square neck bolt

Carriage bolts are threaded fasteners with a smooth domed head and a square shoulder below. When tightened, the embedded material prevents rotation. They are paired with nuts and require no tools on the head side. They are commonly used in carpentry, furniture, and construction. They are mostly made of steel or stainless steel.

The countersunk head square neck bolt is a fastener with a countersunk head and a square platform on the neck. There is no need to fix the head during installation, and only the nut is tightened. It is highly efficient; the countersunk head design does not hook foreign objects and does not affect the appearance; the square neck has a reliable anti-rotation effect and is suitable for scenes with narrow or no wrench operating space.

Carriage bolts, also called carriage screws, are common fasteners with various classifications and uses. According to the shape of the head, flat head carriage bolts are used to hide joints or places with limited space, and round head cassette bolts are used for joints that can withstand greater shear force; according to materials, carbon steel has good strength and corrosion resistance, and stainless steel is corrosion resistant and beautiful. It is mainly used to fix and connect parts of structures such as carriages. It can carry a certain weight and can also prevent the connecting parts from loosening and falling through preloading and friction to ensure safe use.

Countersunk head square neck bolt: Agricultural machinery field: As the core prototype of "plow tip wire", it is used to fix vulnerable parts such as plow tips, plow blades, and rotary tiller blades. The countersunk head prevents hooking on the soil, and the square neck prevents rotation, adapting to the vibration environment of field operations.

Construction and decoration: Used for connecting wooden boards, plywood, and partition boards, such as floor installation, guardrail fixing, and ceiling keel splicing. The countersunk head does not destroy the surface flatness, and there is no need to reserve space for a wrench.

Machinery and equipment: Used for equipment shields, casings, fixation of non-metallic parts, and compact structure assembly of small machinery. It is easy to install and does not interfere with equipment operation.

Furniture and civil scenes: used for the assembly of table and chair frames, wardrobe cabinets, and outdoor fences. The countersunk head design does not scratch clothing, and the square neck prevents loosening. It is suitable for mass production and daily use needs.

Execution standard: DIN608 DIN603

Strength level: 4.8 8.8 10.9 12.9 A2 A4