1. Echiche
Ihe mkpuchi hexagonal dị n'èzí bụ ngwa igwe, nke a makwaara dị ka skru hexagonal mpụga, mkpọsa hexagonal mpụta ma ọ bụ ihe mkpuchi hexagonal mpụta.

2.Ngwọta elu
Na usoro mmepụta nke bolts, ọgwụgwọ elu bụ otu n'ime njikọ dị mkpa. Ọ nwere ike ime ka elu nke bolt ahụ mezuo ihe ụfọdụ a chọrọ ma melite nguzogide corrosion, ike na aesthetics.
Enwere ọtụtụ ụzọ ọgwụgwọ elu maka bolts, ndị a na-ahụkarị bụ ndị a:
Galvanizing: A na-emikpu ihe mkpuchi ahụ na ngwọta zinc, a na-ekpuchikwa zinc ahụ n'elu akwa mkpuchi ahụ site na oyi akwa site na mmeghachi omume electrochemical, na-eme ka ọ bụrụ nchara na-eguzogide corrosion.
Hot-mikpu galvanizing: Mgbe emechara bolts, a na-emikpu ha n'ime mmiri zinc a wụrụ awụ, a na-emepụta akwa zinc n'elu site na mmeghachi omume kemịkal iji nweta mgbochi nchara, na-eguzogide corrosion na mmetụta ndị ọzọ.
Ngwọta na-agbaji: A na-emepụta ihe nkiri oxide ojii n'elu bolt site na mmeghachi omume kemịkalụ iji meziwanye nguzogide corrosion ya.
Ọgwụgwọ Phosphating: Tinye ihe mkpuchi ahụ na ngwọta phosphating iji mepụta ihe nkiri phosphating n'elu iji meziwanye nguzogide corrosion ya.
Ngwọta siri ike: Site na ọgwụgwọ okpomọkụ ma ọ bụ ịgbasa elu, a na-emepụta akwa mkpuchi nke nwere ike dị elu n'elu ihe mkpuchi ahụ iji meziwanye ike ya ma na-eyi nguzogide.
Ndị a dị n'elu bụ usoro ọgwụgwọ elu bolt nkịtị. Usoro ọgwụgwọ dị iche iche kwekọrọ na ọnọdụ ngwa dị iche iche na ihe achọrọ. Mgbe ị na-eme ọgwụgwọ n'elu bolt, a ga-emerịrị ya dịka ụkpụrụ kwekọrọ na nkọwapụta iji hụ na bolts a na-agwọ na-emezu ihe achọrọ arụmọrụ dị mkpa.

3. Ọrụ ọkwa
Akara ọkwa arụmọrụ nke bolt hexagonal mpụta nwere akụkụ abụọ nke ọnụọgụgụ, nke na-anọchi anya uru ike tensile ọnụ na oke ike mkpụrụ nke ihe bolt.
Dịka ọmụmaatụ, bolt nwere ọkwa arụmọrụ 4.6 pụtara:
a. The nominal tensile ike nke bolt ihe ruru 400MPa;
b. Ọnụ ọgụgụ nke ike-ike nke ihe mkpuchi bụ 0,6;
c. Ike ntinye aha nke ihe mkpuchi ahụ ruru ọkwa 400 × 0.6 = 240MPa
Performance larịị 10.9 elu-ike bolts, mgbe okpomọkụ ọgwụgwọ, nwere ike nweta:
a. The nominal tensile ike nke bolt ihe ruru 1000MPa;
b. Ike ntinye aha nke ihe mkpuchi ahụ ruru 1000 × 0.9 = 900MPa.

4. Ọdịiche dị n'etiti mpụta hexagonal bolts nkịtị na ike mpụta hexagonal bolts dị elu.
Enwere ike iji bolts hexagonal nkịtị, mana enweghị ike iji bolts dị elu mee ihe ọzọ.
A na-emekarị ihe mkpuchi dị elu nke ígwè dị elu nke 45 ígwè (8.8s), 20MmTiB (10.9S), ma bụrụ ihe mkpuchi nke prestressed. Maka ụdị esemokwu, jiri mgbawa torque tinye prestress akọwapụtara, yana maka ụdị nrụgide, kpọghee isi torx ahụ. A na-ejikarị ígwè nkịtị (Q235) mee bolts nkịtị ma ọ bụ naanị na ọ dị mkpa ka a sie ike.
bolts nkịtị na-abụkarị ọkwa 4.4, ọkwa 4.8, ọkwa 5.6 na ọkwa 8.8. Ihe mgbochi ike dị elu na-abụkarị ọkwa 8.8 na ọkwa 10.9, yana ọkwa 10.9 bụ ihe a na-ahụkarị.
Oghere mkpọda nke bolts nkịtị adịchaghị ibu karịa nke bolts nwere ike dị elu. N'ezie, oghere bolt nkịtị dị ntakịrị.