| Subject | English | Spanish |
| ichtyol. | Atlantic thread herring | Machuelo hebra atlántico Opisthonema oglinum |
| nat.res., fish.farm. | Atlantic thread herring | machuelo hebra atlántico (Opisthonema oglinum) |
| med. | bougienage with thread without end | dilatación por bujía con hilo sin fin |
| life.sc. | box and pin thread gauge | calibro de rosca macho y hembra |
| meas.inst. | chaser type thread snap gage | calibre de roscas con pieza fija de perfil de la rosca |
| meas.inst. | chaser type thread snap gauge | calibre de roscas con pieza fija de perfil de la rosca |
| gen. | coir thread and yarn | hilos de coco |
| gen. | cotton thread and yarn | hilos de algodón |
| transp., mech.eng. | cross head full thread screw | tornillo roscado de cabeza cruzada |
| gen. | darning thread and yarn | hilos para zurcir |
| fish.farm. | deep-body thread herring | arenque de hebra (Opisthonema libertate) |
| fish.farm. | deep-body thread herring | machuelo del Pacífico (Opisthonema libertate) |
| industr., construct., chem. | double-thread finish | boca con rosca de doble entrada |
| industr., construct., chem. | double-thread ring | boca con rosca de doble entrada |
| transp., mech.eng. | dry thread torque | par de apriete |
| pack. | effective thread diameter | diámetro efectivo de la rosca |
| pack. | effective thread diameter | diámetro efectivo del filete |
| gen. | elastic thread and yarn for textile use | hilos elásticos para uso textil |
| gen. | embroidery thread and yarn | hilos para bordar |
| transp. | female-thread chaser | peine para roscar |
| gen. | fiberglass thread for textile use | hilos de cristal para uso textil |
| gen. | fibreglass thread for textile use | hilos de cristal para uso textil |
| industr., construct. | garnetted thread waste | desperdicios sacados después de la operación de garnett |
| nat.sc., agric. | golden thread-fin bream | nemíptero (Nemipterus virgatus) |
| transp., mech.eng. | ground thread tap | macho rectificado |
| gen. | hemp thread and yarn | hilos de cáñamo |
| textile | inter-thread capsule | cápsula interhilo |
| meas.inst. | internal limit thread gage | galga límite de roscas |
| meas.inst. | internal limit thread gauge | galga límite de roscas |
| pack. | interrupted thread lock | cierre de bayoneta |
| gen. | jute thread and yarn | hilos de yute |
| gen. | linen thread and yarn | hilos de lino |
| transp., mech.eng. | lubricated thread torque | par de apriete con lubrificante |
| mech.eng. | machine for thread cutting using grinding wheels | máquina de filetear con muela |
| ichtyol. | middling thread herring | machuelo hebra mediana Opisthonema medirastre |
| fish.farm. | Pacific thread herring | machuelo del Pacífico (Opisthonema libertate) |
| ichtyol. | Pacific thread herring | Machuelo hebra pinchagua Opisthonema libertate |
| fish.farm. | Pacific thread herring | arenque de hebra (Opisthonema libertate) |
| auto. | pipe thread fitting | acoplación roscada tipo tubo |
| gen. | rayon thread and yarn | hilos de rayón seda artificial |
| pack. | reel or spool of thread or of yarn | bobinado de hebra |
| pack. | reel or spool of thread or of yarn | bobinado de hilo |
| pack. | reel or spool of thread or of yarn | bobina de hilo |
| meas.inst. | roll thread snap gage | calibre hembra de roscas con rodillos de medición |
| meas.inst. | roll thread snap gauge | calibre hembra de roscas con rodillos de medición |
| pack. | root or effective thread diameter | diámetro del filete |
| pack. | root or effective thread diameter | diámetro del ribete |
| gen. | rubber thread for textile use | hilos de caucho para uso textil |
| mech.eng. | to ruin the thread by turning | forzar en el giro de apriete |
| gen. | screw-thread cutters hand tools | terrajas herramientas |
| mech.eng. | screw thread of Whitworth form | rosca Whitworth |
| mech.eng. | screw thread system | sistema de roscado |
| immigr., tech. | security thread bearing micro print | hilo de seguridad microimpreso |
| immigr., tech. | security thread bearing small print | hilo de seguridad miniimpreso |
| gen. | sewing thread and yarn | hilos para coser |
| textile | sewing thread bobbin | bobina de hilo de coser |
| gen. | silk thread and yarn | hilos de seda |
| textile | single thread blindstitch | punto invisible con hilo sencillo |
