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. |
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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 11/05/2026 00:18:48
5/16" x 24 TPI x 1-1/4" Full Thread UNF Fine Countersunk Head Socket Screw Grade 10.9 (3/16" Key) Plain Black Uncoated ANSI B 18.3
Free delivery between Tue – Thu
Hobsons - 5/16 x 1-1/4 Plain Ansi B18.3 / Astm F835 Unf Socket Screw Countersunk H | Knf516/114 (Pack Of 100)
Delivery between 11–19 May $7.95
5/16 x 1 1/4" UNF Flat Head Socket Screw, Plain - Box of 100
Delivery between 13–20 May $12.61
| Fastener Size | 5/16" |
| Fastener Length | 1 1/4" |
| System of Measurement | UNF |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
5/16" x 24 TPI x 1-1/4" Full Thread UNF Fine Countersunk Head Socket Screw Grade 10.9 (3/16" Key) Plain Black Uncoated ANSI B 18.3
Free delivery between Tue – Thu
Hobsons - 5/16 x 1-1/4 Plain Ansi B18.3 / Astm F835 Unf Socket Screw Countersunk H | Knf516/114 (Pack Of 100)
Delivery between 11–19 May $7.95
5/16 x 1 1/4" UNF Flat Head Socket Screw, Plain - Box of 100
Delivery between 13–20 May $12.61
| Fastener Size | 5/16" |
| Fastener Length | 1 1/4" |
| System of Measurement | UNF |
| Finish | Plain |
| Drive Type | Socket (Allen Key) |
