Products
NITTOSEIKO PRODUCTS
We manufacture precision screws, self-tapping screws and various other cold forged parts and we lead the industry with a great range of manufacturing technologies. We propose the products with the optimal conditions to solve all kinds of issues.
[Major products]
Precision screws, TAPTITE serias、Loose-proof screws、 Special cold forget parts、 Screw manufactring tools
A screw in which are formed square grooves at 4 points at equal intervals in the longitudinal direction on the outer circumference of the thread. As the screw is screwed in, the object plastic bites in the square grooves, providing a high loose-proof effect.
This screw prevents screw stripping at a shallow screwing depth and provides secure fastening.
The large pitch and high threads help increase the stripping torque, making it possible to use this screw for various plastic materials.
P-TITE-II is a twin-crest screw composed of high and sharp crest and low crest, with a triangle shaped thread section.
Enables ideal screw tapping and screwing thanks to a triangle section of threaded part, sharply improving working efficiency
Special screw for plastic work pieces. Quick screwing speed, enabling sharp improvement of working efficiency.
This screw was designed to provide strong fastening and high loose-proof effect for soft thermoplastic plastics.
MULTI-TITE is the self-tapping screw usable for fastening of both plastic and metal materials. The special thread ensures a wide proper torque range. It realized standardization of working conditions for various kinds of materials.
Reduces loosening after creep deformation. Phases of the screw, the clamped part, and the mated part are maintained by performing self-tapping on both the clamped and mated parts. Prevents screw loosening even when axial force is low. Steel collars and insert nuts can be eliminated, contributing to weight reduction. Steel collars and insert nuts can be, reducing fastening costs. No need for centering with positioning pins, etc., since self-tapping into both the clamped and mated parts allows the parts are positioned with reference to the screw.
TAPTITE 2000＜R＞ fasteners thread forming technology joins two unique concepts; the trilobular body and the creative curved thread design, advances fastening performance to a new level. The new generation of TAPTITE 2000＜R＞ fasteners provides excellent mechanical, assembly, and ergonomic characteristic which can not be surpassed by other technology.
It had considered impossible to fasten to a magnesium alloy by self-tapping screws due to generate the chip when thread forming. But MAGTITE fasteners has solved such a problem by its unique thread shape and wide pitch.
Enables ideal screw tapping and screwing thanks to a triangle section of threaded part, sharply improving working efficiency
Enables ideal screw tapping and screwing thanks to a triangle section of threaded part, sharply improving working efficiency
ねじ部表面を高硬度にすることにより、高張力鋼板ハイテン１００（９８０MPa）にもセルフタップ可能。耐遅れ破壊性能が良好です。
Increased maximum tightening torque, solving the problem of screw stripping with conventional sheet metal fastening. Pursued best possible efficiency and safety of work, realizing lightweight construction of products.
A screw in the shape of a triangle at the tip but circular at the body under the neck. Supports improvement of work efficiency and quality with smooth screw fastening and high tightening torque.
MULTI-TITE is the self-tapping screw usable for fastening of both plastic and metal materials. The special thread ensures a wide proper torque range. It realized standardization of working conditions for various kinds of materials.
圧造技術と締結技術（他部材の組込、樹脂成型、カシメ等）を融合させ、ねじ＋αの製品を提供、トータルコストダウンをサポート致します。
Thread is TAPTITE (triangular) shape. This thread is constructed with combined included angle of 30/60 deg., which gives an excellent vibration proof and shock resistance by improving the lock action due to external thread interfering into internal thread, when this screw is fastened into tapped internal thread.
The increased number of contact points provides a higher loose-proof effect.Because it is well considered about torque which relates interfering with inner diameter of female thread, higher usability can be provided even when the internal thread shapes vary.
This is a screw coated with a microcapsule in which is sealed an epoxy-based adhesive. When the screw is screwed into a female thread, the capsule is destroyed, and the adhesive oozes out, to provide a high fastening force with hardening.
Nylon is spread on thread surfaces. When Softlok is screwed into the tapped internal threads or nuts, a higher friction resistance is generated between the gap between screws and female threads because of the elasticity of the nylon, thereby producing a great loose-proof effect.
Screw with a nylon press fit in the cut groove provided in the screw thread. The nylon is deformed as the screw is screwed in, producing a large loose-proof effect thanks to a high frictional torque due to its wedge effect.
アルミ製のボルト、セルフタッピンねじ、冷間圧造部品など様々な製品により締結による軽量化に貢献。
鋼製ボルトと同等の引張強さを実現し高強度アルミボルト。従来の鋼製ボルトと比較し3分の2の重量削減を実現し、製品軽量化を支援いたします。
This is the product for the special driving parts that have critical points to be kept inaccessible to users for protecting product functions or for the sake of safety and thus require the screws that cannot be loosened by commercially available bits.
ドライバビットの挿入性を高めた特殊駆動部です。駆動部に設けた傾斜がビットの入りを助け、挿入時に発生する作業トラブルを低減します。作業性の向上、締結品質の向上を実現します。
十字穴上部に段形状を設けることにより、締結時に発生する塗装剥がれを防止する駆動部です。塗装剥がれによる補修（締め直し）が不要になります。
No concentration of stress because of the structure from 6 lobes, solving the problem of damage to products due to collapse of drive hole and come-out (floating of bit from the recess) during scrwe fastening. Realizes accurate fastening, with effective transmission of torque.
