Specialist manufacturer BST Supplies deals in the nuts and bolts of precision.
It provides the Royal Navy with tens of thousands of reasons to be grateful every time vessels in its nuclear submarine fleet set out from dock.
The Wolverhampton firm - October winners of the Birmingham Post's business awards - supplies high-tech fasteners which are essential in ensuring the safe operation of the vessels.
Joint managing director Stuart Mee, aged 54, said even smaller nuclear submarines have thousands of the "first level fasteners".
In lay terms, they are the nuts and bolts which, if they were not up to scratch, could lead to a catastrophe.
Mr Mee said: "Well, put it like this, failure is not an option.
"If I explain that each fastener has a file this thick (he indicates a centimetre or more) you'll get an idea of the quality control needed."
BST is going from strength-to-strength.
The business has doubled its factory-size with the purchase of a 38,000 sq ft production centre in Fordhouse Road, Bushbury.
It is one of the main manufacturers in the UK of fasteners to the petrochemical, offshore and naval industries.
Previously, the 18-year-old company rented three different units in Strawberry Lane, Willenhall, totalling just 15,000 sq ft.
Mr Mee, who co-founded the firm in 1987 with joint-managing director Tony Lawless, said the move had been prompted by increased demand.
At one stage BST operated from one unit in Tyseley, Birmingham, with just two people.
Now it is a #4 million annual turnover enterprise employing 50 people and the business is hoping to expand further in the future.
Mr Mee, who started as an apprentice on the factory floor at a GKN subsidiary at Deritend, said BST was on the constant look-out for suitable candidates.
He said: "We take on apprentices every year. It's fair to say it's not always easy to find the people we need."
Mr Mee accepted the award from the Lord Mayor of Birmingham, Councillor John Hood, at the city's Council House.
He said: "This is a tremendous fillip for our company and I hope it will prove to be a fillip for other manufacturers in the the region."
Coun Hood praised the company and said: "We can't afford to lose any more of our manufacturing base and I'd like to say thank you to BST for playing its part in continuing to keep the flag flying so proudly."
Mr Mee's son James, aged 29, has worked his way up through the ranks to become general manager at the business.
He paid tribute to the workforce, saying: "We're a young and determined company. I'm very proud, for everybody associated with our business. It's a real honour to receive this award."
* The main sponsors of The Birmingham Post Business Awards are Intercity Mobile Communications and Churchill Vintners in association with Champagne Taittinger.
British Airways and Aston Business School providefurther support, along with Biz-tv, part of Aston Media at Aston University, which produces a business video of each monthly winner worth #2,500.
Aston Science Park has been named as co-sponsor of the annual award luncheon.
For more on the Post business awards visit www.icbirmingham.co.uk/postbizawards