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UNC 5/16", Socket Screw, Countersunk, High Tensile 8.8, DIN 7991 – Fixaball Ltd. Fixings and Fasteners UK
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Amazon.com: Hex Head Cap Screw, 1''-8 UNC Thread, 11" Long, Partially Threaded, Alloy Steel, Grade 8, Black Oxide (Pack of 15) : Industrial & Scientific
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10pcs Unc 1/4-20 Us Coarse Thread 304 A2-70 Stainless Steel Cross Recess Round Phillips Pan Head Screw Bolt - Screws - AliExpress
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