HG/T 20634 Fully Threaded Studs: Flange Clamping for Class Series Piping

Our ISO 7380 Button Head Socket Screws (also known as Allen button head screws) are designed for assemblies requiring a low-profile rounded head and a neat exposed finish, covering ISO 7380-1 standard heads and ISO 7380-2 heads with a collar. The internal hex drive allows tightening with a hex key where clearance around the head is limited, while carbon, alloy and 304/316 stainless steel with black oxide, zinc or zinc flake finishes offer material and coating choices. These fasteners are ideal for equipment enclosures, sheet metal panels, mounting brackets and automation equipment, with M3-M16 sizes and custom lengths from drawings.

Our DIN 439 Hex Thin Nuts (also known as Hex Slotted Nuts or Low-Height Nuts) are engineered for applications where space is constrained and a standard nut profile is unsuitable. Manufactured to the exacting specifications of the German DIN 439 standard, these nuts provide a reliable and secure fastening point with a significantly reduced height. Their precise, low-profile design makes them the ideal choice for locking mechanisms, thread protection, and assemblies with limited clearance, without compromising on the strength and wrenchability inherent in the hexagonal form.

Our DIN 975 Threaded Rods (also known as Fully Threaded Studs, All-Thread Rods, or Threaded Bars) are precision-manufactured, continuous thread fasteners designed for maximum versatility in industrial, construction, and mechanical applications. As defined by the German DIN 975 standard, these rods feature uninterrupted threads along their entire length, providing infinite adjustability and the ability to be cut to any required size on-site . Manufactured from high-quality materials including carbon steel and stainless steel, our threaded rods serve as the essential connecting element in countless assemblies—from suspended ceiling systems and pipe hangers to heavy machinery anchoring and structural steel connections. The combination of standardized dimensions, material options, and full-thread design makes DIN 975 threaded rods the ultimate "cut-to-length" fastening solution for professionals worldwide.

High-performance Square Head Bolts from a trusted China factory. Our DIN 603 coach bolts offer positive locking for wood-to-metal fastening. Contact our professional suppliers for carbon and stainless steel options.

High-precision DIN 6921 and ISO 1665 hex flange bolts from a leading China factory. Professional suppliers providing durable fastening solutions with smooth or serrated surfaces for optimal clamping performance and pressure distribution.

Our DIN 6923 Hexagon Flange Nuts (also known as hex serrated flange nuts or flange lock nuts) represent the evolution of efficient, reliable fastening technology. Engineered with an integrated, non-spinning flange washer at the base, these nuts combine the functions of a standard hex nut and a washer into a single, unified component . The integral flange provides a larger bearing surface that distributes clamping force over a wider area, eliminating the need for separate washers while improving pressure distribution and reducing the risk of material damage .

Manufactured in strict compliance with DIN 6923 (equivalent to ISO 4161) specifications, these nuts are available with either a smooth or serrated (ribbed) flange underside. The serrated version features locking teeth that bite into the bearing surface, creating a mechanical locking effect that resists loosening under vibration and dynamic loads . This design makes DIN 6923 flange nuts the preferred choice for automotive assemblies, industrial machinery, and structural applications where reliability and installation efficiency are paramount.

Source professional-grade drywall screws from a leading China factory. Our expert suppliers provide precision-engineered carbon steel fasteners with bugle heads for seamless gypsum board installation on wood or steel studs.