The Silver Flat Head Self-Tapping Screw 3x8mm is a professional-grade picture frame fastener manufactured exclusively for the framing industry. Every Silver Flat Head Self-Tapping Screw 3x8mm unit leaving our production line is inspected for dimensional accuracy, ensuring consistent performance across high-volume frame assembly operations.
Product Specifications: Silver Flat Head Self-Tapping Screw 3x8mm
Understanding the exact dimensions of the Silver Flat Head Self-Tapping Screw 3x8mm ensures correct selection for your specific moulding thickness and finish requirements. This fastener features a 3 mm thread diameter, a 8 mm threaded shank length, and a 5 mm Flat / Countersunk Head (平头) — all finished in silver (Carbon Steel, Zinc-plated (Silver)). It is engineered as a self-tapping screw, eliminating the need for pre-tapped holes in wood and foam board substrates.
Key Technical Parameters
Thread Diameter: 3 mm | Thread Length: 8 mm | Head Diameter: 5 mm | Head Style: Flat / Countersunk Head (平头) | Drive: Phillips | Material: Carbon Steel, Zinc-plated (Silver) | Finish: Silver | Application: Picture frame industry; wood & foam board only.
Why Choose the Silver Flat Head Self-Tapping Screw 3x8mm for Picture Frame Assembly?
Frame makers worldwide trust the Silver Flat Head Self-Tapping Screw 3x8mm because it combines three critical qualities: dimensional precision, finish consistency, and reliable self-tapping performance. In production environments where hundreds of frames are assembled daily, fastener consistency directly impacts throughput and reject rates. The Silver Flat Head Self-Tapping Screw 3x8mm is designed to meet these demands.
The silver finish is matched to industry-standard frame hardware tones, ensuring your corner fixings blend with the overall frame aesthetic. Whether you are producing a single gallery piece or fulfilling a retail chain order, the Silver Flat Head Self-Tapping Screw 3x8mm delivers the same result every time.
Application Guidelines for the Silver Flat Head Self-Tapping Screw 3x8mm
The Silver Flat Head Self-Tapping Screw 3x8mm is approved for use on wood mouldings and foam board substrates only. It is not suitable for steel, aluminium, or general construction applications. For optimal results, drive at low torque using a Phillips #2 bit. In harder woods, a 2.2 mm pilot hole is recommended to prevent splitting and reduce driving resistance.
Compatibility and Selection Guide
Selecting the correct length is critical for joint strength. The 8 mm thread length is best matched to moulding wall thicknesses of 4–10 mm. For thinner mouldings, consider the shorter variants in the same series; for thicker frames, the longer options are available in the XKY Framing catalogue.
Visit our related framing screws page to explore compatible variants. For industry standards and fastener specifications, the ISO fastener standards portal provides authoritative reference material.
Ordering and Availability
The Silver Flat Head Self-Tapping Screw 3x8mm (SKU: V13) is stocked as a standard product. Bulk packaging is available for high-volume frame manufacturers. Contact XKY Framing customer service for volume pricing and lead times. All orders are subject to our standard framing hardware quality guarantee.
Frequently Asked Questions About the Silver Flat Head Self-Tapping Screw 3x8mm
Q: Is the silver flat-head screw stronger than the black one?
A: The silver version uses a 3mm thread diameter vs 2.5mm in the black version, providing approximately 44% greater thread engagement cross-section, resulting in higher pull-out strength.
Q: Is a countersink pre-drill required?
A: In soft pine and foam board the head self-sinks. For MDF and hardwood a 90° countersink bit pre-treatment is recommended for a perfectly flush finish.
Q: What head angle does the countersunk head use?
A: Standard 90° included-angle countersunk head, consistent with ISO metric flat-head screw standards.
About XKY Framing Fasteners
XKY Framing specialises exclusively in the picture frame hardware sector, offering a comprehensive range of self-tapping screws, v-nails, offset clips, and frame-hanging accessories. Every product is designed to meet the specific demands of professional frame makers, ensuring quality and consistency across the entire product range. Explore the full collection at www.xkyframing.com/catalog/.
