Every part your build needs, from every supplier that stocks it.
Kinner Builder indexes mechanical, electrical and fluid-power components across the major distributors and marketplaces — then sends you straight to the shop that has the one you need. Screws to servos, anchors to accumulators.
- 114 categories
- 24,062 parts indexed
- 24,538 buy-links
- 177 suppliers
Most stocked right now
Fasteners & Hardware 18
Screws
Machine, wood, sheet metal and self-drilling screws in every head and drive.
208 parts
Bolts
Hex, carriage, structural, eye and U-bolts across grades and finishes.
201 parts
Nuts
Hex, nylon-insert, flange, wing, coupling and jam nuts.
201 parts
Washers
Flat, split lock, tooth, Belleville and structural washers.
194 parts
Anchors
Concrete, drywall, sleeve, wedge and chemical anchors.
219 parts
Rivets
Blind, solid, structural and semi-tubular rivets plus setting tools.
202 parts
Threaded Rod & Studs
All-thread, double-end studs and anchor rod in steel and stainless.
194 parts
Pins
Dowel, cotter, clevis, roll, spring and taper pins.
202 parts
Retaining Rings & Clips
External, internal, E-clips, spiral and push-on retainers.
207 parts
Threaded Inserts
Helical coil, key-locking, heat-set and press-in inserts.
205 parts
Hinges
Butt, piano, concealed, weld-on and heavy-duty industrial hinges.
211 parts
Latches & Catches
Compression, draw, slam, cam and magnetic latches.
203 parts
Handles & Knobs
Machine handles, pull handles, star knobs and adjustable levers.
186 parts
Brackets & Mounts
Angle, shelf, gusset, L-brackets and equipment mounting plates.
235 parts
Clamps & Clips
Hose, cable, beam, spring and P-clips for holding and routing.
199 parts
Casters & Wheels
Swivel, rigid, locking and leveling casters by load rating.
205 parts
Leveling Feet & Glides
Machine feet, vibration mounts, adjustable glides and pads.
227 parts
Magnets
Neodymium, ceramic, pot, and magnetic assemblies for holding and sensing.
219 partsPower Transmission 15
Ball Bearings
Deep groove, angular contact, thrust and self-aligning ball bearings.
283 parts
Roller Bearings
Tapered, cylindrical, spherical and needle roller bearings.
202 parts
Bushings & Plain Bearings
Bronze, sintered, PTFE-lined and polymer sleeve bearings.
254 parts
Mounted Bearing Units
Pillow block, flange and take-up bearing units.
215 parts
Belts
V-belts, timing belts, flat and ribbed belts by profile and pitch.
205 parts
Pulleys & Sheaves
Timing pulleys, V-sheaves, idlers and taper-lock bushings.
202 parts
Chain & Sprockets
Roller chain, conveyor chain, sprockets and connecting links.
208 parts
Gears
Spur, helical, bevel, worm and internal gears plus racks.
204 parts
Gearboxes & Speed Reducers
Worm, planetary, helical and right-angle reducers.
248 parts
Shaft Couplings
Jaw, beam, bellows, Oldham, rigid and disc couplings.
209 parts
Shafts & Shafting
Precision ground, keyed, hollow and hardened linear shafting.
203 parts
Shaft Collars & Hubs
One-piece, clamping, threaded collars and mounting hubs.
196 parts
Clutches & Brakes
Electromagnetic, mechanical, one-way and torque limiters.
272 parts
Universal Joints
Single and double U-joints, drive shafts and telescoping joints.
211 parts
Keys & Keystock
Square, rectangular, Woodruff keys and keystock bar.
206 partsMotion & Actuation 14
Linear Rails & Guides
Profile rail, round rail, dovetail and cam-roller guideways.
239 parts
Linear Bearings & Blocks
Ball bushings, carriage blocks and plain linear bearings.
213 parts
Ball Screws & Lead Screws
Rolled and ground ball screws, ACME lead screws and nuts.
210 parts
Linear Actuators
Electric, rod-style, rodless and belt-driven actuators.
207 parts
Servo Motors
AC and DC servos, integrated servos and matched drives.
202 parts
Stepper Motors
NEMA-frame steppers, geared steppers and driver modules.