| textile | single thread chain stitch | punto de cadeneta con hilo a un cabo |
| mach. | single thread screw | tornillo de rosca simple |
| ichtyol. | slender thread herring | machuelo hebra crinudo Opisthonema bulleri |
| gen. | spun thread and yarn | hilados |
| transp. | to strip the thread of a screw | forzar la rosca |
| mech.eng. | to strip the thread off a screw | forzar en el giro de apriete |
| industr., construct. | textile yarn combined with metal thread or strip | hilado textil retorcido con hilos metálicos |
| transp., met. | theoretical thread height | altura teórica de rosca |
| chem.fib. | thread advancing reel | torno de hilado y tratamiento posterior en continuo |
| agric. | thread binding | atado |
| industr., construct. | thread brake | tensor de hilo |
| industr., construct. | thread brake | freno de hilo |
| tech., industr., construct. | thread break stop motion | parahilos |
| textile | thread break stop-motion | dispositivo de paro por rotura |
| industr., construct. | thread breakage | rotura de hilo |
| industr., construct. | thread carrier | dispositivo guiahilos |
| tech. | thread chaser | peine de roscar |
| industr., construct. | thread coil | ovillo |
| earth.sc., el. | thread coiling | bobinado de hilo |
| comp., MS | thread component | componente subproceso (An SMS/Configuration Manager program that runs as a thread of the SMS Executive service component. A thread component can be started and stopped through the SMS/Configuration Manager Service Manager) |
| pack. | thread-core diameter | diámetro del núcleo |
| knit.goods | thread count | contro de los hilos |
| comp., MS | Thread Count | número de subprocesos (In Task Manager, the number of threads running in a process) |
| textile | thread count | densidad en hilos |
| knit.goods | thread count | número del hilado |
| gen. | thread count | densidad de hilos |
| earth.sc. | thread counter | cuentahilos |
| industr., construct. | thread-counter | cuentahilos |
| industr., construct. | thread-counter | lente de tejedor |
| gen. | thread counters | cuenta-hilos |
| textile | thread course | decurso del hilo |
| textile | thread cutter | cortahilo |
| med. | thread cutter | corta-hilos |
| transp., mech.eng. | thread cutting die | roscador de luneta |
| mech.eng. | thread-cutting screw | tornillo de rosca cortante |
| tech. | thread-cutting screw | tornillo cortarroscas |
| pack. | thread diameter | diámetro exterior |
| pack. | thread diameter | diámetro nominal |
| textile | thread end | cabo del hilo |
| industr., construct. | thread extractor for carpets | sacar los hilos de las alfombras |
| tech., industr., construct. | thread eye | ojo de la aguja |
| fish.farm. | thread-fin breams | nemiptéridos (Nemipteridae) |
| mater.sc. | thread fit | tolerancia de la rosca |
| pack. | thread fit | tolerancia del fileteado о roscado |
| chem. | thread-forming insert | anillo roscado interiormente para moldear roscas externas |
| transp., mech.eng. | thread friction torque | par residual |
| meas.inst. | thread gage | galga para roscas |
| IT, transp. | thread gage | calibrador de roscas |
| meas.inst. | thread gage | plaptilla para tornillos |
| meas.inst. | thread gage | calibre de alambre |
| el., meas.inst. | thread galvanometer | galvanómetro de cuerda |
| meas.inst. | thread gauge | calibre de alambre |
| IT, transp. | thread gauge | calibrador de roscas |
| meas.inst. | thread gauge | plaptilla para tornillos |
| meas.inst. | thread gauge | galga para roscas |
| tech. | thread gauge | calibre de roscado |
| med. | thread granules | bioplasto |
| med. | thread granules | bióforo |
| med. | thread granules | condrioconto |
| med. | thread granules | condriomita |
| med. | thread granules | condriosoma |
| med. | thread granules | gránulos de Altmann |
| med. | thread granules | plastosoma |
| med. | thread granules | plastocondria |
| med. | thread granules | condrioma |
| med. | thread granules | mitocondria |
| mech.eng. | thread grinding machine | rectificadora de roscas |
| textile | thread guide | conductor del hilo |
| textile | thread guide | guiahilo |
| industr., construct. | thread guide | dispositivo guiahilos |
| textile | thread guide | cola de cerdoguìa del hilo |
| med. | thread guide | guía de inserción |
