12g-14 x 2-1/2" Countersunk Phillips (PH3) Self Tapper Screw A4-70 Stainless G316 ANSI B18.6.4
These self tapping screws have a phillips countersunk head and a needle point. They are available in zinc plated steel or stainless steel in grade 304 or 316. Features: Available in a wide variety of sizes to suit most applications Countersunk head for a flush finish Needle point for easy penetration Choose zinc plated steel for indoor use and stainless steel for outdoor use or use in highly corrosive environments Self tapping screws – quick reference Code Size Specs Qty CST316SS0402 04g-24tpi x 09.5mm, 04g x 3/8′′ SS 316 200 CST316SS0403 04g-24tpi x 12.7mm, 04g x 1/2′′ SS 316 200 CST316SS0404 04g-24tpi x 15.9mm, 04g x 5/8′′ SS 316 200 CST316SS0405 04g-24tpi x 19.1mm, 04g x 3/4′′ SS 316 200 CST316SS0424025 04g-24tpi x 06.3mm, 04g x 1/4′′ SS 316 200 CST316SS0424100 04g-24tpi x 25.4mm, 04g x 1′′ SS 316 200 CST316SS0603 06g-20tpi x 12.7mm, 06g x 1/2′′ SS 316 200 CST316SS0604 06g-20tpi x 15.9mm, 06g x 5/8′′ SS 316 200 CST316SS0605 06g-20tpi x 19.1mm, 06g x 3/4′′ SS 316 200 CST316SS0606 06g-20tpi x 25.4mm, 06g x 1′′ SS 316 200 CST316SS0607 06g-20tpi x 31.8mm, 06g x 1 1/4′′ SS 316 200 CST316SS0608 06g-20tpi x 38.1mm, 06g x 1 1/2′′ SS 316 200 CST316SS0609 08g-18tpi x 09.5mm, 08g x 3/8′′ SS 316 200 CST316SS0610 08g-18tpi x 12.7mm, 08g x 1/2′′ SS 316 200 CST316SS0805 08g-18tpi x 19.1mm, 08g x 3/4′′ SS 316 200 CST316SS0808 08g-18tpi x 15.9mm, 08g x 5/8′′ SS 316 200 CST316SS0808C 08g-18tpi x 25.4mm, 08g x 1′′ SS 316 200 CST316SS0809 08g-18tpi x 31.8mm, 08g x 1 1/4′′ SS 316 200 CST316SS0810 08g-18tpi x 38.1mm, 08g x 1 1/2′′ SS 316 200 CST316SS0810A 08g-18tpi x 44.5mm, 08g x 1 3/4′′ SS 316 200 CST316SS0811 08g-18tpi x 50.8mm, 08g x 2′′ SS 316 200 CST316SS1003 10g-16tpi x 12.7mm, 10g x 1/2′′ SS 316 100 CST316SS1004 10g-16tpi x 15.9mm, 10g x 5/8′′ SS 316 100 CST316SS1005 10g-16tpi x 19.1mm, 10g x 3/4′′ SS 316 100 CST316SS1006 10g-16tpi x 25.4mm, 10g x 1′′ SS 316 100 CST316SS1007 10g-16tpi x 31.8mm, 10g x 1 1/4′′ SS 316 100 CST316SS1008 10g-16tpi x 38.1mm, 10g x 1 1/2′′ SS 316 100 CST316SS1009 10g-16tpi x 44.5mm, 10g x 1 3/4′′ SS 316 100 CST316SS1010 10g-16tpi x 50.8mm, 10g x 2′′ SS 316 100 CST316SS1011 10g-16tpi x 63.5mm, 10g x 2
These self tapping screws have a phillips countersunk head and a needle point. They are available in zinc plated steel or stainless steel in grade 304 or 316. Features: Available in a wide variety of sizes to suit most applications Countersunk head for a flush finish Needle point for easy penetration Choose zinc plated steel for indoor use and stainless steel for outdoor use or use in highly corrosive environments Self tapping screws – quick reference Code Size Specs Qty CST316SS0402 04g-24tpi x 09.5mm, 04g x 3/8′′ SS 316 200 CST316SS0403 04g-24tpi x 12.7mm, 04g x 1/2′′ SS 316 200 CST316SS0404 04g-24tpi x 15.9mm, 04g x 5/8′′ SS 316 200 CST316SS0405 04g-24tpi x 19.1mm, 04g x 3/4′′ SS 316 200 CST316SS0424025 04g-24tpi x 06.3mm, 04g x 1/4′′ SS 316 200 CST316SS0424100 04g-24tpi x 25.4mm, 04g x 1′′ SS 316 200 CST316SS0603 06g-20tpi x 12.7mm, 06g x 1/2′′ SS 316 200 CST316SS0604 06g-20tpi x 15.9mm, 06g x 5/8′′ SS 316 200 CST316SS0605 06g-20tpi x 19.1mm, 06g x 3/4′′ SS 316 200 CST316SS0606 06g-20tpi x 25.4mm, 06g