207 parts
AC & DC Motors
Induction, brushed, brushless and gear motors by frame size.
200 parts
Motor Drives & Controllers
VFDs, servo amplifiers, ESCs and motion controllers.
215 parts
Springs
Compression, extension, torsion, die and constant-force springs.
247 parts
Gas Springs & Dampers
Gas struts, lockable springs, rotary and linear dampers.
227 parts
Cams & Cam Followers
Cam followers, track rollers, yoke rollers and cam plates.
201 parts
Gripsters & Lifters
Mechanical, vacuum, magnetic and robotic gripsters plus end-of-arm tooling.
224 parts
Rotary Stages & Tables
Indexing tables, rotary stages, slew rings and turntables.
220 parts
Conveyor Components
Rollers, idlers, belting, guides and conveyor frames.
201 partsFluid Power & Plumbing 15
Pneumatic Cylinders
Single and double-acting, compact, rodless and guided cylinders.
213 parts
Hydraulic Cylinders
Tie-rod, welded, telescopic and custom-stroke hydraulic rams.
227 parts
Pistons, Rods & Seals Kits
Piston assemblies, chrome rod, seal kits and rebuild parts.
199 parts
Pneumatic Valves
Solenoid, manual, check, flow-control and manifold valves.
201 parts
Hydraulic Valves
Directional, relief, check, proportional and cartridge valves.
198 parts
Plumbing Valves
Ball, gate, globe, butterfly and check valves for fluid lines.
202 parts
Pumps
Gear, centrifugal, diaphragm, vacuum and metering pumps.
190 parts
Compressors & Vacuum
Air compressors, vacuum generators, ejectors and pumps.
204 parts
Tubing
Polyurethane, nylon, PTFE, copper and stainless tubing by OD.
214 parts
Hose & Hose Assemblies
Hydraulic, air, water, chemical and suction hose plus crimped ends.
207 parts
Fittings & Connectors
Push-to-connect, compression, JIC, NPT, BSP and barbed fittings.
206 parts
Pipe & Pipe Fittings
Black, galvanized, stainless and PVC pipe with elbows and tees.
213 parts
Manifolds & Air Prep
FRLs, filters, regulators, lubricators and distribution manifolds.
201 parts
Accumulators & Reservoirs
Bladder, piston accumulators, tanks and hydraulic reservoirs.
202 parts
Flow & Pressure Instruments
Gauges, transducers, flow meters and pressure switches.
201 partsElectrical & Electronic 16
Wire & Cable
Hookup, multiconductor, shielded, THHN and high-flex cable.
203 parts
Electrical Connectors
Circular, rectangular, terminal, ring and quick-disconnect.
206 parts
Switches
Toggle, rocker, limit, push-button, rotary and selector switches.
202 parts
Relays & Contactors
Electromechanical, solid-state relays, contactors and sockets.
207 parts
Sensors
Proximity, photoelectric, ultrasonic, hall and limit sensors.
203 parts
Encoders & Feedback
Incremental, absolute, rotary and linear encoders plus resolvers.
191 parts
Power Supplies
DIN-rail, enclosed, open-frame and DC-DC converters.
224 parts
PLCs & Industrial Controls
PLCs, I/O modules, HMIs and industrial controllers.
202 parts
Circuit Protection
Fuses, breakers, holders, surge suppressors and disconnects.
202 parts
Enclosures & Cabinets
NEMA and IP-rated boxes, DIN racks, junction boxes and panels.
200 parts
Cable Management
Drag chain, glands, conduit, sleeving, ties and strain relief.
219 parts
Terminal Blocks & Blocks
DIN-rail terminals, barrier strips, distribution and grounding.
192 parts
Batteries & Charging
Li-ion, LiFePO4, SLA packs, chargers and battery management.
201 parts
Industrial Lighting
Machine lights, LED strips, work lamps and indicator lights.
213 parts
Heaters & Thermal Control
Cartridge, band, strip heaters, thermocouples and controllers.
202 parts
Fans & Cooling
Axial fans, blowers, filter fans, heat sinks and thermoelectric.
214 partsRaw Materials & Stock 12
Aluminum Stock
Plate, bar, sheet, angle and round in 6061, 7075 and 5052.
