A kọwapụtara bolts ndị ahụ na ANSI B1.13M maka nnabata ọkwa 6 g.Ngwa Bolt dabara na ASTM F568M maka Klas 4.6.Ngwa maka bolts na-eguzogide corrosion dabara na ASTM F 568M maka Klas 8.83.bolts.Usoro ọgwụgwọ elu ga-agbaso AASHTO M232.
Ụdị nkịtị maka onye na-asa ákwà bụ 76 * 44 * 4mm, anyị nwere ike soro eserese ndị ahịa.
Maka onye na-atụgharị uche na agba na-acha ọcha, ọbara ọbara, na odo mgbe niile, ị nwere ike ịgwakọta ha n'onwe gị.
The bolts na akụ na-iji kechie ụzọ nche, biputere, spacer n'ime otu akụkụ.
The reflector nwere ike na-egosipụta ìhè mgbe ndị mmadụ na-anya ụgbọ ala n'abalị, Na na ị nwere ike mfe ịhụ nsọtụ nke guardrail.Ọ nwere ike belata ihe mberede ahụ mere.
A na-edozi oghere azụmahịa n'etiti w beam na doo atọ.