in 2 offers
The lowest price for 8g (4.20mm) x 1/2" Countersunk Phillips (PH2) Self Tapping Screw A2-70 Stainless G304 ANSI B18.6.4 right now is $5.00 at Bolt & Nut Australia, compared across 2 retailers.
The all-time low was $5.00 on 25 Apr 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 13 May 2026.
8g (4.20mm) x 1/2" Countersunk Phillips (PH2) Self Tapping Screw A2-70 Stainless G304 ANSI B18.6.4
Last updated at 13/05/2026 10:51:43
8g (4.20mm) x 1/2" Countersunk Phillips (PH2) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Next-day delivery $5
Hobsons - #8 x 1/2 316 Stainless Ansi B18.6.3 / A4 Self-Tapper Csk Phil | T16C08050 (Pack Of 200)
Delivery between 14–22 May $7.95
originally posted on ebay.com
wont rust and hence will last a long time near the beach. Main use is to replace the nails in some electrical / coax / misting tube clamps by removing the nail and drilling a 3mm hole. Then a cordless drill can drive them into a timber section that would otherwise bend, vibrate etc. with a hammer, due to no supporting structure immediately behind the area that you wish to secure the cable / tube etc.
originally posted on ebay.com
good
originally posted on ebay.com
quality at a good price
| Alternative Brands | Brighton Best | Inox World |
| Brand | Hobson Engineering |
| Class Grade | A4-70 G316 |
| Corrosion Protection Level | Ultimate |
| Custom Label 0 | Screws|Self Tappers|Countersunk Head |
8g (4.20mm) x 1/2" Countersunk Phillips (PH2) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Next-day delivery $5
Hobsons - #8 x 1/2 316 Stainless Ansi B18.6.3 / A4 Self-Tapper Csk Phil | T16C08050 (Pack Of 200)
Delivery between 14–22 May $7.95
wont rust and hence will last a long time near the beach. Main use is to replace the nails in some electrical / coax / misting tube clamps by removing the nail and drilling a 3mm hole. Then a cordless drill can drive them into a timber section that would otherwise bend, vibrate etc. with a hammer, due to no supporting structure immediately behind the area that you wish to secure the cable / tube etc.
good
quality at a good price
| Alternative Brands | Brighton Best | Inox World |
| Brand | Hobson Engineering |
| Class Grade | A4-70 G316 |
| Corrosion Protection Level | Ultimate |
| Custom Label 0 | Screws|Self Tappers|Countersunk Head |
