Fasteners > Screws > Socket Countersunk Screws | Flat Head Socket Screw | Flat Head/ Countersunk Socket Screws (UNC/UNF) are manufactured to ANSI B18.3 / ASTM F835 | Made of high-grade alloy steel | Available in plain and Zinc finish. |
Fasteners > Screws > Socket Countersunk Screws | Flat Head Socket Screw | Flat Head/ Countersunk Socket Screws (UNC/UNF) are manufactured to ANSI B18.3 / ASTM F835 | Made of high-grade alloy steel | Available in plain and Zinc finish. |
in 3 offers
The lowest price for 1/2 x 3/4" UNC Flat Head Socket Screw Plain - Box of 100 right now is $14.00 at Bolt & Nut Australia, compared across 2 retailers.
The all-time low was $14.00 on 30 July 2025. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 27 Apr 2026.
1/2 x 3/4" UNC Flat Head Socket Screw Plain - Box of 100
Fasteners > Screws > Socket Countersunk Screws | Flat Head Socket Screw | Flat Head/ Countersunk Socket Screws (UNC/UNF) are manufactured to ANSI B18.3 / ASTM F835 | Made of high-grade alloy steel | Available in plain and Zinc finish. |
Fasteners > Screws > Socket Countersunk Screws | Flat Head Socket Screw | Flat Head/ Countersunk Socket Screws (UNC/UNF) are manufactured to ANSI B18.3 / ASTM F835 | Made of high-grade alloy steel | Available in plain and Zinc finish. |
Last updated at 27/04/2026 19:46:50
1/2" x 13 TPI x 3/4" Full Thread UNC Coarse Countersunk Head Socket Screw Grade 10.9 (5/16" Key) Plain Black Uncoated ANSI B 18.3
Free delivery between Wed – Fri
1/2" x 13 TPI UNC Coarse Plain Black Uncoated Grade 10.9 Countersunk Head Socket (5/16" Key) Screws ANSI B 18.3
Free delivery between Wed – Fri
Hobsons - 1/2 x 3/4 Plain Ansi B18.3 / Astm F835 Unc Socket Screw Countersunk H | Knc12/34 (Pack Of 100)
Delivery between 28 Apr – 6 May $7.95
| Size | 1/2" |
| Thread type | UNC / BSW - Coarse |
| Drive Type | Internal Hex |
| System of Measurement | Imperial |
| Drive Size | 5/16" |
1/2" x 13 TPI x 3/4" Full Thread UNC Coarse Countersunk Head Socket Screw Grade 10.9 (5/16" Key) Plain Black Uncoated ANSI B 18.3
Free delivery between Wed – Fri
1/2" x 13 TPI UNC Coarse Plain Black Uncoated Grade 10.9 Countersunk Head Socket (5/16" Key) Screws ANSI B 18.3
Free delivery between Wed – Fri
Hobsons - 1/2 x 3/4 Plain Ansi B18.3 / Astm F835 Unc Socket Screw Countersunk H | Knc12/34 (Pack Of 100)
Delivery between 28 Apr – 6 May $7.95
| Size | 1/2" |
| Thread type | UNC / BSW - Coarse |
| Drive Type | Internal Hex |
| System of Measurement | Imperial |
| Drive Size | 5/16" |
