Screws TRIZ Cases

A reusable fastening clip uses dual locking mechanisms to maintain pin leg position for easy detachment and reuse.

Segmented grommet and pin components with flexible pawls maintain retention force after repeated removal, solving fastener lifespan issues.

Guide surfaces on support pillars center the clip during insertion, while empty spaces house deformed elastic legs to prevent chipping.

Hard woods resist pointed self-drilling screws; a flat chisel tip cuts across fibers, and a protruding centring point stabilizes the initial path.

Triangular guiding slopes on a screw shank channel debris into exhaust paths, preventing accumulation that causes jamming or workpiece cracking.

Segmented thread forms with a polygonal tapered end resolve single-material optimization limits by improving pull-out force across diverse materials.

Radially resilient spring webs shift catch noses to secure a locking part, eliminating complex manual compression during interconnection.

Dual sub cutting edges on a tapered positioning member sever fibers to reduce torque and prevent debris accumulation during drilling.

Varying rib heights resolve the contradiction between ease of insertion and explosive effect reduction in fastening operations.

A bolted hollow element design uses a radial bolt head and diametrically opposite wall fastening to enhance structural strength.