209 parts
Steel Stock
Hot and cold rolled bar, plate, sheet, angle and structural shapes.
212 parts
Stainless Stock
304, 316 and 17-4 bar, sheet, plate and tube.
231 parts
T-Slot & Extrusion
20mm, 40mm and imperial aluminum extrusion plus connectors.
212 parts
Tube & Structural Tube
Round, square and rectangular tube in steel, aluminum and stainless.
223 parts
Plastic Stock
Delrin, HDPE, UHMW, PTFE, nylon and polycarbonate sheet and rod.
235 parts
Brass, Copper & Bronze
Bar, sheet, tube and bushing stock in copper alloys.
214 parts
Composites & Laminates
Carbon fiber, fiberglass, G10, phenolic sheet and tube.
234 parts
Rubber & Foam Stock
Neoprene, EPDM, silicone, cork and closed-cell foam sheet.
205 parts
Wire Rope & Rigging
Cable, chain, shackles, turnbuckles, hooks and thimbles.
197 parts
Adhesives & Sealants
Threadlocker, epoxy, cyanoacrylate, RTV and anaerobic sealant.
232 parts
Lubricants & Greases
Bearing grease, way oil, dry film, anti-seize and penetrants.
202 partsSealing & Gasketing 6
O-Rings
Buna-N, Viton, silicone and EPDM O-rings by AS568 dash number.
210 parts
Oil & Shaft Seals
Rotary lip seals, V-rings and radial shaft seals.
206 parts
Gaskets
Cut, spiral wound, flange and custom sheet gaskets.
209 parts
Hydraulic & Pneumatic Seals
Rod, piston, wiper, backup rings and U-cups.
222 parts
Bellows, Boots & Way Covers
Protective bellows, rod boots and machine way covers.
225 parts
Sealing Tapes & Compounds
PTFE tape, pipe dope, anti-vibration and foam sealing tape.
231 partsTools & Shop Equipment 10
Hand Tools
Wrenches, drivers, pliers, hammers and precision hand tools.
201 parts
Power Tools
Drills, drivers, grinders, saws and rotary tools.
196 parts
Cutting Tools
End mills, drill bits, taps, dies, reamers and inserts.
199 parts
Abrasives
Sanding discs, flap wheels, cutoff wheels, belts and compounds.
202 parts
Measuring & Inspection
Calipers, micrometers, indicators, gauge blocks and squares.
243 parts
Workholding & Clamping
Vises, toe clamps, chucks, magnetic bases and fixture plates.
209 parts
Welding & Soldering
MIG, TIG, stick consumables, torches, filler and solder.
202 parts
3D Printing & CNC Supplies
Filament, nozzles, hotends, spindles, collets and CNC spares.
219 parts
Material Handling
Hoists, jacks, carts, lifting straps and load equipment.
205 parts
Storage & Organization
Bins, drawer cabinets, shelving, toolboxes and racks.
212 partsSafety & Facility 8
Personal Protective Equipment
Gloves, eye and hearing protection, respirators and hi-vis.
223 parts
Machine Safety
Light curtains, E-stops, safety relays, interlocks and guarding.
228 parts
Lockout / Tagout
Padlocks, breaker locks, hasps, tags and LOTO stations.
201 parts
Spill & Environmental
Absorbents, spill kits, containment pallets and drum handling.
206 parts
Signage & Labeling
Safety signs, pipe markers, floor tape and label printers.
201 parts
Janitorial & Cleanroom
Wipes, solvents, brushes, ESD supplies and cleanroom consumables.
193 parts
HVAC & Filtration
Air filters, ducting, blowers, dust collection and extraction.
196 parts
Tanks & Fluid Storage
Drums, IBC totes, jerry cans, funnels and dispensing.
209 partsHow Kinner Builder works
One flat catalogue
No six-level department tree. Every category sits on the front page, named the way engineers name things, with the synonyms you'd actually type folded into search.
Every supplier, side by side
The same bearing is listed under a different name at every shop. We match on manufacturer part number so one page shows you all of them, with last-seen prices.
We don't sell anything
There is no cart here. Every link goes to the supplier's own site, so you buy on their terms with their stock and their shipping.