A2 stainless steel nylon hammer fixings with a countersunk hammer screw, for fast through fixing of battens, ties and clips outdoors into masonry.
- A2-304 stainless steel drive screw
- Suitable for external use
- Countersunk head for a flush finish
- Ribbed PA6 nylon plug
- Hammer-in through fixing
- Available in multiple sizes (The first number is the plug diameter, which is also the drill size. The second number is the plug length.)
Sizes marked (TO ORDER) may not be available from stock for same-day or next-day delivery. Please contact our team to confirm delivery dates.
A2 Stainless Steel Nylon Hammer Fixings - Countersunk Head
A2 stainless steel nylon hammer fixings with a countersunk hammer screw, for fast through fixing of battens, ties and clips outdoors into masonry.
- A2-304 stainless steel drive screw
- Suitable for external use
- Countersunk head for a flush finish
- Ribbed PA6 nylon plug
- Hammer-in through fixing
- Available in multiple sizes (The first number is the plug diameter, which is also the drill size. The second number is the plug length.)
Sizes marked (TO ORDER) may not be available from stock for same-day or next-day delivery. Please contact our team to confirm delivery dates.
Countersunk Head A2 Stainless Steel Nylon Hammer Fixings
A2 stainless steel nylon hammer fixings, also known as stainless hammer screws, combine a ribbed PA6 nylon plug with an A2-304 stainless steel drive screw. Joiners, landscapers and fit-out trades use them for fast, repetitive fixings outdoors and in damp areas. The stainless screw resists rust where plated screws would corrode and stain.
How Stainless Steel Screws Stop Rust Streaks on External Fixings
Zinc plated screws lose their coating outdoors and in damp areas, then rust. On site, that means orange streaks down render, cladding and timber, and fixings that work loose as the screw corrodes. The A2 stainless steel drive screw resists corrosion in normal external conditions, so fixings stay clean and secure.
Key Features
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A2-304 stainless steel screw: resists rust outdoors and in damp areas, so it will not stain the surface around the fixing.
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Countersunk head: finishes flush with the fixture, so cladding, boards and trims sit flat over battens.
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Stainless hammer screw: the drive screw sets with a hammer in one action, for fast fixing across long runs.
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Through fixing: drilled through the fixture in its final position, so holes always line up.
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Ribbed PA6 nylon plug: the ribs grip the hole wall and stop the plug turning as the screw is driven.
Who is this for
Trades and roles
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Carpenters and joiners
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Cladding installers
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Landscapers and fencing contractors
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Electricians
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Maintenance teams
Industries
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Construction
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Housebuilding
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Landscaping
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Facilities management
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Building services
Specifications
| Specification | Detail |
| Product name | A2 Stainless Steel Nylon Hammer Fixings - Countersunk Head |
| Product code | NHS0 |
| Product type | Nylon hammer-in fixing (plug and drive screw) |
| Screw | A2-304 stainless steel drive screw |
| Plug material | PA6 nylon, ribbed |
| Head | Countersunk |
| Installation | Through fixing, hammer-in |
| Drill hole diameter | Same as plug diameter, 6mm or 8mm |
| Use | Internal and external |
Size Selection
| Product code | Size | Max fixture thickness | Min hole depth |
|---|---|---|---|
| NHS06070SS | 6mm x 70mm | 40mm | 35mm |
| NHS08080SS | 8mm x 80mm | 40mm | 45mm |
| NHS08100SS | 8mm x 100mm | 60mm | 45mm |
Other Sizes Available in the Range, Contact Our Team to Order
| Product code | Size | Max fixture thickness | Min hole depth |
|---|---|---|---|
| NHS05030 | 5mm x 30mm | 5mm | 30mm |
| NHS05050 | 5mm x 50mm | 25mm | 30mm |
| NHS06050 | 6mm x 50mm | 20mm | 35mm |
| NHS08060 | 8mm x 60mm | 20mm | 45mm |
Compatibility
| Base material, use or condition | Suitability |
|---|---|
| Concrete | Suitable |
| Solid masonry, brick and dense block | Suitable |
| External and exposed fixings | Suitable, A2 stainless steel screw |
| Damp internal areas | Suitable, A2 stainless steel screw |
| Coastal, marine or swimming pool environments | Not recommended, use A4 (316) stainless steel fixings |
| Aerated, hollow or lightweight block | Not recommended, not a listed base material |
| Plasterboard | Not recommended, not a listed base material |
| Heavy or overhead hanging loads | Not recommended, use a metal anchor |
| Fixings that must perform in a fire | Not recommended, use a steel fixing |
Typical Users and Projects
Joinery, cladding and external works trades use stainless hammer fixings on housing, refurbishment and commercial projects. Most fixings go into external brick, block and concrete, or into damp areas such as plant rooms and wash areas. Installers choose them where a plated screw would rust within a season.
