |
| SY-NS020412P11BK(Black 3Cr) | SY-NS024812P15BK(Black 3Cr) | SY-NS020512P15BK(Black 3Cr) |
4th Generation Thread Forming
Plastic and Engineering Plastic counterpart is much weaker than Steel Screw.
Therefore, to prevent the plastic breaking or cracking, SAIMA is strongly recommend 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.