Hexagon bolt with seat insert
Hexagon bolt with embedded seat nut
This is a bolt that incorporates a washer used to prevent loosening and to avoid the sinking of the seat surface. The threads are roll-formed with the washer in place, ensuring that the washer does not come off the bolt. This eliminates the hassle of inserting the washer, prevents it from falling out, and reduces the risk of forgetting to include it, thereby improving work efficiency. The head is shaped into a hexagon through cold forging and trimming, and it is larger in size than a small screw. It is commonly used for mounting solar panel frames.
- Company：サカエ製鋲所
- Price：Other
