Manufacturer: NITTOSEIKO CO., LTD.
Model: Cup Bolt

Features

The screw, spring washer, and flat washer are integrated, contributing to weight reduction and cost reduction. The cup-shaped flange ensures that the flange periphery is firmly in contact with the ground, providing a high level of locking effect.
Replaces washer-integrated bolts for weight reduction and cost reduction.
The cup shape provides the same or better anti-loosening effect as spring washers and flat washers.
Major applications
Where you want to reduce costs by using washers for fastening.
Where you need high tightening force and are concerned about loosening.
Automobiles, copiers, office equipment, etc.