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115mm x 40 Grit Ultra Coarse Alpha Silver Series Flap Disc for Metal & Stainless
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| Price for each item | Subtotal | % savings | ||
| Buy 1 | Buy 1 | $10.00 each | $10.00 | - |
| Buy 2 + | Buy 2 - 4 | $9.00 each | $18.00 | 10.00% |
| Buy 5 + | Buy 5 - 9 | $8.00 each | $40.00 | 11.11% |
| Buy 10 + | Buy 10 - 19 | $7.50 each | $75.00 | 6.25% |
| Buy 20 + | Buy 20 - 29 | $7.00 each | $140.00 | 6.67% |
| Buy 30 + | Buy 30 - 49 | $6.00 each | $180.00 | 14.29% |
| Buy 50 + | Buy 50 - 99 | $5.50 each | $275.00 | 8.33% |
| Buy 100 + | Buy 100 - 199 | $5.25 each | $525.00 | 4.55% |
| Buy 200 + | Buy 200 - 499 | $5.00 each | $1,000.00 | 4.76% |
| Buy 500 + | Buy 500 + | $4.50 each | $2,250.00 | 10.00% |
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In Stock
Other Sizes in Range
Delivery Information
Orders under $30 (Bulky items sent as parcel for FREE)
- Aust Post UNTRACKED Letter – FREE
- Parcel – From $8
- Express – From $10
- Click and Collect – 2hrs
Orders over $30
- Parcel – FREE
- Express – From $10
- Click and Collect – 2hrs
5% Off
10% Off
15% Off
| Product | Silver Series Flap Disc |
|---|---|
| Industry Size | 115mm x 40 grit |
| Size | M115 (115mm) |
| Coating | Iron Free - suitable on Stainless Steel |
| Bore (b) | 22.2mm |
| Grit | 40 |
| Grade | Ultra Coarse |
| Backing | Glass Fibre Plate |
| Bonding Agent | Resin |
| Grain | Aluminium Oxide |
| Design | Convex 15° |
| Application | Mild Steel, Stainless Steel & Sheet Metal |
| Max Operating Speed | 80 m/s |
| Max RPM | 13,300 rpm |
| Compatible Machinery | All Major Models |
| Standard Made To | ANSI B7.1 / EN13743 |
| Country of Origin | Europe |
| Brand | Alpha |
Dimensional data is a guide only. Tolerance differences exist between brands and batches
About Flap Discs
Flap Discs are grinding discs made of overlapping abrasive flaps bonded to a backing plate. As the disc wears, fresh abrasive is exposed continuously, giving smoother grinding and a finer finish than a bonded grinding wheel. Used face-on like a grinding wheel but produces less heat and a much better surface finish. Standard 22.23mm arbor, sized 100 / 115 / 125 / 180mm for standard angle grinders. Grits from 40 (ultra coarse) to 120 (medium). Alpha Silver Series for metal and stainless steel.
Frequently Asked Questions
Used face-on like a grinding wheel but produces less heat and a smoother finish. Ideal for blending welds, smoothing edges, finishing stainless steel where blueing must be avoided. Wears faster than a bonded grinding wheel but leaves a much better surface.
Check the grinder's max RPM against the disc's marked rating before use.
Lower grit numbers cut faster but leave a rougher finish; higher grit numbers cut slower but finish smoother. For paint removal, start coarse (40 to 60). For surface preparation before painting or coating, finish at 120 to 180. For polishing metal, work up through several grits.
Stainless requires zirconia or ceramic-grain coated abrasives (most BNA SKUs) to avoid loading and overheating. Aluminium and brass work with the same disc but with light pressure to avoid clogging the abrasive.
How to Measure
Measurements Accurate to the relevant standard and should be used as a guide only. They are either hand-measured or taken from suppliers' catalogues. We only stock Alpha for this product; substituting another brand is rare and would always be confirmed with you first.
Resources
For full technical data including key product information, range and a CAD drawing, see our Technical PDFs library.
Convert between metric and imperial sizes, gauge to mm, decimal to fraction and TPI to pitch with our measurement conversion calculators.
About the Brand
Alpha · Sheffield Group · Australian
Alpha is the Sheffield Group's premium drilling, cutting and fastening brand. Australian-owned, Sheffield has supplied industrial and trade markets since 1957 and is one of the country's largest distributors of cutting tools and accessories.
Range: The Alpha range covers Gold Series HSS jobber drill bits, HSS Cobalt drill bits, Bi-Metal Cobalt holesaws, TurboBORE spade bits, heavy-duty timber augers, SDS Plus masonry bits, countersinks, ONSITE+ impact-rated step-tip drill bits, and the ThunderMax range of impact-driven accessories.
Positioning: Premium-quality, production-grade tools at trade pricing. Same-day dispatch from BNA Brisbane.
Pricing & Delivery
Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.
Buy with Confidence
15+ years selling online · 25,000+ stock lines · 200 million pieces ex-stock in Brisbane QLD.
Excellent on REVIEWS.ioTrusted by DIYers, tradespeople, builders, manufacturers, government, councils and engineers across Australia · Read reviewsDisclaimer
Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.
Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.
If you see any problems with any of our specifications or you require additional information please contact us.
Delivery
Weigh less than 500grams
Exceptions: Tools, Kits, Bulky items = Sent as a parcel with tracking
Small orders that fit into the slot of your Letterbox are sent:
FREE with Aust Post Letter delivery with NO TRACKING and delivery between 4-12 business days
Or
Select a Quicker delivery service
- $7.00 Parcel Delivery 2-7 business days
- From $12.00 Express Delivery 1-4 business days
- From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days
Or
Click & Collect - Warehouse pickup
Unit 9, 93 Rivergate Place, Murarrie, QLDPlace your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday
Weigh more than 500grams
Included is orders under $30 but weigh more than 500grams or wont fit in the slot of your letterbox
Including Large and Bulky heavy orders are sent:
FREE as a Parcel Delivery WITH TRACKING and delivery between 2-7 business days
Or
Select an Express delivery service
- From $12.00 Express Delivery 1-4 business days
- From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days
Or
Click & Collect - Warehouse pickup
Unit 9, 93 Rivergate Place, Murarrie, QLDPlace your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday
Further delivery information can be found on our Delivery page
Supplier Details
| MPN | GFDA11540 |
| UPC | 9313601016204 |
