Surface Color Zinc Carbon Steel Cross Self Tapping Screw

Coarse Thread Bugle Head Screw Corrosion Resistant Rust Resistant Drywall Screws

Company Certificate:

Product Description:

Drywall Screws Application: Drywall screws (self tapping screws) are the main fasteners used to fix gypsum boards in indoor decoration, especially suitable for ceiling and partition construction.During installation, it is necessary to use fine thread dry wall nails (suitable for light steel keel) or coarse thread drywall screws (suitable for wooden keel), with a length of usually 25-35mm (single-layer board) or 38-50mm (double-layer board).During construction, screws should be evenly inserted into the keel at a spacing of 15-20cm, and the screw's head should be slightly recessed (1-2mm below the board surface) for subsequent coating coverage.For the ceiling, it is recommended to increase the spacing to 10-15cm to enhance load- bearing capacity; A distance of 10-15cm should be reserved at the edge of the partition wall to avoid cracking.Normal use of black phosphating drywall nails can be replaced with galvanized or stainless steel materials in damp areas such as kitchens and bathrooms to ensure long-term stability.

Drywall Screws Advantage: Easy installation and high construction efficiency Drywall screws are self tapping designs that do not require pre drilling and can directly penetrate gypsum boards and keels (wood/light steel). If carbon steel or 410 stainless steel is used as the material, an electric screwdriver can be used to quickly fix them in bulk, improving construction efficiency. Cost economy Drywall screws are inexpensive and have uniform specifications, making them suitable for large-scale construction and reducing material and labor costs. High strength fixation The thread design (coarse/fine) of drywall screws is suitable for different keel materials, with strong grip to avoid loosening or sagging of gypsum boards.Dry wall screws, also known as horn screws, have a "horn shaped" design that disperses pressure and reduces the risk of surface cracking on gypsum boards.

Technical Parameters:

d		3.5	4	4.3	5.1	5.5
d	Max	3.7	4	4.3	5.1	5.5
	Min	3.4	3.7	4	4.8	5.2
dk	Max	8.5	8.5	8.5	8.5	8.5
	Min	8.14	8.14	8.14	8.14	8.14
L	25-130mm

Drive Style	Phillips
Corrosion Resistance	Yes
Thread Diameter	3.5-5.5mm
Head Style	Bugle Head
Thread Type	Coarse
Length	25-130mm

This table describes the technical parameters of a black fine thread gypsum board drywall screw or wood drywall screw or black drywall screw with bugle head that has a length of 25-130mm, a thread diameter of 3.1-5.2mm, a coarse thread type, high sharpness, and high durability.

Application:

Packaging:

Carton Packaging	Outer Cartonbox Packaging	Pallet Packaging
Bolts are packed in neutral packaging boxes, with standard quantities arranged in small cartons. The exact number of units per carton will be confirmed with the customer to align with their specific requirements. Customized packaging configurations are available upon request.	The small cartons are then consolidated into larger master cartons for secure transportation and storage. The quantity per master carton can be customized based on client specifications or aligned with standard logistical requirements.	The palletized units are securely wrapped with waterproof film and reinforced with packaging straps. Customer-specific shipping marks or labels are affixed to each pallet, ensuring clear identification and compliance with logistics requirements. This final packaging stage guarantees weather-resistant protection and stability during transportation.

Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work and development, it has become a factory covering an area of over 2000 square meters with a registered capital of 6.8 million yuan. So far, the company has two holding subsidiaries and has gradually developed into a medium-sized fastener manufacturing enterprise integrating research and development, production, and sales. Currently, the factory has more than 50 employees and complete production and testing equipment, including more than 50 production equipment and more than 10 testing equipment. The factory has an annual production capacity of 4000-5000 tons of fasteners and an annual output value of 40-50 million RMB. Our products have a normal delivery time of 20-30 days and a stock time of 1-5 days. Our independent brand "YB" accepts OEM, ODM. Our main products include various fasteners, standard parts, bolts, screws, wood screws, self tapping screws, turning screws, combination screws, nuts, accessories, flat washers, lifting rings, etc. In addition, we also have multiple CNC lathes and milling machines to provide customized fastener services for customers. The company's products are mainly used in the fields of automobiles, machinery, electronic equipment, sheet metal, security, new energy, etc., and have been widely praised by domestic and foreign customers. Welcome new and old customers to inquire.