Hillman Fasteners 47704 Roofing Screw 10x2.5 in Gray Box 12

Product Description

The HILLMAN FASTENERS 47704 is a No. 10 x 2.5 inch gray hex washer head self-piercing sheeter roofing screw designed for metal roofing and sheeting applications. The ceramic coating provides corrosion resistance suited to exterior fastening conditions. Each screw includes an integrated neoprene washer that compresses on installation to create a weathertight seal at the fastening point. This fastener is sold in a box of 12 and is a standard choice for roofing contractors and sheet metal installers working on residential and light commercial projects.

These screws are intended for self-piercing installation into metal roofing panels, corrugated sheeting, and similar metal cladding assemblies. The hex washer head allows for consistent drive torque using a standard hex driver bit. The neoprene washer accommodates thermal movement and helps prevent moisture intrusion at penetration points. Typical installations include standing seam and lap-joint metal roof systems where a fast, reliable fastener is required without pre-drilling.

Key Features

• No. 10 x 2.5 inch self-piercing point eliminates the need for pre-drilling in most metal sheeting gauges
• Ceramic coating provides corrosion resistance for exterior roofing exposure
• Gray finish blends with common metal roofing panel colors
• Hex washer head allows consistent seating and drive with standard hex bit drivers
• Integrated neoprene washer creates a weathertight seal and accommodates thermal movement
• Sold in a box of 12 for controlled inventory and jobsite distribution

Compatibility

Designed as an OEM-style roofing fastener for use with metal sheeting and corrugated roofing panels requiring a No. 10 self-piercing screw with neoprene washer seal.

Installation Notes

Installation should be performed by qualified roofing contractors or sheet metal tradespeople familiar with metal roof fastening systems. Use a calibrated hex driver to avoid over-driving, which can compress the neoprene washer beyond its functional range and compromise the seal. Follow applicable building codes and roofing manufacturer fastener schedules for spacing and edge distances. Do not mix fastener finishes or materials in the same assembly, as galvanic corrosion can result.