You are here:

Antique Safes/Acorn Finial Screw Thread Mystery


Matt Lamborn wrote at 2009-02-01 01:16:50
Stephen...this sounds familiar. We are refinishing an old Nat. Safe and Lock Co. safe. A couple of the finials were missing. Fortunately I have a friend that is a professional machinist and used to work at Timken in the research and development (of metals). He told me the same thing...can't identify the threads on the existing acorn finials. We decided to under cut the "would-be threaded area" with no threads and simply Epoxy them in. I have not gotten to this step in our refinishing stage yet. I think instead of epoxying them in I will wrap the "would-be threaded area" with duct tape so they will still somewhat thread in (into the existing threaded are of hinge)and will stay put. They (in our case) are brass so we want to be able to remove them and shine them up every so often. The original ones appear to be a cast lead. Best of luck! Matt (Nahum 1:7)

Cushmandoug wrote at 2012-12-14 23:03:43
Some finials I have found to be standard PIPE THREAD type, not machine thread. I suspect that during the era of manufacture, British supplies may have been utilized.

Antique Safes

All Answers

Answers by Expert:

Ask Experts


Terry V. Andreasen (Andy)


Safe and Vault related Questions; Antique Safe Repair and Restoration; With over 40 years in the Safe & Vault industry, if I can't answer your question I know where to get the answer. Current Project: Restoration of two Tilton & McFarland Safes from the 1860's. Will answer Safe & Vault related questions concerning age, value, restoration, moving, opening & repairing, parts, operation and history. Note: It is not my intention to teach you to open safes or to provide information which may aid in the unlawful opening of a safe. I will not give out drill points or information which I deem inappropriate.


40 years in the Safe & Vault Industry. Service Manager for one of the largest Safe & Vault companies on the West Coast. Graduate of Lockmasters Safe Lock Servicing, Safe lock Manipulation and Safe Deposit Lock Courses. Graduate of Locksmith Institute. Certified Instructor for the California Locksmith Association teaching Basic and Advanced Lock Servicing, Basic Safe opening and Repairing. Factory Trained by AMSEC, LORD Safes, LeFebure, Mosler, KabaMas, LaGard and Sargent & Greenleaf

Safecrackers International and the National Antique Safe Association

Graduate of Locksmith Institute 1972 Graduate Lockmasters Safe Lock Servicing 1974 Graduate Lockmasters Safe Lock Manipulation 1975 Graduate Lockmasters Safe Deposit Lock Servicing 1985 Instructor Certified - California Locksmith Association - 1985 Factory trained by AMSEC, MAJOR, STAR, Johnson-Pacific, Kaba-MAS, Allied-Gary, ISM, Lord, Brown Safe, EXL, Mosler, Diebold.

Awards and Honors
2009 - 2013 Listed in AllExperts top 50 Experts. All Experts Categories - Safes & Security Containers, Locksmithing, Antique Safes. Retired US Army Chief Warrant Officer (CW4), with 39 years of total service. With numerous awards from Vietnam, Desert Storm and Operation Iraqi Freedom. US Navy - 1971-1981 US Army Reserve 1984-2013 US Army Retired

Past/Present Clients
US Secret Service, FBI, BATF, Local Law enforcment agencies, Diebold, Hamilton Pacific, Red Hawk Int., Chubb International, Bank of America, Wells Fargo Bank, Mechanics Bank, El Dorado Savings Bank, many Credit unions and smaller banks. McDonalds, Togos, BurgerKing, TacoBell, Carls Jr. FoodMaxx, SaveMart, Lucky's, Albertson's, Raley's, Safeway, NobHill, Bell Markets, PW Markets. Great America, Century Theatres, Cinemark Theatres, UA Cinemas, and many homeowners and small businesses. Provide warranty service for lock and safe manufactures. Service area is Northern California - Fresno to Oregon, including western Nevada

©2016 All rights reserved.