Nuts TRIZ Cases

Unequal bolt and nut pitches with a split nut and spring enable strong fastening and easier nut removal after paint or thread deformation.

Rotating the cage nut into a square opening enables front-side mounting, secure tightening, and reduced axial play in thin walls.

A threaded rod, bushing, and adjusting nut let one lifting bracket fit different fastener lengths and hole depths while preventing misuse and damage.

A stepped blind hole displaces material to form a shaft-head undercut in cold extrusion while preserving a flat end face and friction control.

Two foldable threaded bodies clamp around a screw, cutting long threading time while enabling quick nut placement and easy removal.

A rotary tool displaces material in shallow blind holes to clinch fasteners in very thin sheets while avoiding panel blemishes.

A ramp-and-detent removable weight locks in under one turn, shifting mass outward to raise MOI without delamination or corrosion.

Opposing thread directions and a resistance-fit second screw stop fastener loosening under vibration while keeping assembly durable.

An elastic washer locks the ring and nut in rotation while preserving enough angular travel for secure locking and easier disassembly under vibration.

A washer-and-hex-nut style base hides the fastener head, giving antique hardware aesthetics with easy installation and structural use.

A tapered, spring-reset expansion mechanism secures a horizontal plate between vertical plates while allowing easy screwdriver removal and reuse.

An adapter bridges small sensor hex sizes to standard tools, enabling compact threaded installation with optional locking features.

A ball-lock pintle fastener speeds secure CNC fixture and workpiece changes while preserving precise positioning across different parts.

A two-part fastener uses rotation-preventing and position-limiting features to speed repeated assembly while allowing secure position adjustment.

A rotating cap with resilient arms and cam surfaces limits tightening torque, preventing overtightening while allowing easy loosening.

A conical funnel and movable jaw segments let one fastener self-align and lock despite horizontal, vertical, and angular tolerances.

An outer tube rotates while the inner tube and hose stay still, preventing winding, sticking, and connection damage during assembly.

Visual markings and a through-hole show correct nut-ring locking while segmented threaded engagement widens rotation and eases assembly.

A spring-biased ratchet built into threaded components resists vibration loosening without extra assembly or visual confirmation.

Liquefied thermoplastic pierces the outer layer and locks into the interlining, creating fast, reliable connector anchoring in lightweight panels.

Opposing threads, tuned clearances, and a visual lock mark let the nut-ring assembly resist vibration while still allowing easier mounting and removal.

Embedded screws in a resilient holder block cut retrieval time, keep alignment for driving, and reduce finger injuries during insertion.

A translating lock barrier keeps mating flanges engaged for secure orientation, then releases them for quick rotational adjustment.

A split pull-rod and clamping setup applies high press-in force across varied workpiece geometries without damaging threads.

A localized thread enlargement creates progressive friction and a void for displaced material, securing threaded rebar without epoxy or lock nuts.

A spring inside the high nut guides misaligned long bolts into mesh and adds anti-loosening lock without double-nut axial movement.

Variable thread pitch creates self-locking screws or nuts that resist loosening at high temperature without locknuts, jamming, or breakage.

Radial serrations and Belleville washer flattening create a debris-tolerant torque transfer path that resists slippage across varying nut and bolt sizes.

Controlled pearlite and carbonitride microstructures shorten spheroidizing heat treatment while preserving wire rod strength and ductility.

Symmetric cap openings align with a screw radial hole for pin locking without re-tightening, helping fasteners resist vibration loosening.

Embedded hard particles create staged friction on metallic anchor surfaces, boosting load capacity while reducing seizing and galling.

A bore-engaging retaining cage keeps the threaded plate centered and captive in a profile rail without weakening the thread or load capacity.

A malleable retention sleeve locks the steering stop fastener in place to improve preload retention, simplify assembly, and reduce field failures.

A sliding wear pad mount with a bolted locking member prevents loosening under abrasive stress and simplifies replacement on wear panels.

A dual-motor shaft and cam control sequence improves blind rivet nut threading, setting, and unthreading accuracy.

A pivoting handle lets this fastener be turned by hand or tool, reducing installation hassle while preserving dense interface card layouts.

Friction heat expands the boss material into honeycomb voids, creating undercuts that prevent detachment in hollow chamber components.

An asymmetric cup steers the screw tip to one side, lowering insertion torque and improving anchorage in lightweight walls.

A bonded oversizing structure lets fasteners fit enlarged close-tolerance holes while preserving load transfer and avoiding costly redrilling.

Recesses in the nut body cut weight while a thread carrier shell and plastic thread deformation preserve strength and clamping torque.

Segmented bearing and non-bearing surfaces let one fastener fit standard tools, prevent misuse, and cut material and production cost.

An uninterrupted variable-width rib on a threaded rebar sleeve improves concrete adhesion and tensile resistance while preserving steel and geometry flexibility.

Lateral pilasters on the panel edge mechanically guide a U-shaped nut clamp into position, preventing misalignment and costly rework.

A threaded holding plate and dowel pins secure pass-through torque tools on protruding studs for safer, faster vertical and inverted fastening.

An integrated threaded locator bushing improves fixture plate alignment while avoiding surface and hole damage during installation and removal.

A hard core with a softer threaded outer element keeps horseshoe stud holes clean, resists deformation, and allows easier stud fitting.

Acrylic thermoplastic dampening layers help fasteners resist loosening under vibration while remaining reusable after unfastening.

Alternating thread projections shift wood longitudinally instead of radially, lowering tightening torque while improving pull-out and release behavior.

Boron-alloyed hardened steel enables direct spot welding of nut plates to car bodies, removing weld rivets while cutting assembly cost and weight.

A shank-and-nut assembly with self-locking threads enables long tie bolts to be made on standard machines while preserving preload and fatigue resistance.