Product list

The POP one-sided fastening method makes for fast, high-precision assembly lines. It enables quick assembly on assembly lines with low-skill workers, helping to reduce costs compared to welding and tapping screws. Long operating hours are possible with POP light-weight fastening tools and they are suitable for automating assembly lines. This environmentally-friendly fastening method does not generate sparks.

POP fastening tools can fasten POP Rivets and HUCK Fasteners easily. Choose a suitable tool type from manually operated, electric, battery-operated or air-hydraulic depending on the situation.

Bolts can be fixed easily in plastic and metal workpieces unilaterally with air hydraulic hand tools. Insert bolts and weld bolts can be replaced with HB Bolts.

POP fastening tools can fasten POP Nuts and POP insert easily. Choose a suitable tool type from manually operated, electric, air pressure and air-hydraulic tools depending on your situation.

Based on customer's specifications, NPR designs and manufactures fastening systems from jigs that hold things in place vertically to fully automated assembly lines. NPR approaches fastening as a system and offers a total fastening system from fasteners to auto-fastening systems.

Since the workpieces are not pre-pierced, it is possible to join pieces in arbitrary positions. Pieces made from dissimilar metals, plastics and similar metals that are unsuitable for welding can all be assembled. Galvanized and painted steel pieces can be fastened together and no processes such as welding are needed after. The process produces no sparks and there is little noise or vibration.

This electric system automatically feeds rivets to the tool using a feeder. Position-controlled setting of rivets driven with a servo motor enables stable riveting. A monitor screen diplays pressure curves and displacement for judging riveting results.

Compact, easy-to-use operation hydraulic SPR equipment. The DAS type spools rivets loaded on the belt feeds automatically with a cylinder system. The DAF type automatically feeds rivets to the tool using a feeder equipped with jig or robot for automated assembly lines.

Several plastic materials are available depending on the application. Plastic clips can be designed and manufactured based on customers' specifications.

Sun visor holders, side air-bags and assist grips can be attached on the assembly line with one push.

Unilateral welding studs are indispensable for the automobile assembly.

In order to increase the welding strength, weld the edge of the ring flange to the ring stud. Since the welding part is small, the ring stud can be attached to thin workpieces.

Metal brackets can be quickly attached unilaterally with a drawn arc welding system.

Welding stands are not necessary because of the bracket's special shape, so Weldfast helps to lighten the product.

With the DCE, drawn arc welding system, highly stable quality welding becomes possible.

Equipment for welding studs onto workpieces unilaterally. Manual, automatic feed and robot install types are available. DCE is a fully-automatic welding system, consisting of the control unit, the feeder and the welding gun. The control unit monitors all the welding conditions with a digital signal processor. A linear motor is adapted for the welding gun.

Joints are strong because the knurl anchors workpieces after attachment. Kalei Nuts can be installed not only in steel, but also aluminum and stainless steel unsuitable for welding.

Spacers for attaching to metal pieces from the surface as a spacer for printed circuit boards. Because of POP's original shape, high strength can be obtained.

Have high anti-pull resistance because they are attached to metal workpieces from the backside with flange part. Spacer height is from 4.0mm to 12.0mm by 1.0mm and 14.0mm is also available.

Can be fully embedded in the back or side of workpiece, so it is suitable for products in which space is limited. Because the nut's hexagonal section is pressed into the workpiece and the metal sinks into the nut groove, high torque and anti-pull out resistance are possible.

Well Nuts are rubber blind nuts which can be fastened unilaterally with anti-vibration, isolating conductivity and seal effect. They can easily be unilaterally installed with a screwdriver. They are especially effective for noise reduction of the fan unit because of their vibration reduction effect.

Jack Nuts can be installed into not only metal pieces, but also fragile pieces made of plastic and glass since 3-4 legs of Jack Nuts open according to the shape to securely hold the workpieces when fastening. The grip range of Jack Nuts is wider compared to POP Nuts.

Heli-Coil is the screw thread insert, an elastic type of spring coil. When inserted into the tap hole of the workpiece, screw threads are reinforced and strengthened.