Brass Chicago Screw

A single curved head brass nail, also known as a collision nail or a male female nail. The top of the hat has a curved surface and a straight groove, which can be fixed with a straight screwdriver. Made of brass material, it will not rust or fade. The child nail and mother nail are used in combination, threaded from both sides, tightened and fixed, with a flat back that is not exposed.

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Product Description

The top of the ordinary nail hat is flat or round convex. This one is made with a curved surface that feels like a small bead, smooth and glossy, without scratching or hooking the clothes. There is a straight groove in the middle of the hat top, which can be fixed and positioned with a straight screwdriver without tilting when tapped. Even if you really want to dismantle it one day, you can use a screwdriver to cut open the back without damaging the leather surface.

Child mother nails are divided into two parts: "child nails" (caps with nail feet) and "mother nails" (caps with hole seats). The child nail passes through from the front, and the mother nail is put on from the back and knocked tightly.

Name	Brass Chicago Screw
Material	Brass
Standards	GB,DIN, BSW, JIS, UNC, UNF, Non-standard, Customized Drawing
Thread	Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF.
Sizes	M4
Finish	Plain/Zinc plated/Black Oxide/others
Price	0.03usd/pcs-0.50usd/pcs
MOQ	Stardard item(Usually little hundred-little thousand)/determined if non-standard

Product Feature

The rounded head does not scratch hands and the material is not damaged: the head is polished into a rounded shape with chamfered edges. Installed on the surface of the bag or the front of the belt, it feels smooth when touched by hand and will not scratch the clothes or damage the leather surface. This is very important in the leather goods industry, and customers' first impression when they receive it is that they are meticulous in their work.

A straight groove can be twisted with any tool: a straight screwdriver, coin, key, and even the tip on the edge of a nail clipper can be twisted. When a handmade leather goods master customizes, there is no need to search for specialized batch heads in the toolbox. Moreover, a straight groove is easier to clean than a cross groove. If glue or wax is inserted into the groove, it can be easily removed with a needle.