MT Valves & Fittings product. Available references and published specifications: • STZ93120100 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X100+TUERCA+ARANDELA (4UD); weight (kg): 1.54; small / large box: 1 / 12 • STZ93120110 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X110+TUERCA+ARANDELA (4UD); weight (kg): 1.64; small / large box: 1 / 10 • STZ93120120 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X120+TUERCA+ARANDELA (4UD); weight (kg): 1.73; small / large box: 1 / 10 • STZ93120130 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X130+TUERCA+ARANDELA (4UD); weight (kg): 1.81; small / large box: 1 / 10 • STZ93120140 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X140+TUERCA+ARANDELA (4UD); weight (kg): 1.91; small / large box: 1 / 10 • STZ93120150 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X150+TUERCA+ARANDELA (4UD); weight (kg): 2.01; small / large box: 1 / 10 • STZ93120160 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X160+TUERCA+ARANDELA (4UD); weight (kg): 2.08; small / large box: 1 / 9 • STZ93120180 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X180+TUERCA+ARANDELA (4UD); weight (kg): 2.27; small / large box: 1 / 8 • STZ93120190 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X190+TUERCA+ARANDELA (4UD); weight (kg): 2.37; small / large box: 1 / 8 • STZ93120200 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X200+TUERCA+ARANDELA (4UD); weight (kg): 2.46; small / large box: 1 / 8 • STZ93120210 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X210+TUERCA+ARANDELA (4UD); weight (kg): 2.54; small / large box: 1 / 8 • STZ93120220 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X220+TUERCA+ARANDELA (4UD); weight (kg): 2.64; small / large box: 1 / 8 • STZ93120230 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X230+TUERCA+ARANDELA (4UD); weight (kg): 2.73; small / large box: 1 / 8 • STZ93120250 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X250+TUERCA+ARANDELA (4UD); weight (kg): 2.92; small / large box: 1 / 6 • STZ93120270 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X270+TUERCA+ARANDELA (4UD); weight (kg): 3.1; small / large box: 1 / 6 • STZ93120280 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X280+TUERCA+ARANDELA (4UD); weight (kg): 3.2; small / large box: 1 / 6 • STZ9312080 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X80+TUERCA+ARANDELA (4UD); weight (kg): 1.33; small / large box: 1 / 12 • STZ9312090 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X90+TUERCA+ARANDELA (4UD); weight (kg): 1.44; small / large box: 1 / 12 • STZ93120240 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X240+TUERCA+ARANDELA (4ud); weight (kg): 2.82; small / large box: 1 / 6 • STZ93120310 — measures: SET TORNILLO ZINC. 8.8 DIN931 M20X310+TUERCA+ARANDELA (4ud); weight (kg): 3.5; small / large box: 1 / 4 Price and local availability on request. Source: https://mtspain.net/en/set-of-4-units-zinc-plated-bolts-8-8-din-931-m20-nuts-washers/