The U.S. aircraft register, updated daily
Parts

Mod Bolt

No failure report names the mod bolt. 1 FAA approvals let 1 company make a replacement mod bolt, Aero-K Precision Machining & Assemblies holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a mod bolt and sell it as an approved part for the models named. These are the companies holding such approvals for a mod bolt:

For these models most: Embraer EMB-145 ERJ 145 (1), Embraer EMB-135 ERJ 135 and Legacy (1).

MakerPartReplacesFitsGrantedStatus
Aero-K Precision Machining & AssembliesMod. Bolt AK-1173-00241173-0024Embraer EMB-135ER, EMB-135LR, EMB-135KE2009-11-01current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.