Verb (used with object) : He unscrewed the nuts and unbolted the inspection cover.    From Dictionary.com. 

He unbolted the pig-shed door, and they looked in.    From Wordnik.com.  [Presumption of Death]

Joseph, upon proper notice, will leave it unbolted.    From Wordnik.com.  [Clarissa Harlowe] Reference

Our provisions consisted of unbolted flour and salt.    From Wordnik.com.  [Reminiscences of a Pioneer] Reference

In another minute I had unbolted the door of Madame de.    From Wordnik.com.  [The International Magazine, Volume 2, No. 2, January, 1851] Reference

Finally he rolled out of bed and unbolted the shutters.    From Wordnik.com.  [Captain Corelli's Mandolin]

At this, she slid back the chain and unbolted the door.    From Wordnik.com.  [Maigret and the Man on the Bench]

That was Leland's argument in court that it was unbolted.    From Wordnik.com.  [CNN Transcript - Larry King Live: Should There Be a Retrial in the 'Stop Sign Murder' Case? - March 15, 2001] Reference

Our bread was made of unbolted corn, and was cold and clammy.    From Wordnik.com.  [The Citizen-Soldier or, Memoirs of a Volunteer] Reference

Struan walked Wearily out of the house and unbolted the door.    From Wordnik.com.  [Tai-Pan]

Insist on having coarse bread; let it be made of unbolted meal.    From Wordnik.com.  [Minnesota; Its Character and Climate Likewise Sketches of Other Resorts Favorable to Invalids; Together With Copious Notes on Health; Also Hints to Tourists and Emigrants.] Reference

You must have left the door unbolted, how else could he get out?.    From Wordnik.com.  [The Hermit of Eyton Forest]

"I didn't know we had left any of them unbolted," Mrs. Brown said.    From Wordnik.com.  [Bunny Brown and His Sister Sue in the Sunny South] Reference

Sean got up, the tears streaking his makeup, and unbolted the door.    From Wordnik.com.  [King Rat]

He unbolted the door, looked in the dark room beyond, and listened.    From Wordnik.com.  [The Room in the Dragon Volant] Reference

Two floors below, Lo Chum put down the lantern and unbolted the door.    From Wordnik.com.  [Tai-Pan]

Something more was said outside, Grandfather hastily unbolted the door.    From Wordnik.com.  [Some Three Hundred Years Ago] Reference

No need to tell the boys that, for the front door was unbolted, and Major.    From Wordnik.com.  [Dorothy Dale's Queer Holidays] Reference

Feeling easier, Sulla opened up the window shutters and unbolted his door.    From Wordnik.com.  [The First Man in Rome]

Garron, hearing a sharp cry without, rose abruptly and unbolted his barrier.    From Wordnik.com.  [A Village of Vagabonds] Reference

He got into his coat, unbolted the door, and plunged into the purifying night.    From Wordnik.com.  [Short Stories for English Courses] Reference

'I did not leave it unbolted,' she repeated, but with less certainty this time.    From Wordnik.com.  [The Hermit of Eyton Forest]

As soon as these Games are over, the whole thing will be unbolted and trucked away.    From Wordnik.com.  [Olympic Baseball's Two-Week Wake] Reference

Literally seeing equipment unbolted from the floors of factories and shipped to China.    From Wordnik.com.  [CNN Transcript Feb 22, 2008] Reference

"I feel half-inclined to leave it unlocked and unbolted to-night and risk the consequences.".    From Wordnik.com.  [Bandit Love] Reference

She unbolted the door of the game room as Wing, the keeper, drove the cart over the cobbles.    From Wordnik.com.  [A Haunted House, and other short stories] Reference

The pendulum crusher can be easily unbolted and transported on a small truck to another site.    From Wordnik.com.  [Chapter 6] Reference

Sharpe unbolted it, hauled it up, and the innkeeper's wife pushed a great tin bath towards him.    From Wordnik.com.  [Sharpe's Honour]

Irritably she unbolted the door and went to the basin and turned on the water but none came out.    From Wordnik.com.  [Noble House]

He peered through one of the cracks, then cautiously opened the window and unbolted the shutters.    From Wordnik.com.  [Tai-Pan]

He tucked the big bottle of white powder under his left arm and cautiously unbolted and opened the door.    From Wordnik.com.  [The Judas Valley] Reference

He pushed open the unbolted door with the grass grown up to the very sill, and set the boxes and trunk inside.    From Wordnik.com.  [Land of the Burnt Thigh] Reference

Another moment and he heard the door opposite unbolted, and a perturbed but angry voice rose outside his door.    From Wordnik.com.  [Border Ghost Stories] Reference

He went downstairs with a shudder, craving stars and darkness, unbolted the front door and went out upon the porch.    From Wordnik.com.  [Kenny] Reference

"I may let in this honest woman," thought Snow-White; and she unbolted the door and bargained for one pair of stays.    From Wordnik.com.  [Favorite Fairy Tales] Reference

Delighted with the discovery, they scrambled in, and making their way up the steps found the door at the top unbolted.    From Wordnik.com.  [Mr. Pat's Little Girl A Story of the Arden Foresters] Reference

She unbolted and unchained the street door, and hurried straight across to number two hundred, where she rang peal after peal.    From Wordnik.com.  [Madeline Payne, the Detective's Daughter] Reference

This expensive, but most necessary process, prevents indigestion and bowel troubles which accompany the use of unbolted, uncooked meals.    From Wordnik.com.  [Pratt's Practical Pointers on the Care of Livestock and Poultry] Reference

Its adherents were variously denominated as Grahamites, and, from the fact of their using bread made of unbolted wheat-meal, bran-eaters.    From Wordnik.com.  [The Atlantic Monthly, Volume 17, No. 101, March, 1866] Reference