Sirius A4 316 Stainless Steel Countersunk Machine Screws with Pozi heads.
Sirius BZP Countersunk Machine Screws with Slotted heads.
Iso Metric Countersunk Socket Head Screws. High Tensile Grade 10.9 DIN 7991. Made to specifications ISO 10642
Sirius black grade 12.9 socket hex head screw. Fully threaded in lengths up to 40mm, and partially threaded thereafter.
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