No concentration of stress because of the structure from 7 lobes, solving the problem of damage to products due to collapse of drive hole and come-out (floating of bit from the recess) during scrwe fastening. Realizes accurate fastening, with effective transmission of torque.
This is the product for the special driving parts that have critical points to be kept inaccessible to users for protecting product functions or for the sake of safety and thus require the screws that cannot be loosened by commercially available bits.
This is a special driving part to be used at critical points where screws should not be loosened by users for protecting the product functions or for the sake of safety.
Enables flat fastening that makes the fastened surface as flat as possible, and strongly supports production of thinner and lighter products.
Available in rich color variations such as fluorescent color, hologram type, light accumulation type (stores light and emits faint light in dark places).
This is a self-clinching stud of pressurized mounting system, to take the place of the conventional clinching stud and welded stud. Realizes total cost reduction and sharply improves productivity.
Achieves saving of labor and assembling cost, because of pre-assembled washer. The combination of screw and washer is available as required depending on the purpose of use. Also suitable for automated fastening.
We propose a new form of press-fit self-clinching studs. The "Clinching Stud Bolt" realizes "suppression of burr", "reduction of warpage", and "improvement of anti-warping strength" by using a ring shape for the anti-warping projection.
ねじ全体を当社独自の摩擦係数安定剤でコーティングしたねじ。摩擦係数を安定させることが出来るため締付けトルクに対する発生軸力が安定します。締付けトルクを管理することで狙い通りの軸力を確保し、締結したねじのゆるみや締結時にねじが破断するといった問題を解決します。
ねじ先端部に高周波焼入れを行ったねじ。SPCC相当材に対してハイテンションボルトによるセルフタップが可能。
浸炭焼入れを行ったセルフタッピンねじに、さらに、先端部のみ高周波焼入れを行ったねじ。「ハイテン150」やステンレス板などの高強度材にも安定したセルフタップが可能。
This is a spring pin of strong elasticity realized by winding an elastic sheet metal in the shape of a whirl and reducing its size at both ends to facilitate press fitting.
Improves efficiency of caulking work, and promotes reduction of assembling cost. Realizes highly reliable fastening on a variety of materials, without fear of incomplete caulking or damage to object material.
Special grade of POM (polyacetal) is used as material. When conventional steel rivets are used for a plastic product, it does need to remove rivets before disposal. But this one dosen't require such classification.
Inner-Fit helps to securely assemble printed circuit boards and other components to the chassis of a flat panel display. Because the head of Innerfit is pressed into a chasis entirely, the chassis surface is kept as flat and smooth.
Has excellent quality and durability by combining the essence of precision working technology and fastening technology of our own, and sharply improves fastening work.
Slimsert is the ultimate nut to be used in a narrow area. It is an environment-friendly product that facilitates separate disposal of the plastic and nut.
AKROSEによって接合した部品に適切な熱処理を施すことで、従来の拡散接合の課題を解決しながら、原子レベルでの密着性を実現する新技術です。
Available with high strength materials such as engineering plastic.Prevents plastic cracks.
Unique to NITTOSEIKO, AKROSE is the technology of tightly joining dissimilar materials by pressing them together after undergoing a cold-heading process.
This is a grooved fastener having 3 V-shaped grooves formed on the outer circumferential face of the pin at equal intervals in parallel in the longitudinal direction.
CP-GRIP allows use of self-tapping scrwes for such application to adhere metal dusts in its specially coating.It helps cost saving to make better productivity.
It has a flanged head with cup shape which has same function with spring loch washer. By making the flange in the shape of a cup, it becomes possible to perform fastening at high torque and obtain an excellent loose-proof effect.
Height of head reduced to as small as 0.2 mm, 77% smaller compared with conventional pan head. Enables flat fastening which brings the fastening face close to a plane, and supports reduction of volume and weight.
Cross recesses were often crushed during fastening with bits and resulted in poor working efficiency. Once a cross recess is crushed, the workpiece must be modified or scrapped. These problems can be solved by this new recess.
塑性変形しないことからインサートナットやめねじ加工などが必要とされていましたがセルフタップによる締結を実現。トータルコストダウン、軽量化に貢献。
This is an anti-looseness screw that interferes with a special thread profile on the flank surface, which is relatively stable (little variation) among the components of a female screw, to provide a stable anti-looseness effect that is not easily affected by the accuracy of the female screw.
To change manufacturing method of complicated parts from conventional cutting or combination several parts to cold heading method. Enables sharp cost reduction and increases product variations at the same time, to meet a variety of needs from customers.
If normal self-tapping screws are used with a soft metal such as ADC, the screws are more likely to cause sticking with mated hole because of galling. Moreover, soft metal is more likely to cause the internal threads to deform or cause screws to loosen because of varying thermal expansion coefficients. To address such fastening problems, we have developed ALUMITITE.