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. |
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 03/21/2026 15:33:48
PLN SO FHSS: 1/2 UNF X 1-1/2
Delivery $15
1/2" x 20 TPI x 1-1/2" Full Thread UNF Fine Countersunk Head Socket Screw Grade 10.9 (5/16" Key) Plain Black Uncoated ANSI B 18.3
Free delivery between Tue – Thu
Hobsons - 1/2 x 1-1/2 Plain Ansi B18.3 / Astm F835 Unf Socket Screw Countersunk H | Knf12/112 (Pack Of 50)
Delivery between 23–31 Mar $7.95
| Fastener Size | 1/2" |
| Fastener Length | 1 1/2" |
| System of Measurement | UNF |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
PLN SO FHSS: 1/2 UNF X 1-1/2
Delivery $15
1/2" x 20 TPI x 1-1/2" Full Thread UNF Fine Countersunk Head Socket Screw Grade 10.9 (5/16" Key) Plain Black Uncoated ANSI B 18.3
Free delivery between Tue – Thu
Hobsons - 1/2 x 1-1/2 Plain Ansi B18.3 / Astm F835 Unf Socket Screw Countersunk H | Knf12/112 (Pack Of 50)
Delivery between 23–31 Mar $7.95
| Fastener Size | 1/2" |
| Fastener Length | 1 1/2" |
| System of Measurement | UNF |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
