ʻO nā mea holoi paʻa hoʻohana ʻia no ka hoʻonui ʻana i ka ʻili o ka nati a i ʻole ke poʻo mea hoʻopaʻa no laila e hohola ana i ka ikaika pipili ma luna o kahi ʻāpana nui. Hiki iā lākou ke hoʻohana i ka hana me nā mea palupalu a me nā puka nui a i ʻole ʻano ʻano like ʻole.
ʻO ka nui o ka mea holoi e pili ana i kona nui puka inoa a ua hoʻokumu ʻia ma ka nui o ka screw. ʻOi aku ka nui o kona anawaena waho (OD). Hōʻike pinepine ʻia ka nui a me ka OD i nā iniha hakina, ʻoiai hiki ke hoʻohana ʻia nā iniha decimal. Hōʻike pinepine ʻia ka mānoanoa i nā iniha decimal ʻoiai mākou e hoʻololi pinepine iā ia i nā iniha fractional no ka maʻalahi.
Grade 2 flat washers should only be used with Grade 2 hex cap screws (hex bolts)—use hardened flat washers with Grade 5 and 8 cap screws. Because Grade 2 flat washers are made of soft, low carbon steel, they will "yield" (compress, cup, bend, etc.) under the higher torque values normally associated with Grade 5 and 8 cap screws. As a result, there will be a reduction in clamping force as the washer yields.
Loaʻa pinepine ʻia nā mea holoi paʻa i nā ʻano mea like ʻole me ka aluminika, keleawe, nylon, silicon keleawe, ke kila kila a me ke kila. ʻAʻole i mālama ʻia ke kila i hoʻopaʻa ʻole ʻia a i ʻole i uhi ʻia, i kapa ʻia ʻo "plain finish," i mea e pale ai i ka ʻōpala ma mua o ka uhi māmā o ka aila no ka pale ʻana i ka manawa. No laila, ʻo ka hoʻopau maʻamau no ke kila, ʻo ia ka zinc plating a me ka hot dip galvanizing.
Ma o kā lākou hoʻolālā ʻana, hiki i ka hāʻawi ʻana i ka waiwai o nā mea holoi maʻemaʻe ke pale i kekahi ʻano pōʻino o nā ʻili i hui ʻia. He ʻili lahilahi a palahalaha me ka puka ma waenakonu. Hāʻawi kēia ʻano mea holoi i ke kākoʻo i kahi wili poʻo liʻiliʻi.
Black-oxide steel washers are mildly corrosion resistant in dry environments. Zinc-plated steel washers resist corrosion in wet environments. Black ultra-corrosion-resistant-coated steel washers resist chemicals and withstand 1,000 hours of salt spray.