Nuts TRIZ Cases

A tension feeder pulls collated fasteners through a replaceable guide to prevent strip tangling, misfeeds, and jamming during installation.

An integrally molded plastic fastener uses a frangible movable nut and stop members to secure panels of different thicknesses with lower weight and complexity.

A split nut with hinged threaded blocks and elastic claws speeds screw-rod fastening while keeping a secure connection for tight installations.

An elastic under-head coating seals self-tapping screw joints without separate washers, helping retain preload and simplify assembly.

Flow forming shapes the conical tip, thread-like contour, and tool interface in one tube-based process, cutting welding and production effort.

A frustoconical protrusion relieves stress at the eccentric bolt base, preventing breakage while preserving vibration-resistant locking.

A threaded compensating element and non-circular connector replace spring-based parts to deliver precise tolerance compensation and simpler assembly.

A frustoconical plug is rotationally welded into plastic sandwich panels to create a tear-resistant anchor for self-tapping screws.

Cast-in indicators on engine castings show the correct fastener type at each hole, preventing assembly errors without wear-prone marks.

A segmented lock ring with asymmetric protrusions prevents nut rotation under axial loads, keeping landing gear pin joints securely coupled.

Multiple receptacle sizes and positioning tabs let one channel strut fastener block hold SAE or metric hardware without shifting.

Differential resilient tabs let one push-on fastener grip studs of varying or non-uniform diameters with lower installation force and less stripping.

A legged retainer structure uses dimples and shoulders to cut installation force, improve panel-aperture centering, and support faster production.

Excess thread is contained inside a matched male-female fastener pair, creating a secure joint without exposed threads or extra size variants.

An electric drive moves a flexible push element through a curved guide path to dispense individual fasteners without noisy air hoses.

Axial cutting teeth and a fastener-driven split tip let a wallboard anchor bore without pre-drilling and improve pull-out resistance.

A pliable slotted nut elastically fits different fastener sizes and shapes, cutting replacement time, cost, and inventory burden.

A connecting body lets a self-tapping screw form threads in a rib area, improving hold strength while avoiding sink marks and shiny spots.

Offset cam geometry and tapered slip-fit surfaces let one clamp rotate freely, then lock workpieces laterally and downward on a worktable.

Concentric winding and die curing create a spiral fiber layer that strengthens lightweight CFRP resin bolts against tensile and bending loads.

Paired loop holders and a terminal support stiffen the strip, keeping fasteners aligned for consistent feeding in power tools.

A two-step clinching sequence deepens plate extension into the nut cavity to raise fastening strength without deforming or breaking thin stacked workpieces.

Nested sheet-metal sleeves separate weldability from groove hardness, cutting ball screw nut production effort and cost.

Ribbed and projected adapter geometry creates a stable anchoring volume in honeycomb lightweight panels for stronger fastening without adding panel weight.

Curved punch and lug surfaces reduce panel elongation demand, improving clinch strength and torque-out in lightweight metal panels.

A drive sleeve redirects clamping load away from collet legs while guiding clamping feet for better alignment and shorter grip length.

Pressed collar threading joins the sleeve to the clamp body without welding, avoiding corrosion, insert heat damage, and sleeve loosening.

A movable insulating sheath keeps the blind fastener isolated from composite structures during installation, preventing lightning arcing near fuel tanks.

A threaded mandrel with conical and cylindrical sections aligns multiple components precisely and unscrews safely after assembly.

A conical ring collar with a 0.45-0.75 thickness ratio avoids radial upsetting, improving securing thread formation and surface integrity.

An elliptical locking collar and bi-hex drive surface preserve locking torque over repeated cycles without increasing nut height or sacrificing tightening torque.

A two-step annular collar forming process creates a media-tight press-fit cap nut while protecting anti-rotation elements during assembly.

A single locking assembly secures the quick-release plate and shaft arm together, cutting gimbal balance setup time and installation complexity.

Inclined protrusions pull soft metal inward during caulking, reducing burrs and edge deformation while preserving torque and pull-off load.

Flexible engagement members cut insertion force while maintaining strong pull-off resistance, enabling reusable corrosion-protective fastening.

Ratchet-like spring tongues let a threaded bolt snap into place for faster alignment, anti-twist stability, and secure component anchoring.

Optimized thread length and local wall thickness cut blind rivet screw mass while preserving tool engagement and load capacity.

A single bolt-and-pin attachment joins frame modules and mounts display modules, cutting part variety and speeding video wall assembly.

Crumple zones and resilient arms let a spring nut snap into reentrant lips, resist axial loading, and allow quick non-rotational installation.

A rapid-curing aluminate cement fills the annular gap around thread-forming screws in concrete to boost bond strength and fire resistance.

A protective stop surround and locking nose keep a tolerance compensating fastener from unscrewing under lateral transport impacts.

A filler pin and groove-locking bolt-nut assembly prevents joint loosening in tight spaces and retrofits where washers or castellated nuts fall short.

Electrical resistance heating softens aluminum so a steel fastener can pierce it and weld to steel with lower force, faster cycles, and less corrosion.

A split corpus-and-dentate structure fits different bodies and materials, enabling modular gear transmission with reinforcement and lower cost.

An internal locking projection indexes the actuator knob to align the beveled pin edge, enabling reliable directional locking and release.

A spring washer between dual-threaded double nuts preserves axial force under vibration, preventing loosening and reducing inspection needs.

A cap screw and conical spacer mechanically retain a carbide valve plug tip, avoiding brazing stress risers and easing maintenance.

A reduced-area asymmetric thread profile preserves standardized compatibility while preventing wrong module connections under high pressure.

A threaded shank, actuator, and retainer enable quick tailgate removal without tools while maintaining secure, vibration-resistant engagement.

Selective hardening raises rolling-profile hardness in a sheet-steel ball screw nut while keeping the outer sleeve weldable for flange attachment.