304/316 Stainless Steel Bugle Batten Screws with 4 Ribs
Batten screws are pretty much an Australian invention, a kind of heavy duty fastener widely used into hard landscaping, decks and outdoor furniture and structures.
Batten Screw has a countersunk head so it lies flat in the timber and has an internal hex drive rather than a phillips or pozidrive head so you can get plenty of leverage to tighten them up. As a heavy duty fastener, it come in various lengths starting at 50mm and are all 14g (6.3-6.5mm) thick. To make countersinking even easier they are manufactured with ribs under the head so you can drive them straight in and they will cut the countersink themselves. The head is also a special shape known a s a bugle head instead of a straight countersink due to the fairly shallow change in angle.
Taking the design a step further they also benefit from a type 17 point, this is a self drill point allowing the screws to drill its own hole as you drive it in while the coarse threads clear the cuttings, some hardwoods still need a pilot hole though as they can be as hard as concrete
Material: Stainless Steel 304, 316(Marine grade) Batten Decking Screws
Head Type : Bugle Head w/ 4 Nibs
Drive Type: Square Drive
Thread Type: Coarse Thread
Point Type: Type 17 Point
Diameter: #14 (6.3 ~ 6.5mm)
Length: 13 - 150mm, 1/2 - 6"
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