304 Stainless Steel Slotted Truss Round Head Screws M2–M6 GB947

$16.28 $18.40

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Size

Length

304 Stainless Steel Large Head Slotted Truss Screws – M2 to M6

Upgrade your hardware collection with these precision-engineered 304 (A2-70) stainless steel slotted truss round head machine screws. Featuring an oversized, wide-profile truss head that distributes clamping force over a larger surface area, these GB947-standard screws are ideal for electronics assembly, DIY projects, cabinetry, fixtures, and general fastening tasks where a low-profile yet broad head is needed.

Key Features

Premium 304 (A2-70) Stainless Steel – Excellent corrosion resistance and long-lasting durability for both indoor and outdoor use
Oversized Truss / Round Head – Wide bearing surface prevents pull-through and distributes load evenly
Slotted Drive – Compatible with standard flat-head screwdrivers; easy to install with common tools
Wide Size Range – Available in M2, M2.5, M3, M4, M5, and M6 diameters; thread lengths from 3 mm to 25 mm
Metric Thread Standard GB947 – Consistent pitch and dimensions for reliable, repeatable fits
No Harmful Chemicals – Certified free of high-concern substances

Specifications

Specification	Details
Material	304 (A2-70) Stainless Steel
Standard	GB947
Head Style	Truss / Round (Large / Oversize)
Drive Style	Slotted
Screw Type	Machine Screws
Available Diameters	M2 (2 mm) / M2.5 (2.5 mm) / M3 (3 mm) / M4 (4 mm) / M5 (5 mm) / M6 (6 mm)
Thread Pitch	0.4 mm (M2) / 0.45 mm (M2.5) / 0.5 mm (M3) / 0.7 mm (M4) / 0.8 mm (M5) / 1.0 mm (M6)
Thread Length	3 mm – 25 mm
Country of Origin	Made in China (Mainland)

Common Applications

Electronics enclosures and PCB mounting
Furniture and cabinetry assembly
DIY hobby builds and maker projects
Automotive interior trim and panel fastening
Thin-sheet metal and plastic fastening where a wide head prevents pull-through

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Frequently Asked Questions

Q: What is the difference between a truss head and a standard round head screw?

A: A truss head (also called an oversized or large-flange round head) has a wider, lower-profile dome compared to a standard pan or round head. This broader bearing surface spreads the clamping load over a larger area, making it especially useful in softer materials, thin sheets, or applications where a standard head might sink or pull through.

Q: Are these screws suitable for outdoor or corrosive environments?

A: Yes. Made from 304 (A2-70) stainless steel, these screws offer strong resistance to rust, moisture, and general corrosion, making them suitable for both indoor and moderate outdoor applications. For highly aggressive marine or chemical environments, A4 (316) stainless steel would be the recommended upgrade.

Q: What tools are needed to install slotted screws?

A: Slotted drive screws are installed with a standard flat-head (straight-blade) screwdriver. Make sure to use a blade that closely matches the slot width to minimize the risk of cam-out and protect the screw head during installation.

Q: How do I read the size notation (e.g., M3*10)?

A: The "M" denotes a metric thread. The number after "M" is the nominal thread diameter in millimetres (e.g., M3 = 3 mm diameter). The number after the asterisk (*) is the thread/shank length in millimetres (e.g., *10 = 10 mm long).

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.