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Simpson

Simpson Strong-Tie 4.8 x 50mm 10G BFHS Bi-Metal 316 Stainless Hardwood to Steel Decking Screws - 250 Box

★★★★★
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Simpson Strong-Tie 4.8 x 50mm 10G BFHS bi-metal decking screws fasten hardwood timber decking to steel joists, supplied in a box of 250. The bi-metal construction combines a 316 stainless steel body with a hardened drill point, and the winged point lets the screw drill through steel without pre-drilling.

  • Diameter: 4.8mm (10G)
  • Length: 50mm
  • Material: 316 stainless steel with zinc coating finish
  • Head type: Ribbed flat head, square drive #2
  • Point type: #2 drill point
  • Thread: Fine
  • Pack quantity: 250

The winged drill point cuts through steel from 1.2mm to 2.4mm thick, and the ribbed flat head countersinks neatly into hardwood for a clean finish. Built for hardwood timber-to-steel decking, these screws suit coastal and exposed decks where the 316 stainless body delivers strong corrosion resistance.

More about this product

Simpson Strong-Tie 4.8 x 50mm 10G BFHS Bi-Metal 316 Stainless Hardwood to Steel Decking Screws - 250 Box provide reliable fastening of hardwood decking to steel joists.

  • 316 stainless steel bi-metal screw with zinc coating finish for corrosion resistance
  • Drill point with wings for easy installation through 1.2mm to 2.4mm steel
  • Ribbed flat head for a neat countersink finish
  • Square drive #2
  • Designed for fastening hardwood timber decking without pre-drilling
  • Box of 250

Questions & Answers

What are these decking screws designed for?

Fastening hardwood timber decking to steel joists.

What size are they?

4.8mm (10G) diameter by 50mm long.

How many come in the box?

250 screws.

What steel thickness can they drill through?

The winged drill point drills through steel from 1.2mm to 2.4mm thick.

What drive do they use?

A square drive #2.

Are they suitable for coastal decks?

Yes, the 316 stainless steel body gives strong corrosion resistance for exposed and coastal use.

Do I need to pre-drill?

No, the winged drill point is designed to fasten hardwood decking to steel without pre-drilling.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 85 reviews
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65%
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
R
Rebecca J. 📍 Albury NSW
★★★★★
3 months ago
✓ Verified Purchase

One of my best online buys

Quality product at a fair price. Delivered quickly. Happy.

M
Matt D. 📍 Bunbury WA
★★★★★
3 months ago
✓ Verified Purchase

Happy with SuperSaver AU

Have bought Simpson before and always been happy. Great price on SuperSaver AU and delivery was fast. Arrived perfectly packaged. Works flawlessly from day one.

Z
Zoe C. 📍 Bendigo VIC
★★★★★
4 months ago
✓ Verified Purchase

Fast delivery and perfect condition

Fast delivery and exactly what I ordered. Very happy with this.

A
Andrew F. 📍 Wagga Wagga NSW
★★★★★
4 months ago
✓ Verified Purchase

Outstanding value

Bought this on a bit of an impulse after seeing it on the site and really glad I did. Quality is much better than the price suggests — feels premium and well made. Ordered Monday and it arrived Wednesday in Sydney. Nothing loose or damaged. A few people have asked where I got it.

T
Tanya B. 📍 Mildura VIC
★★★★★
4 months ago
✓ Verified Purchase

Good buy — fast shipping

Really good value — compared it to similar products at twice the price and there is very little difference in quality. Fast shipping and arrived in perfect condition.

K
Kyle M. 📍 Gladstone QLD
★★★★★
5 months ago
✓ Verified Purchase

Just as described

Works perfectly. Fast delivery. Would recommend to anyone.

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