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 05/12/2026 07:55:16
5/16" x 24 TPI x 1" Full Thread UNF Fine Countersunk Head Socket Screw Grade 10.9 (3/16" Key) Plain Black Uncoated ANSI B 18.3
Next-day delivery $5
Hobsons - 5/16 x 1 Plain Ansi B18.3 / Astm F835 Unf Socket Screw Countersunk H | Knf516/1 (Pack Of 100)
Delivery between 13–21 May $7.95
| Fastener Size | 5/16" |
| Fastener Length | 1" |
| System of Measurement | UNF |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
5/16" x 24 TPI x 1" Full Thread UNF Fine Countersunk Head Socket Screw Grade 10.9 (3/16" Key) Plain Black Uncoated ANSI B 18.3
Next-day delivery $5
Hobsons - 5/16 x 1 Plain Ansi B18.3 / Astm F835 Unf Socket Screw Countersunk H | Knf516/1 (Pack Of 100)
Delivery between 13–21 May $7.95
| Fastener Size | 5/16" |
| Fastener Length | 1" |
| System of Measurement | UNF |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
