Screw Shank Roofing Nails

Screw Shank Roofing Nails with a Spiral Profile

The defining feature of a screw shank roofing nail is the spiral formed along its body. Also called spiral shank roofing nails or twisted shank roofing nails, these fasteners are driven as nails rather than installed with a screwdriver. The helical profile can make the nail rotate as it enters timber, creating a thread-like engagement with the wood.

Promisteel supplies screw shank roofing nails for buyers matching a specified roof fixing or an established distributor line. When replacing an existing item, keep a complete nail as the reference: length and wire gauge alone do not describe the spiral, the head or the finished product your customers expect.

Screw Shank Roofing Nail Specifications

The following dimensions reflect the existing Promisteel roofing nail listing. They describe an enquiry range, not every possible combination held in stock.

Match the Spiral, Not Just the Nail Length

Place two samples of the same nominal size side by side. The spiral may start at a different point, extend over a different length or have a different spacing. Those differences belong in the sample approval process, even when the carton descriptions look identical.

Keep the approved sample alongside the written specification. A close-up photograph helps identify a profile, but perspective and reflections make it unsuitable as the only dimensional record.

Check Driving Behaviour in the Intended Timber

The spiral profile is one part of the connection. Timber condition, nail diameter, penetration and installation also affect the result. A representative trial can reveal bending during driving, timber splitting or difficulty seating the head before a new nail is adopted for repeat supply.

For orders with a withdrawal-resistance requirement, use the test method and acceptance level named in the project specification. This page does not assign a universal holding value, wind rating or service-life guarantee to every screw shank nail.

Keep Head, Washer and Finish Requirements Separate

Choosing a spiral shank does not settle the roof-sheet connection. An umbrella head and a flat head provide different forms of contact with the covering. Where a washer is part of the fixing, include it in the complete sample rather than assuming that every screw shank roofing nail arrives with one.

For an assembled fixing, see roofing nails with rubber washers. A specified zinc finish can be discussed through our hot-dipped galvanized roofing nails range. Neither the washer compound nor the coating process can be established from a silver-and-black product photograph.

Make Repeat Orders Refer to the Same Nail

Give the approved sample or drawing a reference number and use it on subsequent orders. Keep the spiral profile, head, dimensions and finish under that reference; record any accepted change before the next shipment is prepared. This is more precise than asking for "the same twisted nail as last time."

• Retain a complete reference sample, including the washer if supplied.
• Identify the approved drawing or sample revision in the order.
• Include the finished profile in receiving checks, not only length and carton weight.
• Specify pack weight or count and keep different sizes clearly identified.

Screw Shank Roofing Nails FAQ