| tech., industr., construct. | thread guide board | tablero guiahilos |
| tech., industr., construct. | thread guide carrier | porta guía-hilo |
| industr., construct. | thread-guiding plate | platina guiahilos |
| ichtyol. | thread herrings nei | machuelos nep Opisthonema spp |
| fish.farm. | thread herrings | falsos arenques (Opisthonema spp.) |
| transp., mech.eng. | thread insert | casquillo roscado intercalado |
| mech.eng. | thread insert | metido a rosca |
| mech.eng. | thread insert | inserto roscado |
| tech. | thread insert | modificador de filete |
| tech. | thread insert | casquillo roscado |
| industr., construct. | thread interlacing | ligamento |
| industr., construct. | thread irregularity | sobrespesor de un hilo |
| pack. | thread jar | envase de vidrio |
| pack. | thread jar | con boca a rosca |
| mater.sc., chem. | thread jar | envase de vidrio, con boca de rosca |
| mater.sc., chem. | thread jar | tarro con tapa de rosca |
| mater.sc., chem. | thread jar | tarro con cuello de rosca |
| pack. | thread jar | tarro con tapa a rosca |
| nat.sc., agric. | thread laver | ova marina (Enteromorpha compressa) |
| bot. | thread laver | ova marina Enteromorpha compressa |
| earth.sc., transp. | thread lever | palanca de bobinado de película |
| hobby, transp. | thread marker | hilo de identificación |
| tech. | thread miller | fresadora de roscas |
| mech.eng. | thread milling machine | máquina de roscar con fresa |
| industr., construct. | thread of glass fibre | hilado de fibras de vidrio |
| med. | thread of Golgi-Rezzonico | aparato de Golgi y Rezzonico |
| gen. | thread of metal for embroidery | canutillos |
| mech.eng. | thread of steep lead angle | roscado de ángulo grande |
| auto. | thread pitch | espacio de la rosca |
| earth.sc. | thread plug gage | calibre tampón de rosca |
| tech. | thread relief notch | ranura de desahogo de la rosca |
| meas.inst. | thread-ring gage | calibre anular de alambre |
| earth.sc. | thread ring gage | calibre de anillo de rosca |
| meas.inst. | thread-ring gauge | calibre anular de alambre |
| met. | thread rolling machine | máquina para fabricar y roscar pernos y tornillos |
| transp., mech.eng. | thread rolling tool | herramienta para filetear por rodadura |
| transp., met. | thread root | fondo de filete |
| tech. | thread root | fondo de rosca |
| transp., met. | thread-root draft | garganta hasta el núcleo de rosca |
| comp., MS | thread-safe | seguro para subprocesos (Pertaining to multithreaded applications and how threads share and access data) |
| comp., MS | thread safety | seguridad para subprocesos (The ability for multiple threads to access and share data in a correct way) |
| nat.sc., agric. | thread-sail filefish | pez ballesta (Stephanolepis cirrhifer (Temminck and Schlegel,1850)) |
| tech. | thread seizure | agarrotamiento de la rosca |
| textile | thread slack | hilo de costura flojo |
| textile | thread slippage | deslizamiento del hilo de coser |
| mech.eng. | thread spindle | husillo roscado |
| textile | thread spinning | producción de hilo de coser |
| pack. | thread spool | bobinado (de hilo) |
| pack. | thread spool | bobina (de hilo) |
| pack. | thread-stitching machine | cosedora |
| commun. | thread stitching machine | máquina de coser alambre |
| pack. | thread stitching machine | máquina cosedora con hilo |
| pack. | thread-stitching machine | grapadora |
| industr., construct. | thread stop motion | parahilos |
| textile | thread take up | toma de la aguja |
| textile | thread tension | tension del hilo de costura |
| industr., construct. | thread tensioner | freno de hilo |
| industr., construct. | thread tensioner | tensor de hilo |
| industr., construct. | thread thickness | grueso del hilo |
| immigr., tech. | thread...to sew the spine | hilo..con que está cosido el lomo |
| industr., construct. | thread waste | desperdicio de lana peinada desde bobinas |
| tech., industr., construct. | thread waste tearer | diablo desfibrador de hilos y borra |
| construct. | trapezoidal thread screw jack | husillo de rosca trapezoidal |
| industr., construct. | traversing thread guide | guíahilos de vaivén |
| textile | two-thread chain stitch | punto de cadeneta de dos hilos |
| textile | two-thread fleecy fabric | muletón de urdimbre visible |
| gen. | woollen thread and yarn | hilos de lana |