x 1′′ SS 316 200 CST316SS0607 06g-20tpi x 31.8mm, 06g x 1 1/4′′ SS 316 200 CST316SS0608 06g-20tpi x 38.1mm, 06g x 1 1/2′′ SS 316 200 CST316SS0609 08g-18tpi x 09.5mm, 08g x 3/8′′ SS 316 200 CST316SS0610 08g-18tpi x 12.7mm, 08g x 1/2′′ SS 316 200 CST316SS0805 08g-18tpi x 19.1mm, 08g x 3/4′′ SS 316 200 CST316SS0808 08g-18tpi x 15.9mm, 08g x 5/8′′ SS 316 200 CST316SS0808C 08g-18tpi x 25.4mm, 08g x 1′′ SS 316 200 CST316SS0809 08g-18tpi x 31.8mm, 08g x 1 1/4′′ SS 316 200 CST316SS0810 08g-18tpi x 38.1mm, 08g x 1 1/2′′ SS 316 200 CST316SS0810A 08g-18tpi x 44.5mm, 08g x 1 3/4′′ SS 316 200 CST316SS0811 08g-18tpi x 50.8mm, 08g x 2′′ SS 316 200 CST316SS1003 10g-16tpi x 12.7mm, 10g x 1/2′′ SS 316 100 CST316SS1004 10g-16tpi x 15.9mm, 10g x 5/8′′ SS 316 100 CST316SS1005 10g-16tpi x 19.1mm, 10g x 3/4′′ SS 316 100 CST316SS1006 10g-16tpi x 25.4mm, 10g x 1′′ SS 316 100 CST316SS1007 10g-16tpi x 31.8mm, 10g x 1 1/4′′ SS 316 100 CST316SS1008 10g-16tpi x 38.1mm, 10g x 1 1/2′′ SS 316 100 CST316SS1009 10g-16tpi x 44.5mm, 10g x 1 3/4′′ SS 316 100 CST316SS1010 10g-16tpi x 50.8mm, 10g x 2′′ SS 316 100 CST316SS1011 10g-16tpi x 63.5mm, 10g x 2
These self tapping screws have a phillips countersunk head and a needle point. They are available in zinc plated steel or stainless steel in grade 304 or 316. Features: Available in a wide variety of sizes to suit most applications Countersunk head for a flush finish Needle point for easy penetration Choose zinc plated steel for indoor use and stainless steel for outdoor use or use in highly corrosive environments Self tapping screws – quick reference Code Size Specs Qty CST316SS0402 04g-24tpi x 09.5mm, 04g x 3/8′′ SS 316 200 CST316SS0403 04g-24tpi x 12.7mm, 04g x 1/2′′ SS 316 200 CST316SS0404 04g-24tpi x 15.9mm, 04g x 5/8′′ SS 316 200 CST316SS0405 04g-24tpi x 19.1mm, 04g x 3/4′′ SS 316 200 CST316SS0424025 04g-24tpi x 06.3mm, 04g x 1/4′′ SS 316 200 CST316SS0424100 04g-24tpi x 25.4mm, 04g x 1′′ SS 316 200 CST316SS0603 06g-20tpi x 12.7mm, 06g x 1/2′′ SS 316 200 CST316SS0604 06g-20tpi x 15.9mm, 06g x 5/8′′ SS 316 200 CST316SS0605 06g-20tpi x 19.1mm, 06g x 3/4′′ SS 316 200 CST316SS0606 06g-20tpi x 25.4mm, 06g x 1′′ SS 316 200 CST316SS0607 06g-20tpi x 31.8mm, 06g x 1 1/4′′ SS 316 200 CST316SS0608 06g-20tpi x 38.1mm, 06g x 1 1/2′′ SS 316 200 CST316SS0609 08g-18tpi x 09.5mm, 08g x 3/8′′ SS 316 200 CST316SS0610 08g-18tpi x 12.7mm, 08g x 1/2′′ SS 316 200 CST316SS0805 08g-18tpi x 19.1mm, 08g x 3/4′′ SS 316 200 CST316SS0808 08g-18tpi x 15.9mm, 08g x 5/8′′ SS 316 200 CST316SS0808C 08g-18tpi x 25.4mm, 08g x 1′′ SS 316 200 CST316SS0809 08g-18tpi x 31.8mm, 08g x 1 1/4′′ SS 316 200 CST316SS0810 08g-18tpi x 38.1mm, 08g x 1 1/2′′ SS 316 200 CST316SS0810A 08g-18tpi x 44.5mm, 08g x 1 3/4′′ SS 316 200 CST316SS0811 08g-18tpi x 50.8mm, 08g x 2′′ SS 316 200 CST316SS1003 10g-16tpi x 12.7mm, 10g x 1/2′′ SS 316 100 CST316SS1004 10g-16tpi x 15.9mm, 10g x 5/8′′ SS 316 100 CST316SS1005 10g-16tpi x 19.1mm, 10g x 3/4′′ SS 316 100 CST316SS1006 10g-16tpi x 25.4mm, 10g x 1′′ SS 316 100 CST316SS1007 10g-16tpi x 31.8mm, 10g x 1 1/4′′ SS 316 100 CST316SS1008 10g-16tpi x 38.1mm, 10g x 1 1/2′′ SS 316 100 CST316SS1009 10g-16tpi x 44.5mm, 10g x 1 3/4′′ SS 316 100 CST316SS1010 10g-16tpi x 50.8mm, 10g x 2′′ SS 316 100 CST316SS1011 10g-16tpi x 63.5mm, 10g x 2
