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Carriage bolts, commonly known as round-head square-neck bolts, are fasteners with a round or semi-circular head and a square neck. They are used with a nut to connect parts with through holes.
Carriage bolts are classified by head size into large semi-circular head carriage bolts and small semi-circular head carriage bolts, and are widely used in electronics manufacturing, machinery equipment, chemical industry, automotive industry, and many other fields.
Chipboard screws are fasteners specifically designed for wood-based substrates such as particleboard (also known as chipboard).
Applications of Chipboard Screws:
1. Panel Furniture Assembly: Widely used for connecting shelves and side panels in custom furniture such as wardrobes, cabinets, and bookshelves.
2. Custom Cabinet Construction: Especially suitable for cabinets made of particleboard or solid wood particleboard, achieving “invisible connections” that are sturdy and reliable.
3. DIY Installation: Because no pre-drilling is required, it is suitable for non-professional users to quickly assemble.
DIN571 Wood Screws are hexagonal head wood screws conforming to the German DIN standard, primarily used in construction and furniture. Diameters range from 4-20mm (e.g., M6, M8, M10, M12), and materials include stainless steel (e.g., 304/316) and carbon steel. The equivalent Chinese standard is GB102-1986.
Full Threaded Rod is a fastener with threads running from beginning to end. Its head is typically hexagonal, round, or square, designed for easy tightening with tools. The full threaded rod body is covered with continuous threads, usually triangular or trapezoidal in shape.
In terms of materials, Full Threaded Rods are available in carbon steel and stainless steel. Carbon steel Full Threaded Rods offer various surface treatments, including galvanizing, chrome plating, or powder coating, to meet different corrosion resistance and aesthetic requirements. Stainless steel studs offer superior corrosion resistance and aesthetics, with a smooth surface and are less prone to loosening.
The hex coupling nut is a fastener with a hexagonal shape and a significantly longer length than a regular nut. Its core function is to connect two threaded rods (such as studs, threaded rods, or bolts) to achieve axial extension or rigid mating. It is an “extended hexagonal nut” specifically designed for strong thread-to-thread coupling connections.
Hex nuts are standard hexagonal fasteners with threaded inner holes. They are primarily used with bolts and screws, generating axial force through helical engagement to connect and secure machine parts. They are widely used in construction, automotive, and machinery industries.
Hex Nut Classification:
1. By Thickness: Hex nuts are divided into Type 1 (standard height, most widely used), Type 2 (thickened, resistant to frequent assembly and disassembly), and thin nuts (for space-constrained applications).
2. By Function: Hex nuts have evolved into specialized variants such as anti-loosening types (e.g., slotted nuts with cotter pins), flange types (with flanges to increase the stress surface), and cap types (to protect bolt heads).
Hexagon Bolts are threaded bolts characterized by their hexagonal heads. Hexagon bolts come in fully threaded and partially threaded versions and are widely used in applications such as machinery and construction.
Hexagon Bolts conform to DIN931 , ISO4014 , DIN960 , ISO8765 , DIN601
Material: Carbon Steel，Stainless Steel
Finish: Self Colour，Zinc Plated，HDG，Zinc Flake
A high tensile steel hexagon head bolt (part threaded), used to fasten two or more components together.
Hexagon drive fits respective sockets and spanners.
Grade 8.8，10.9, 12.9 Steel.
Bright Zinc Plated (BZP) or HDG or Zinc Flake finish offers resistance to corrosion.
High Quality Nuts are fasteners that are screwed onto a bolt or threaded rod to secure a fastener. High Quality Nuts are generally classified into several types, including carbon steel, stainless steel, and non-ferrous metals (such as copper). High quality nuts are typically hexagonal in shape with internal threads, used to mate with bolts to tighten related components.
High Quality Nuts are categorized by their properties according to national standards (GB), German standards (DIN), international standards (ISO), Japanese standards (JIS), and American standards (ASTM/ANSI). GB, DIN, and JIS standards use “M” to indicate size (e.g., M8, M16), while American and British standards use fractions or “#” to indicate size (e.g., 8#, 10#, 1/4, 3/8).
High Strength Hexagon Bolts refer to bolts with a strength grade of 8.8 or higher, commonly using strength grades 8.8s and 10.9s, with 10.9s being the most prevalent. High Strength Hexagon Bolts require a large preload and are frequently used for connections in structures such as bridges, rails, and high-voltage and ultra-high-voltage equipment.
Stainless steel threaded rods (also known as fully threaded rods or threaded bars) are headless cylindrical fasteners made of stainless steel such as 304, 316, and 201. They conform to international and national standards such as DIN975 and GB15389, and are available in various diameters and lengths from M3 to M24. They are widely used in fields with high requirements for corrosion resistance and hygiene, such as building curtain walls, pipe supports, medical devices, food processing equipment, and marine engineering.
Tapping screws are fasteners that automatically form internal threads in the materials being joined without pre-tapping. They are widely used for joining metals, plastics, wood, and other materials.
Tapping screws consist of three parts: a head, a shank, and the end of the shank. The key components of a tapping screw are: head shape, tightening method, thread type, and end type.
Truss head tapping screws are self-tapping fasteners with a specific head shape, designed to balance connection strength, anti-loosening performance, and ease of installation. They are widely used in sheet metal, building structures, and light load-bearing applications.
U bolts, also known as saddle bolts, are non-standard parts named for their U-shaped shape. They are threaded at both ends for use with nuts and are primarily used to secure tubular or sheet-like objects. Because the way they secure objects resembles a person riding a horse, they are called saddle bolts.
Product Standards: National Standard: JB/ZQ4321—1997, German Standard: DIN3570. Custom production based on customer drawings and samples is also possible.
Wood screws are commonly made of iron and brass, and come in various types depending on the head shape: round head, flat head, and oval head.
Wood screw heads are further divided into slotted screws and Phillips head screws. Round head screws are generally made of mild steel, flat head screws are polished, and oval head screws are usually chromium-cadmium plated. They are commonly used for installing hinges, hooks, and other hardware accessories.
Wood screw specifications are determined by the diameter and length of the shank and the head type.