Latest news
Hi Everyone,
First up let me apologize in advance for my blatant lack of grammatical skill
The jury is still out on which is the best self-tapping screw system. 
Here is a little that I know about Phillips head screws verses square drive screws to help you decide what’s best for your project.
Here is a little that I know about Phillips head screws verses square drive screws to help you decide what’s best for your project.Phillips head screws apparently first invented by a guy named Henry Phillips and originally named “cruciform”> I’m not sure exactly when, but I do know the first commercial application was apparently when he sold them to General Motors in 1936 and all Cadillac’s from that era used the new ground breaking screws. Anyone got a 36 caddie so we can check?
At about the same time (1907) some Canadian gent named P L Robertson invented the square drive.
Most of the screws we sell still have the diameter of the shank measured in the old wire gauge, To convert to metric click this link
Whilst the popularity of square drive screws has certainly taken off recently Aussies and Americans are consuming a huge amount of stainless steel square drive decking screws. Popular amongst some chippies and boat builders for the better purchase provided by the more robust internal square drive.
Still, we are selling more phillips head screws especially in marine grade stainless, whilst the phillips head may strip out a little easier, the screw can be driven at a slight angle and faster than the square drive screws due to its better centering, unlike the square drive which needs the driver inserted reasonably straight.
With huge improvement in screw drivers these days and the adjustable clutch in even the cheapest battery drills we see less and less stripping of the drive system.
Square drive screws are certainly becoming easier to obtain we have a range of pan head and countersunk self-tapping screws in stainless steel and also zinc plated. No galvanized square drive screws yet.
Phillips head self-tappers are still more readily available and certainly cost less than square drive self-tapping screws. Another advantage is that almost everyone has a phillips head screw driver, even my wife keeps a phillips head screw driver in the kitchen. But I doubt she has a square drive.
If anyone has anything to add to this or if I have it wrong, please let me know and I will add it to this text. Just send it in an email and I will paste it in.
Written by Jimmy Gamble
If you can't buy it we can make it.
All types of threads and threaded items.
Nuts, bolts, screws and washers can be manufactured to your specifications.
Threaded rod can be cut to length.
Bolts can be made from any material:
Stainless steel
Nylon
High tensile.
Simply contact Jimmy sales@boltsnutsscrewsonline.com with drawings, pictures or clear descriptions
Material certificates supplied when required with all manufactured bolts.
No comments:
Post a Comment