UNF Socket Cap Screws | Imperial Fine Thread Allen Screws UK

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We supply UNF socket cap screws for engineering, automotive and industrial applications, including imperial fine thread socket screws for high-strength fastening where a recessed hex drive is preferred.

Available in self colour steel, zinc plated steel and stainless steel options, our UNF socket cap screws are suitable for machinery, fabrication and general assembly work where secure fastening and reliable hex key tightening are important. The live range includes both fully threaded set screws and part threaded bolts in common UNF sizes.

Browse related categories: Socket Cap Screws, UNC, 12.9 Unplated Steel, 12.9 Zinc Plated Steel and Thread Data Guide.

10-32 UNF A2 Stainless Socket Cap Bolts

£2.27 (Inc. VAT)

£1.89 (Ex. VAT)

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1/4" UNF A2 Stainless Socket Cap Bolts

£0.44 (Inc. VAT)

£0.37 (Ex. VAT)

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5/16" UNF A2 Stainless Socket Cap Bolts

£0.91 (Inc. VAT)

£0.76 (Ex. VAT)

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5/16 UNF A2 Socket Cap Set Screws

£0.61 (Inc. VAT)

£0.51 (Ex. VAT)

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10-32 UNF A2 Socket Cap Screws ASME B18.3

£1.30 (Inc. VAT)

£1.08 (Ex. VAT)

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1/4"-28 UNF 12.9 Socket Cap Bolts BS 2470

£0.24 (Inc. VAT)

£0.20 (Ex. VAT)

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1/4" UNF A2 Stainless Socket Cap Screws

£0.24 (Inc. VAT)

£0.20 (Ex. VAT)

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8-36 UNF A2 Socket Cap Set Screws

£0.30 (Inc. VAT)

£0.25 (Ex. VAT)

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5/8" - 18 tpi UNF ZINC 12.9 SOCKET CAP SCREWS

£17.59 (Inc. VAT)

£14.66 (Ex. VAT)

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3/8" UNF A2 Grade Stainless Steel Socket Cap Set Screws

£0.67 (Inc. VAT)

£0.56 (Ex. VAT)

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1/2" UNF A2 Stainless Steel Socket Cap Head Bolts

£4.39 (Inc. VAT)

£3.66 (Ex. VAT)

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3/4" - 16 tpi UNF ZINC 12.9 SOCKET CAP SCREWS

£10.98 (Inc. VAT)

£9.15 (Ex. VAT)

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3/8" - 24 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

£2.18 (Inc. VAT)

£1.82 (Ex. VAT)

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8-36 UNF A2 Stainless Socket Cap Screws

£11.98 (Inc. VAT)

£9.98 (Ex. VAT)

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5/8" - 18 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

£7.82 (Inc. VAT)

£6.52 (Ex. VAT)

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1/2" - 20 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

£4.61 (Inc. VAT)

£3.84 (Ex. VAT)

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1/4" - 28 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

£0.85 (Inc. VAT)

£0.71 (Ex. VAT)

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10-32 UNF A2 Stainless Socket Cap Bolts

10-32 UNF A2 Stainless Steel Socket Cap Head Bolts These 10-32 UNF socket cap head bolts are manufactured from corrosion-resistant A2 stainless steel and feature a fine 32 TPI Unified National Fine thread. Their cylindrical cap head and internal hexagon...

£2.27 (Inc. VAT)

£1.89 (Ex. VAT)

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1/4" UNF A2 Stainless Socket Cap Bolts

1/4"-28 UNF A2 Stainless Steel Socket Cap Head Bolts These 1/4" UNF socket cap head bolts are manufactured from corrosion-resistant A2 stainless steel and feature a fine 28 TPI Unified National Fine thread. Their cylindrical cap head and internal hexagon...

£0.44 (Inc. VAT)

£0.37 (Ex. VAT)

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5/16" UNF A2 Stainless Socket Cap Bolts

5/16"-24 UNF A2 Stainless Steel Socket Cap Head Bolts These 5/16" UNF socket cap head bolts are manufactured from corrosion-resistant A2 stainless steel and feature a fine 24 TPI Unified National Fine thread. Their cylindrical cap head and deep internal...

£0.91 (Inc. VAT)

£0.76 (Ex. VAT)

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5/16 UNF A2 Socket Cap Set Screws

5/16"-24 UNF A2 Stainless-Steel Socket Cap Screws These 5/16"-24 UNF socket cap screws are manufactured from A2 stainless steel and are fully threaded along their available length. The 24 threads per inch Unified National Fine thread makes them suitable...

