Final answer:
A company selling fasteners worldwide to manufacturing companies would benefit most from a 'Producer to business buyers' distribution channel, as it simplifies transactions and reduces costs.
Step-by-step explanation:
A company that manufactures fasteners and sells them to various manufacturing companies around the world would most likely benefit from using the distribution channel: Producer to business buyers. This direct approach is often preferred for B2B (business-to-business) transactions, especially where products are specialized and require specific industry knowledge, or where there is an established relationship between the producer and the business buyers. Using wholesalers or retailers may introduce additional costs and complexities that are not necessary when dealing with business buyers who are knowledgeable about what they need and can buy in bulk.