粉室製作所 List of Products and Services

Are you having trouble with loose screws? Our company manufactures bolts that have a loosening prevention effect. Trademark name: "Motion Tight" These bolts prevent loosening due to the elastic effect of the screw threads after tightening. The effect of absorbing vibrations and shocks has been proven. There is no need to use conventional adhesives or similar products. 【Features】 - Loosening prevention effect - Cost reduction For more details, please feel free to contact our sales representative, Daito.

• bolt
• Contract manufacturing

Our company manufactures assembled products made of non-ferrous materials, such as nylon washers and rubber washers. We can procure washers in-house and manufacture them in specified sizes. If assembly by machine is difficult, we also offer manual assembly. Additionally, you can provide our manufactured screws and washers for assembly and sorting, which we can then deliver to you. 【Features】 ■ Realization of washer assembly by machine ■ Capability to procure and manufacture washers in specified sizes in-house ■ Manual assembly available if machine assembly is difficult ■ Assembled screws are sorted using image sorting machines and delivered to customers *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

Are you having trouble manually inserting washers? Our company can automatically insert rubber washers, nylon washers, polycarbonate washers, and more into finished screws in the subsequent process using machines. There are four benefits! -------------------------------------------------------------------------- Benefit 1: Cost Reduction 1 Reduction of labor costs for delivery to each household of subcontract workers. Benefit 2: Cost Reduction 2 Significant reduction in manual labor costs by using machine insertion. Benefit 3: Stable Supply Stable supply is possible due to machine insertion. Benefit 4: Stable Quality All finished products are inspected using an image sorting machine. --------------------------------------------------------------------------

• bolt
• Other assembly machines

Our company manufactures and sells completely custom-made screws using a technology called "Motion Tight." 【Motion Tight Technology】 ■ Each screw thread is equipped with a loosening prevention feature. ■ Although it is classified as a loosening prevention screw, it achieves effectiveness with the same workability as standard screws. ■ It provides loosening prevention power on its own, resulting in significant cost reductions. ■ It does not require the use of adhesives for loosening prevention, making it environmentally friendly. 【Do you have any of these concerns?】 - You want loosening prevention but cannot use adhesive products due to environmental issues. - You want loosening prevention but have cost concerns. *For more details, please download the PDF or feel free to contact us.

• bolt
• Contract manufacturing

The "Smile Screw" is a product born from the idea of designer Yuma Kano and the technology of our company, a screw specialist manufacturer. By changing the drive part from "+" and "-" to "：)(smile)," we add the joy of "discovering" to the original function of the screw. It is also effective for "prank prevention" as it requires a special screwdriver. 【Lineup】 ◎ Smile Screw 5-piece & screwdriver set ◎ Smile Screw 5-piece pack ◎ Smile Screw single box *For more details, please refer to the materials. Feel free to contact us as well.

• nut

The "Motion Tight" from Funshitsu Seisakusho significantly enhances the fastening performance of screws by increasing the elastic amount of the screw threads, making it a bolt that prevents loosening. Thanks to the elastic effect of the screw threads, Motion Tight absorbs vibrations and impacts, not only suppressing loosening but also providing high functions not found in conventional screws, such as preventing seizing. It improves work efficiency and promotes product lightweighting and energy saving. 【Features】 - Strong loosening prevention - Seizing prevention - Same workability as standard screws *For more details, please download the PDF or feel free to contact us.

• bolt
• Contract manufacturing

"Yakiress" is a "non-heat-treated steel material" for screws that achieves high tensile strength and hardness without heat treatment processes such as quenching and tempering. Even for long products, the absence of heat treatment reduces warping and bending, and by omitting spheroidizing annealing before cold forging and reducing the number of wire drawing processes, it contributes to cost reduction and shorter lead times through process simplification. [Features] ■ No heat treatment process required ■ Strength classification of 8.8 during screw manufacturing ■ Compatible with products that include washers ■ Achieved 841 MPa and 268 HV in samples (M6.0 bolts) *Currently, we are also developing sizes below 6 mm. Please contact us if you are interested.

