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 2 offers
The lowest price for 3/4 x 3 1/2" UNC Flat Head Socket Screw Plain - Box of 25 right now is $130.31 at Industrial Shed, compared across 2 retailers.
The all-time low was $70.89 on 10 Feb 2026 — today's price is 84% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 15 May 2026.
3/4 x 3 1/2" UNC Flat Head Socket Screw Plain - Box of 25
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 15/05/2026 00:01:20
Hobsons - 3/4 x 3-1/2 Plain Ansi B18.3 / Astm F835 Unc Socket Screw Countersunk H | Knc34/312 (Pack Of 25)
Delivery between 15–23 May $7.95
3/4 x 3 1/2" UNC Flat Head Socket Screw Plain - Box of 25
Delivery between 19–26 May $19.21
| Fastener Size | 3/4" |
| Fastener Length | 3 1/2" |
| System of Measurement | UNC |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
Hobsons - 3/4 x 3-1/2 Plain Ansi B18.3 / Astm F835 Unc Socket Screw Countersunk H | Knc34/312 (Pack Of 25)
Delivery between 15–23 May $7.95
3/4 x 3 1/2" UNC Flat Head Socket Screw Plain - Box of 25
Delivery between 19–26 May $19.21
| Fastener Size | 3/4" |
| Fastener Length | 3 1/2" |
| System of Measurement | UNC |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