These self tapping screws have a phillips countersunk head and a needle point. They are available in zinc plated steel or stainless steel in grade 304 or 316. Features: Available in a wide variety of sizes to suit most applications Countersunk head for a flush finish Needle point for easy penetration Choose zinc plated steel for indoor use and stainless steel for outdoor use or use in highly corrosive environments Self tapping screws – quick reference Code Size Specs Qty CST316SS0402 04g-24tpi x 09.5mm, 04g x 3/8′′ SS 316 200 CST316SS0403 04g-24tpi x 12.7mm, 04g x 1/2′′ SS 316 200 CST316SS0404 04g-24tpi x 15.9mm, 04g x 5/8′′ SS 316 200 CST316SS0405 04g-24tpi x 19.1mm, 04g x 3/4′′ SS 316 200 CST316SS0424025 04g-24tpi x 06.3mm, 04g x 1/4′′ SS 316 200 CST316SS0424100 04g-24tpi x 25.4mm, 04g x 1′′ SS 316 200 CST316SS0603 06g-20tpi x 12.7mm, 06g x 1/2′′ SS 316 200 CST316SS0604 06g-20tpi x 15.9mm, 06g x 5/8′′ SS 316 200 CST316SS0605 06g-20tpi x 19.1mm, 06g x 3/4′′ SS 316 200 CST316SS0606 06g-20tpi x 25.4mm, 06g x 1′′ SS 316 200 CST316SS0607 06g-20tpi x 31.8mm, 06g x 1 1/4′′ SS 316 200 CST316SS0608 06g-20tpi x 38.1mm, 06g x 1 1/2′′ SS 316 200 CST316SS0609 08g-18tpi x 09.5mm, 08g x 3/8′′ SS 316 200 CST316SS0610 08g-18tpi x 12.7mm, 08g x 1/2′′ SS 316 200 CST316SS0805 08g-18tpi x 19.1mm, 08g x 3/4′′ SS 316 200 CST316SS0808 08g-18tpi x 15.9mm, 08g x 5/8′′ SS 316 200 CST316SS0808C 08g-18tpi x 25.4mm, 08g x 1′′ SS 316 200 CST316SS0809 08g-18tpi x 31.8mm, 08g x 1 1/4′′ SS 316 200 CST316SS0810 08g-18tpi x 38.1mm, 08g x 1 1/2′′ SS 316 200 CST316SS0810A 08g-18tpi x 44.5mm, 08g x 1 3/4′′ SS 316 200 CST316SS0811 08g-18tpi x 50.8mm, 08g x 2′′ SS 316 200 CST316SS1003 10g-16tpi x 12.7mm, 10g x 1/2′′ SS 316 100 CST316SS1004 10g-16tpi x 15.9mm, 10g x 5/8′′ SS 316 100 CST316SS1005 10g-16tpi x 19.1mm, 10g x 3/4′′ SS 316 100 CST316SS1006 10g-16tpi x 25.4mm, 10g x 1′′ SS 316 100 CST316SS1007 10g-16tpi x 31.8mm, 10g x 1 1/4′′ SS 316 100 CST316SS1008 10g-16tpi x 38.1mm, 10g x 1 1/2′′ SS 316 100 CST316SS1009 10g-16tpi x 44.5mm, 10g x 1 3/4′′ SS 316 100 CST316SS1010 10g-16tpi x 50.8mm, 10g x 2′′ SS 316 100 CST316SS1011 10g-16tpi x 63.5mm, 10g x 2
in 2 offers
The lowest price for 12g-14 x 2-1/2" Countersunk Phillips (PH3) Self Tapper Screw A4-70 Stainless G316 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 27 Feb 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 13 May 2026.
Last updated at 13/05/2026 17:03:42
12g (5.50mm) x 2-1/2" Countersunk Phillips (PH3) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Free delivery between Fri – Tue
Hobsons - #12 x 2-1/2 316 Stainless Ansi B18.6.3 / A4 Self-Tapper Csk Phil | T16C12250 (Pack Of 100)
Delivery between 14–22 May $7.95
| Size | 12g (5.50mm) |
| Drive Type | Phillips |
| System of Measurement | Screw Gauge |
| Drive Size | PH3 |
| Head Type | Countersunk Head |
12g (5.50mm) x 2-1/2" Countersunk Phillips (PH3) Self Tapping Screw A4-70 Stainless G316 ANSI B18.6.4
Free delivery between Fri – Tue
Hobsons - #12 x 2-1/2 316 Stainless Ansi B18.6.3 / A4 Self-Tapper Csk Phil | T16C12250 (Pack Of 100)
Delivery between 14–22 May $7.95
| Size | 12g (5.50mm) |
| Drive Type | Phillips |
| System of Measurement | Screw Gauge |
| Drive Size | PH3 |
| Head Type | Countersunk Head |
