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10-29-2013, 07:33 AM | #3 | ||||||
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Knowing the basic process of screw timing is only part of the issue. The rest includes having a turnscrew that is properly ground to fit the slots perfectly. Otherwise you will bugger up the new screws as well. You must also know how to use that turnscrew, and how much torque is necessary to achieve "timing."
Be aware that the Galazan screw heads are often oversize in diameter, and need adjustment in that plane as well. In addition, the gun you have may require that the screw heads be engraved once they are fit. Plain screws on a gun of higher grade than Trojan do not look correct no matter how well they are timed and given patina. Finally, the Galazan screws are soft as delivered. The proper job is to harden the screws after they are fit and engraved. Sorry to add more worry to a seemingly simple job. But doing the job right is the only responsible way to do it. If you are a hobbyist, it's best to have a pro handle this... as well as your troublesome "ding." Brad Bachelder is very good. |
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03-22-2014, 07:12 PM | #4 | ||||||
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I wish to have some new screws in my BHE. What hardening procedure would be correct for the Galazan screws after fitting and engraving? There is little case-hardening left on the action. Many thanks.
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Galazan Screws |
05-14-2014, 10:01 PM | #5 | ||||||
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Galazan Screws
Fellow at Galazan sez their screws are made from cold-rolled steel. He did not think this material could be hardened?
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05-15-2014, 07:18 AM | #6 | ||||||
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If you have some experience in using the stuff, Kasen-It from Brownells is worth a try. But it will turn the surface dark, which must be then must be scrubbed down to match your frame patina.
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05-15-2014, 07:46 AM | #7 | ||||||
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When I make screws, I use brownells fatigue rod. It is commonly used for firing pins as well. It does not need to be tempered or hardened after the part is made.
I have not had a problem with firing pins breaking of screws not holding up when usin this material.
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05-15-2014, 12:07 PM | #8 | ||||||
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Where did the term "timing" or "timed" screws ever come from? I never heard it until about 2-3 years ago, and it seemed to surface only on this site. I think it's a term somebody made up; I was always taught the proper terminology was "qualify", referring to the finishing (of assembly) practice of making sure all screw slots are parallel along a chosen axis (e.g., horizontal or vertical) in a receiver face or similar surface in which one or more screws are oriented to each other to ensure proper slot alignment. In the case of a gun with only one floorplate screw, for example the A.H. Fox, the screw is "qualified" along a butt-to-muzzle axis so that the slot follows this line.
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05-28-2014, 09:30 AM | #9 | ||||||
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I'd bet you're correct. I used the term timing without much thought. Its use probably goes back to a hands on a clock-face description. Fitted or qualified might be better.
I haven't touched this 16ga. I'm feeling the pull/fighting the urge of sending it off for a degree of restoration. Thanks for all the input. |
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05-28-2014, 08:45 PM | #10 | |||||||
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Quote:
nothing new as to where is comes from - I think early on - it was heard in reference to British guns
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"If there is a heaven it must have thinning aspen gold, and flighting woodcock, and a bird dog" GBE |
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