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Classic/Antique Car Repair/Classic door hinge bolts

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Expert: - 3/9/2008


Question
QUESTION: I am looking for grade 8 door hinge bolts.  I have a 1936 Pierce Arrow and cannot find the straight slot bolts to replace in the door hinges. I think they are about a 5/16 x 4"
Can you help.
Also, how do you adjust to door to close properly?
Thanks

ANSWER: Is this a counter sunk head screw?

---------- FOLLOW-UP ----------

QUESTION: I don't know the names of the ype of screws, but the head looks like a very heavy duty wood screw type with a straight slot.  It has machine threads though.

Answer
I think that what you are looking for is called a machine screw. I use a company called Fastenal as they have stores world wide. On line you can find them at www.fastenal.com. I would suggest that stainless be used. Now these bolts usually went through the door hinge and then the sheet metal. There was usually a piece of 3/16ths behind all of this that sandwiched the body and squeezed the door in place. And this whole mess is allowed to move around as the holes are slotted to allow adjustment.
Brad

Classic/Antique Car Repair

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Brad Sears

Expertise

All automotive including antique and collectible. However if the car has been modified I can only answer in general terms and maybe get you pointed in the right direction.

Experience

Automotive tech instructor. Syndicated auto columnist 1970's though the early 1990's. Syndicated auto radio talk show, Ask Brad About cars, CBS Radio 70's through 90's TV Show "Last Chance Garage" 1980's PBS-TV syndicated. Auto instructor for the following companies: Fram Autolyte Holly Carter AMF Ford Motor University Of Conn Blue Hills Technical School Sugar River Technical Center Grew up in a family garage in Needham Mass and turned wrenches from the age of 14.

Publications
Manchester Union Leader, Nashua Telegraph, Motor Service Magazine, Yankee Magazine, Popular Mechanics (Saturday Mechanic early 80's), Los Angeles Times, New York Times, and lots more.

Education/Credentials
More than I care to remember. Basically Franklin Technical Institute in Boston, Northeastern University, Fitchburg State Teachers College, Tufts University, and a lot of factory schools along the way.

Awards and Honors
Moto Award winner. And much more.

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