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HT Allen Socket Cap Screw - UNC Series

HT Allen Socket Cap Screws – UNC Series provide high‑strength 12.9 grade fasteners with a 12.9 black finish and BS 18.3 (1936) thread standard. They are available in a range of sizes from 1/2″ to 1″, with lengths up to 10″, and can be ordered with either full or half thread. This selection supports a variety of industrial fastening applications requiring a robust, hex‑socket cap design.

HT Allen Socket Cap Screw - UNC Series

66 products

HT Allen Hex Socket Cap Screw:5/16" x 2 1/2"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/16" x 2 1/2"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/16 2 1/2 C HT

HT Allen Hex Socket Cap Screw:5/16" x 2"UNC - BS 18.3 (1936)/12.9/Black/Full Thread

5/16" x 2"UNC - BS 18.3 (1936)/12.9/Black/Full Thread

Steel · 09125/16 2 C FT

HT Allen Hex Socket Cap Screw:5/16" x 3 1/2"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/16" x 3 1/2"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/16 3 1/2 C HT

HT Allen Hex Socket Cap Screw:5/16" x 3"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/16" x 3"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/16 3 C HT

HT Allen Hex Socket Cap Screw:5/16" x 4"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/16" x 4"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/16 4 C HT

HT Allen Hex Socket Cap Screw:5/8" x 1 1/2"UNC - BS 18.3 (1936)/12.9/Black/Full Thread

5/8" x 1 1/2"UNC - BS 18.3 (1936)/12.9/Black/Full Thread

Steel · 09125/8 1 1/2 C FT

HT Allen Hex Socket Cap Screw:5/8" x 3 1/2"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/8" x 3 1/2"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/8 3 1/2 C HT

HT Allen Hex Socket Cap Screw:5/8" x 3"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/8" x 3"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/8 3 C HT

HT Allen Hex Socket Cap Screw:5/8" x 4"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/8" x 4"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/8 4 C HT

HT Allen Hex Socket Cap Screw:5/8" x 6"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/8" x 6"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/8 6 C HT

HT Allen Hex Socket Cap Screw:5/8" x 7"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/8" x 7"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/8 7 C HT

HT Allen Hex Socket Cap Screw:5/8" x 8"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

5/8" x 8"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09125/8 8 C HT

HT Allen Hex Socket Cap Screw:7/16" x 1"UNC - BS 18.3 (1936)/12.9/Black/Full Thread

7/16" x 1"UNC - BS 18.3 (1936)/12.9/Black/Full Thread

Steel · 09127/16 1 C FT

HT Allen Hex Socket Cap Screw:7/8" x 3"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

7/8" x 3"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09127/8 3 C HT

HT Allen Hex Socket Cap Screw:7/8" x 4"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

7/8" x 4"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09127/8 4 C HT

HT Allen Hex Socket Cap Screw:7/8" x 5"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

7/8" x 5"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09127/8 5 C HT

HT Allen Hex Socket Cap Screw:7/8" x 6"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

7/8" x 6"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09127/8 6 C HT

HT Allen Hex Socket Cap Screw:7/8" x 8"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

7/8" x 8"UNC - BS 18.3 (1936)/12.9/Black/Half Thread

Steel · 09127/8 8 C HT