Typical applications
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Fixing timber battens to external masonry walls before cladding or render board goes on.
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Securing frame ties for external door and window frames into masonry reveals.
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Fixing external conduit clips and electrical boxes to brick and concrete walls.
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Fixing trellis, fence rails and garden structures to masonry walls.
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Fixing timber and trims in damp internal areas such as plant rooms and wash rooms.
How to use
Step 1: Choose the size by fixture thickness, using the Size Selection table.
Step 2: Drill through the fixture into the base material, using a drill the same diameter as the plug, 35mm deep for 6mm and 45mm deep for 8mm.
Step 3: Clean the hole by brushing and blowing out the dust.
Step 4: Push the fixing through the fixture until the collar sits on the surface.
Step 5: Drive the hammer screw into the plug until the countersunk head sits flush.
Common mistakes
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Using A2 stainless on the coast or around swimming pools, where A4 is needed.
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Choosing a size too short for the fixture, leaving too little plug in the wall.
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Drilling oversize, so the plug spins instead of gripping.
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Using nylon fixings for heavy, overhead or fire-critical loads.
Safety
Wear eye protection when drilling and hammering. Drilling concrete and masonry releases respirable crystalline silica dust, so use on-tool extraction and suitable RPE in line with HSE guidance. Do not use a nylon fixing as the only support where fire performance is required.
Maintenance
Store fixings dry in their pack until use. Inspect external fixings during maintenance and refix any battens or clips that have worked loose.
Frequently Asked Questions
Q: Which size of stainless hammer fixing do I need?
A: Pick the size by the thickness of the item being fixed. The 6mm x 70mm and 8mm x 80mm both take fixtures up to 40mm thick, and the 8mm x 100mm up to 60mm. Choose 8mm for heavier battens and larger frames.
Q: What does 6mm x 70mm mean on a hammer fixing?
A: The 6mm is the plug diameter, which is also the drill bit size you need. The 70mm is the length of the plug. A set depth must sit in the wall, 35mm for 6mm and 45mm for 8mm, so the rest of the length is the thickest item it can fix.
Q: What does A2-304 stainless steel mean?
A: A2 is a stainless steel grade used for fasteners, and 304 is its common steel grade name. It contains around 18 per cent chromium and 8 per cent nickel, which form a protective layer against rust. A2 suits general outdoor use and damp areas. For coastal, marine or chlorinated environments, A4 (316) stainless steel gives better protection.
Q: What are these fixings not suitable for?
A: They are not the right choice for coastal sites, swimming pools or other chloride-rich areas, where A4 stainless should be used. They are not suitable for heavy, overhead or fire-critical loads, plasterboard, or aerated and hollow block.
Q: Why choose stainless hammer screws instead of zinc yellow plated hammer fixings?
A: Zinc yellow plated screws suit dry interiors but rust once exposed to rain or damp. A2 stainless screws resist corrosion outdoors, so they last longer and do not leave rust streaks. They cost more, so use them where fixings will be exposed.
Q: Which base materials can I fix into?
A: They are designed for concrete and solid masonry, including brick and dense concrete block. For aerated or hollow block, use a fixing designed for those materials.
Q: Will stainless hammer fixings stain timber or render?
A: The A2 stainless screw does not rust in normal outdoor conditions, so it will not leave rust streaks on timber, render or cladding. This makes it a cleaner choice for visible external fixings.
Q: Do stainless hammer fixings need any maintenance?
A: No routine maintenance is needed for the screw itself. Check external battens and clips during planned inspections and refix any that have worked loose.
