Hex Head Self Drilling Screw

Product Description

Hex Head Self Drilling Screws provide fast installation, strong grip, and excellent performance in heavy-duty structural applications, especially roofing and steel construction projects. They eliminate the need for separate drilling and tapping, which speeds up work and cuts labor costs.

Key Benefits

Efficient Installation:Drill and fasten in one step, saving up to 50% labor time over traditional methods.

Strong Hold:Hex head delivers higher torque and strength compared to regular screwsensuring tough, durable connections even in harsh weather.

Precision & Reliability:The drill tip ensures accurate, aligned fastening and reduces installation errors.

Corrosion Resistance:Often supplied with zinc, Xylan, or stainless steel coatings for long-term durability, especially outdoors or in industrial environments.

Excellent Sealing:EPDM washers ensure leak-proof joints, essential for roofing and weather-exposed applications.

Typical Applications

Metal-to-metal and metal-to-wood connections in steel frameworks, roofing sheets, wall cladding, HVAC systems, and polycarbonate panels.

Construction, industrial fabrication, and electrical duct installations.

Reliable option for environments with exposure to moisture or chemicalssuch as coastal buildings and industrial facilities.

Usage & Installation Steps

Select the proper screw size based on material thickness and drive style required.

For roofing, hex head screws with EPDM washers provide secure waterproof fixing.

Drive style (hex head) allows high torque applications using nut socket or wrench, making installation stable and reducing slippage.

Use Xylan/zinc plated or stainless steel for enhanced resistance in outdoor or corrosive settings.

Always consult size charts and perform pilot testing for optimal performance and to prevent over-penetration or material warping.

Other Well-Known Names for Same Product

hex head self drilling screw

roofing screw

metal roof fastener

EPDM washer

corrosion resistant self drilling screw

zinc plated self drilling screw

hex flange head SDS

construction fastener

tek screw

Sizes

Common size ranges include:

Diameters: 4.8 mm, 5.5 mm, #10, #12

Lengths: 13 mm to 75 mm (typically 19 mm, 25 mm, 38 mm, 50 mm, 55 mm, 75 mm)

Materials: Carbon steel, mild steel, stainless steel (304, 410 grades)

Finish: Zinc plated, stainless, galvanized

Specification	Details / Range
Diameter	4.8 mm, 5.5 mm, #10, #12
Length	13 mm 75 mm
Head Type	Hex / Hex washer / Hex flange
Washer	EPDM / Metal Bonded
Finish	Zinc Plated, Galvanized, Stainless
Application	Roofing, metal-to-metal, construction

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Precision Engineering for Sheet Metal Applications

Designed to meet rigorous standards, these self drilling screws with hex heads simplify sheet metal installations, providing sturdy and accurate fastening. Their compliance with DIN 7504 ensures reliable quality, while their varying diameters and lengths cater to different requirements, making them an essential fastener in construction and manufacturing trades.


Superior Protection and Versatility

With zinc and xylan coatings, these screws offer superior resistance to corrosion, ideal for harsh environments or outdoor applications. The choice of medium or high quality levels, combined with carbon steel or stainless steel material, allows users to select the right screw according to project demandsensuring longevity and strength in every application.