• bolt
• Contract manufacturing

Our company is engaged in the manufacturing and sales of special screws through thread rolling processing. We contribute to cost reduction through form rolling utilizing plastic processing. Compared to conventional cutting processes, our method excels in productivity and allows for shorter lead times. Processing with thread rolling dies results in a good surface roughness for the products and makes precision management easier. 【Features】 ■ Skilled technicians are at your service ■ No cutting chips produced ■ High productivity, approximately 3 to 10 times that of conventional cutting processes ■ Low cost, about half that of conventional cutting processes *For more details, please refer to our materials. Feel free to contact us as well.

• bolt
• nut
• Contract manufacturing

Leave it to us for high-quality screws, from standard products to special items! We will comprehensively propose solutions for your concerns and challenges regarding screw design, materials, processing methods, heat treatment, and plating. ■ Production Achievements - Cross-recessed tapping screws - Triangular-shaped tapping screws - 2D3B products - Screws with integrated washers - Special recessed items *For more details, please download the PDF or feel free to contact us.

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• nut
• Contract manufacturing

■Special product ⇒ Change to standard tapping screw ■Spacer ⇒ Change to stepped screw

• bolt
• nut
• Contract manufacturing

■Patent product ⇒ Changed to standard tapping screws ■Cationic coating removal ⇒ No issues ■Initial torque, tightening break torque, loosening torque ⇒ Functionally, our product is slightly inferior

• bolt
• nut
• Contract manufacturing

■Change small screws to tapping ⇒ No need for female thread processing ■Change cross hole to K-lux ⇒ Increase in tightening torque ■Twisting strength: No breakage at 4.0 N·m ⇒ No problem

• bolt
• nut
• Contract manufacturing

■ "Improved tapered section of standard tapping screws" ⇒ No galling ■ Not a patented product, so it can be supplied ■ Since it is a standard product of our company, there are no concerns about delivery time

• bolt
• nut
• Contract manufacturing

■Change from small screws to tapping ⇒ No need for female thread processing ■Change from SW to SLW ⇒ No issues with return torque ■End user verification ⇒ No free rotation

• bolt
• nut
• Contract manufacturing

Are you troubled by the deformation and wear of screw threads? High-Ten screws can solve your problems! High-Ten screws from Konshitsu Seisakusho are made from low-carbon high-strength steel, making them less prone to deformation and wear compared to conventional steel screws. By improving workability due to the prevention of thread deformation, we achieve cost reduction! 【Benefits of Use】 - Improved workability due to resistance to deformation and wear - Cost reduction achieved through improved workability - Environmentally friendly as it leads to weight reduction and labor saving - Compatible with a wide range of applications including M3 and larger tapping screws, wood screws, etc. ● For a comparison with conventional steel screws, please refer to the catalog download.

• bolt

Typically, screws with adhesive coating specifications are expensive, leading to increased fastening costs. Additionally, adhesive-coated locking screws are single-use, right? The "Noji Lock" from Powder Room Manufacturing does not require adhesive processing or washer incorporation. It is a miracle screw that can be reused, resulting in significant cost savings. 【Features】 ● Significant cost reduction 　⇒ Noji Lock eliminates the need for adhesive processing, is resistant to loosening, and achieves substantial cost savings. ● Reusable ● Wide variety to accommodate various needs 　⇒ It accommodates a wide range from ultra-small camera screws to bolts. 　　☆ We can create custom head shapes and thread shapes upon request. *For detailed specifications such as diameter and pitch, please download the catalog and take a look.

• bolt

Funshitsu Seisakusho is a specialized manufacturer of screws, developing, manufacturing, and selling a wide variety of screws. From drawings and inquiries, we comprehensively propose optimal designs, materials, processing methods, heat treatments, and plating for screws, addressing any concerns or challenges related to them. 【Manufacturing Examples】 ■ Cross-recessed tapping screws ■ Triangular tapping screws ■ 2D3B products ■ Special items *For details such as equipment overview, please download and view the catalog.

• bolt
• nut
• Contract manufacturing