£0.61 (Inc. VAT)

£0.51 (Ex. VAT)

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10-32 UNF A2 Socket Cap Screws ASME B18.3

No.10-32 UNF A2 Stainless-Steel Socket Cap Screws These No.10-32 UNF socket cap screws are manufactured from A2 stainless steel and are fully threaded along their available length. The 32 threads per inch Unified National Fine thread makes them suitable...

£1.30 (Inc. VAT)

£1.08 (Ex. VAT)

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1/4"-28 UNF 12.9 Socket Cap Bolts BS 2470

1/4"-28 UNF ASTM A574 high-strength alloy steel socket cap head bolts with a part-threaded shank, available in lengths from 1 1/2" to 4 1/2". These imperial Allen key bolts combine a cylindrical socket cap head with a fine-pitch Unified thread and a...

£0.24 (Inc. VAT)

£0.20 (Ex. VAT)

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1/4" UNF A2 Stainless Socket Cap Screws

1/4" UNF A2 stainless steel socket cap set screws, fully threaded for general engineering, automotive, machinery, fabrication, repair and maintenance applications. These imperial fine thread fasteners are manufactured from A2 stainless steel, giving good...

£0.24 (Inc. VAT)

£0.20 (Ex. VAT)

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8-36 UNF A2 Socket Cap Set Screws

No.8-36 UNF A2 Stainless-Steel Socket Cap Screws These No.8-36 UNF socket cap screws are manufactured from A2 stainless steel and are fully threaded along their available length. The 36 threads per inch Unified National Fine thread makes them suitable...

£0.30 (Inc. VAT)

£0.25 (Ex. VAT)

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5/8" - 18 tpi UNF ZINC 12.9 SOCKET CAP SCREWS

Thread - UNF Size - 5/8" - 18 tpi 12.9 Grade high tensile steel Zinc plated All sizes are fully threaded measured from under the head

£17.59 (Inc. VAT)

£14.66 (Ex. VAT)

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3/8" UNF A2 Grade Stainless Steel Socket Cap Set Screws

Material: A2 Stainless Steel Thread - UNF (Unified National Fine) (AF) Head Style - Socket Cap Type -Fully Threaded Size - 3/8" - 24tpi ABCDEF 3/8" 0.55" 0.38" 5/16" 24

£0.67 (Inc. VAT)

£0.56 (Ex. VAT)

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1/2" UNF A2 Stainless Steel Socket Cap Head Bolts

UNF A2 Stainless Steel Socket Cap Head Bolts 1/2" Thread size 20tpi A2 Stainless Steel grade 3/8" Allen key size

£4.39 (Inc. VAT)

£3.66 (Ex. VAT)

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3/4" - 16 tpi UNF ZINC 12.9 SOCKET CAP SCREWS

Thread - UNF Size - 3/4" - 16 tpi 12.9 Grade high tensile steel Zinc plated All sizes are fully threaded measured from under the head

£10.98 (Inc. VAT)

£9.15 (Ex. VAT)

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3/8" - 24 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

Thread - UNF Size - 3/8" - 24 tpi 12.9 Grade high tensile steel Zinc plated All sizes are part threaded measured from under the head

£2.18 (Inc. VAT)

£1.82 (Ex. VAT)

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8-36 UNF A2 Stainless Socket Cap Screws

8-36 UNF A2 stainless steel socket cap head bolts, also known as socket cap screws or Allen bolts. These imperial fine thread fasteners are manufactured from A2 stainless steel, giving good corrosion resistance for general indoor, outdoor and damp...

£11.98 (Inc. VAT)

£9.98 (Ex. VAT)

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5/8" - 18 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

Thread - UNF Size - 1/2" - 20 tpi 12.9 Grade high tensile steel Zinc plated All sizes are part threaded measured from under the head

£7.82 (Inc. VAT)

£6.52 (Ex. VAT)

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1/2" - 20 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

Thread - UNF Size - 1/2" - 20 tpi 12.9 Grade high tensile steel Zinc plated All sizes are part threaded measured from under the head

£4.61 (Inc. VAT)

£3.84 (Ex. VAT)

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1/4" - 28 tpi UNF ZINC 12.9 SOCKET CAP BOLTS

Thread - UNF Size - 1/4" - 28 tpi 12.9 Grade high tensile steel Zinc plated All sizes are part threaded measured from under the head

£0.85 (Inc. VAT)

£0.71 (Ex. VAT)

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