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The lowest price for 4g (2.90mm) x 5/8" Countersunk Phillips (PH1) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4 right now is $5.00 at Bolt & Nut Australia, compared across 3 retailers.
The all-time low was $5.00 on 24 Apr 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 14 May 2026.
4g (2.90mm) x 5/8" Countersunk Phillips (PH1) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Last updated at 14/05/2026 00:50:42
4g (2.90mm) x 5/8" Countersunk Phillips (PH1) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Next-day delivery $5
Pack Size 2 Stainless G316 Countersunk 4g (2.9mm) X 5/8" Self Tapping
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Qty 10 Countersunk 4g (2.9mm) X 5/8" 16mm Marine Self Tapping Screw
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Hobsons - #4 x 5/8 316 Stainless Ansi B18.6.3 / A4 Self-Tapper Csk Phil | T16C04062 (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 |
4g (2.90mm) x 5/8" Countersunk Phillips (PH1) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Next-day delivery $5
Pack Size 2 Stainless G316 Countersunk 4g (2.9mm) X 5/8" Self Tapping
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Qty 10 Countersunk 4g (2.9mm) X 5/8" 16mm Marine Self Tapping Screw
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Hobsons - #4 x 5/8 316 Stainless Ansi B18.6.3 / A4 Self-Tapper Csk Phil | T16C04062 (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 |
