Iibholiti eziHexagonalzisetyenziselwa ukubopha iindawo zentsimbi kunye. Ngokuqhelekileyo zisetyenziselwa ukwakhiwa, oomatshini kunye nezicelo zeemoto. Intloko ye-hex ye-bolt ivumela ukuqiniswa ngokulula kunye nokukhulula nge-wrench okanye i-socket, iyenze ibe lukhetho oludumileyo lokukhusela izinto ezinzima.

Ukulinganisa ibholithi yokulinganisa, kufuneka uqikelele i-diameter, i-pitch kunye nobude.

1. Ububanzi: Sebenzisa i-caliper ukulinganisa ububanzi bebholithi. Umzekelo, ukuba yi-M20 bolt, ububanzi bungama-20mm.

2. Ubungakanani bomsonto: Sebenzisa igeyiji yepitch ukulinganisa umgama phakathi kwemisonto. Oku kuya kukunceda uqonde i-pitch yentambo, eyona nto ibalulekileyo ekufaniseni ibholithi kwi nut echanekileyo.

3. Ubude: Sebenzisa irula okanye umlinganiselo weteyiphu ukulinganisa ubude bebholi ukusuka emazantsi entloko ukuya kwincam.

Ngokulinganisa ngokuchanekileyo le miba mithathu, unokwazi ukuchonga kwaye ukhethe ibhowuthi eyiyo ye-metric yesicelo sakho esithile.

"TPI" imele "imisonto nge-intshi nganye." Ngumlinganiselo osetyenziselwa ukubonisa inani lemisonto ekhoyo kwibholiti enye ye-intshi okanye isikrufu. I-TPI luphawu olubalulekileyo ekufuneka luqwalaselwe xa uthelekisa iibholiti kunye namantongomane okanye umisela ukuhambelana kwecandelo elinemisonto. Umzekelo, i-8 TPI bolt ithetha ukuba ibholithi inemisonto esi-8 epheleleyo kwi-intshi enye.

Ukumisela ukuba ibholithi yimetric okanye i-imperial, unokulandela ezi zikhokelo ngokubanzi:

1. Isistim yokulinganisa: Khangela amanqaku kwiibholithi. Iibholithi zemetriki zidla ngokumakishwa ngonobumba "M" olandelwa yinombolo, efana ne-M6, M8, M10, njl., ebonisa ububanzi kwiimilimitha. Iibholiti ze-Imperial zivame ukuphawulwa ngeqhezu okanye inombolo elandelwa yi "UNC" (I-Unified National Coarse) okanye "i-UNF" (I-Fine yeSizwe eManyeneyo), ebonisa umgangatho wentambo.

2. Isandi somsonto: Ilinganisa umgama phakathi kwemisonto. Ukuba umlinganiselo ukwimillimeters, kusenokwenzeka ukuba yi metric bolt. Ukuba umlinganiselo ukwimisonto nge-intshi nganye (TPI), kusenokwenzeka ukuba ibholithi yobukhosi.

3. Iimpawu zentloko: Ezinye iibholithi zinokuba neempawu entloko ukubonisa ibakala okanye umgangatho wazo. Umzekelo, iibholithi zemetric zinokuba namanqaku afana no-8.8, 10.9, okanye 12.9, ngelixa iibholithi ze-imperial zinokuba namanqaku afana no-“S” okanye ezinye iimpawu zohlelo lweebholithi zesakhiwo.

Ngokuqwalasela ezi zinto, unokugqiba ukuba i-bolt yi-metric okanye i-imperial.